HDMI doesn't work

hello everyone,i have design my own carrier board for jetson nano module(with 16GB eMMC),but the HDMI doesn’t work.On my board the CEC signal of the HDMI connector is pull down to GND with a 2k resistor.Here is the log info frome the debug uart.

[0000.243] [TegraBoot] (version 00.00.2018.01-l4t-7da7a580)
[0000.248] Processing in cold boot mode Bootloader 2
[0000.252] A02 Bootrom Patch rev = 1023
[0000.256] Power-up reason: pmc por
[0000.259] No Battery Present
[0000.262] pmic max77620 reset reason
[0000.265] pmic max77620 NVERC : 0x40
[0000.268] RamCode = 0
[0000.271] Platform has DDR4 type RAM
[0000.274] max77620 disabling SD1 Remote Sense
[0000.278] Setting DDR voltage to 1125mv
[0000.282] Serial Number of Pmic Max77663: 0x918f1
[0000.290] Entering ramdump check
[0000.293] Get RamDumpCarveOut = 0x0
[0000.296] RamDumpCarveOut=0x0,  RamDumperFlag=0xe59ff3f8
[0000.301] Last reboot was clean, booting normally!
[0000.306] Sdram initialization is successful
[0000.310] SecureOs Carveout Base=0x00000000ff800000 Size=0x00800000
[0000.316] Lp0 Carveout Base=0x00000000ff780000 Size=0x00001000
[0000.322] BpmpFw Carveout Base=0x00000000ff700000 Size=0x00080000
[0000.328] GSC1 Carveout Base=0x00000000ff600000 Size=0x00100000
[0000.334] GSC2 Carveout Base=0x00000000ff500000 Size=0x00100000
[0000.339] GSC4 Carveout Base=0x00000000ff400000 Size=0x00100000
[0000.345] GSC5 Carveout Base=0x00000000ff300000 Size=0x00100000
[0000.351] GSC3 Carveout Base=0x000000017f300000 Size=0x00d00000
[0000.367] RamDump Carveout Base=0x00000000ff280000 Size=0x00080000
[0000.373] Platform-DebugCarveout: 0
[0000.377] Nck Carveout Base=0x00000000ff080000 Size=0x00200000
[0000.382] Non secure mode, and RB not enabled.
[0000.399] Csd NumOfBlocks=0
[0000.408] Using GPT Primary to query partitions
[0000.413] Loading Tboot-CPU binary
[0000.419] Verifying TBC in OdmNonSecureSBK mode
[0000.429] Bootloader load address is 0xa0000000, entry address is 0xa0000258
[0000.436] Bootloader downloaded successfully.
[0000.440] Downloaded Tboot-CPU binary to 0xa0000258
[0000.445] MAX77620_GPIO5 configured
[0000.448] CPU power rail is up
[0000.451] CPU clock enabled
[0000.455] Performing RAM repair
[0000.458] Updating A64 Warmreset Address to 0xa00002e9
[0000.463] Loading NvTbootBootloaderDTB
[0000.477] Verifying NvTbootBootloaderDTB in OdmNonSecureSBK mode
[0000.542] Bootloader DTB Load Address: 0x83000000
[0000.547] Loading NvTbootKernelDTB
[0000.561] Verifying NvTbootKernelDTB in OdmNonSecureSBK mode
[0000.625] Kernel DTB Load Address: 0x83100000
[0000.631] Loading cboot binary
[0000.646] Verifying EBT in OdmNonSecureSBK mode
[0000.689] Bootloader load address is 0x92c00000, entry address is 0x92c00258
[0000.696] Bootloader downloaded successfully.
[0000.702] Using BFS PT to query partitions
[0000.706] Next binary entry address: 0x92c00258
[0000.711] BoardId: 3448
[0000.715] Overriding pmu board id with proc board id
[0000.720] Display board id is not available
[0000.736] Verifying SC7EntryFw in OdmNonSecureSBK mode
[0000.788] /bpmp deleted
[0000.790] SC7EntryFw header found loaded at 0xff700000
[0000.978] OVR2 PMIC
[0000.980] Bpmp FW successfully loaded
[0000.985] WB0 init successfully at 0xff780000
[0000.989] Set NvDecSticky Bits
[0000.993] GSC2 address ff53fffc value c0edbbcc
[0000.999] GSC MC Settings done
[0001.002] TOS Image length 53680
[0001.005]  Monitor size 53680
[0001.008]  OS size 0
[0001.014] Secure Os AES-CMAC Verification Success!
[0001.018] TOS image cipher info: plaintext
[0001.022] Loading and Validation of Secure OS Successful
[0001.038] SC7 Entry Firmware - 0xff700000, 0x4000
[0001.043] NvTbootPackSdramParams: start.
[0001.048] NvTbootPackSdramParams: done.
[0001.052] Tegraboot started after 172915 us
[0001.056] Basic modules init took 569564 us
[0001.060] Sec Bootdevice Read Time = 57 ms, Read Size = 2292 KB
[0001.065] Sec Bootdevice Write Time = 0 ms, Write Size = 0 KB
[0001.071] Next stage binary read took 11909 us
[0001.075] Carveout took -23608 us
[0001.078] CPU initialization took 346538 us
[0001.082] Total time taken by TegraBoot 904403 us

[0001.087] Starting CPU & Halting co-processor

64NOTICE:  BL31: v1.3(release):a28d87f09
NOTICE:  BL31: Built : 13:38:45, Nov  5 2019
ERROR:   Error initializing runtime service trusty_fast
[0001.209] RamCode = 0
[0001.214] LPDDR4 Training: Read DT: Number of tables = 2
[0001.219] EMC Training (SRC-freq: 204000; DST-freq: 1600000)
[0001.232] EMC Training Successful
[0001.235] 408000 not found in DVFS table
[0001.241] RamCode = 0
[0001.244] DT Write: emc-table@204000 succeeded
[0001.250] DT Write: emc-table@1600000 succeeded
[0001.254] LPDDR4 Training: Write DT: Number of tables = 2
[0001.293]
[0001.294] Debug Init done
[0001.297] Marked DTB cacheable
[0001.300] Bootloader DTB loaded at 0x83000000
[0001.305] Marked DTB cacheable
[0001.308] Kernel DTB loaded at 0x83100000
[0001.311] DeviceTree Init done
[0001.323] Pinmux applied successfully
[0001.327] gicd_base: 0x50041000
[0001.331] gicc_base: 0x50042000
[0001.334] Interrupts Init done
[0001.338] Using base:0x60005090 & irq:208 for tick-timer
[0001.343] Using base:0x60005098 for delay-timer
[0001.348] platform_init_timer: DONE
[0001.351] Timer(tick) Init done
[0001.355] osc freq = 38400 khz
[0001.359]
[0001.360] welcome to cboot
[0001.362]
[0001.364] Cboot Version: 00.00.2018.01-t210-21e03500
[0001.369] calling constructors
[0001.372] initializing heap
[0001.374] initializing threads
[0001.377] initializing timers
[0001.380] creating bootstrap completion thread
[0001.384] top of bootstrap2()
[0001.387] CPU: ARM Cortex A57
[0001.390] CPU: MIDR: 0x411FD071, MPIDR: 0x80000000
[0001.395] initializing platform
[0001.398] Scratch reg 37 & 271 initial value set..
[0001.404] cboot:secure-pmc present
[0001.454] config for ddr50 mode completed
[0001.458] sdmmc bdev is already initialized
[0001.462] Enable APE clock
[0001.465] Un-powergate APE partition
[0001.468] of_register: registering tegra_udc to of_hal
[0001.473] of_register: registering tegra_udc to of_hal
[0001.478] of_register: registering inv20628-driver to of_hal
[0001.484] of_register: registering ads1015-driver to of_hal
[0001.489] of_register: registering lp8557-bl-driver to of_hal
[0001.495] of_register: registering bq2419x_charger to of_hal
[0001.501] of_register: registering cpc to of_hal
[0001.505] of_register: registering bq27441_fuel_gauge to of_hal
[0001.517] gpio framework initialized
[0001.520] of_register: registering tca9539_gpio to of_hal
[0001.525] of_register: registering tca9539_gpio to of_hal
[0001.531] of_register: registering i2c_bus_driver to of_hal
[0001.536] of_register: registering i2c_bus_driver to of_hal
[0001.542] of_register: registering i2c_bus_driver to of_hal
[0001.548] of_register: registering i2c_bus_driver to of_hal
[0001.553] pmic framework initialized
[0001.557] of_register: registering max77620_pmic to of_hal
[0001.562] regulator framework initialized
[0001.566] of_register: registering tps65132_bl_driver to of_hal
[0001.572] initializing target
[0001.578] gpio_driver_register: register 'tegra_gpio_driver' driver
[0001.586] fixed regulator driver initialized
[0001.603] initializing OF layer
[0001.606] NCK carveout not present
[0001.609] Skipping dts_overrides
[0001.614] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0001.630] I2C Bus Init done
[0001.633] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0001.643] I2C Bus Init done
[0001.646] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0001.656] I2C Bus Init done
[0001.658] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0001.669] I2C Bus Init done
[0001.671] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0001.682] I2C Bus Init done
[0001.684] of_children_init: Ops found for compatible string maxim,max77620
[0001.694] max77620_init using irq 118
[0001.699] register 'maxim,max77620' pmic
[0001.704] gpio_driver_register: register 'max77620-gpio' driver
[0001.710] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0001.720] I2C Bus Init done
[0001.724] NCK carveout not present
[0001.727] shim_invoke: No NCT, Calling dts updates
[0001.738] Find /i2c@7000c000's alias i2c0
[0001.742] get eeprom at 1-a0, size 256, type 0
[0001.751] Find /i2c@7000c500's alias i2c2
[0001.755] get eeprom at 3-a0, size 256, type 0
[0001.759] get eeprom at 3-ae, size 256, type 0
[0001.764] pm_ids_update: Updating 1,a0, size 256, type 0
[0001.769] I2C slave not started
[0001.772] I2C write failed
[0001.774] Writing offset failed
[0001.777] eeprom_init: EEPROM read failed
[0001.781] pm_ids_update: eeprom init failed
[0001.786] pm_ids_update: Updating 3,a0, size 256, type 0
[0001.816] pm_ids_update: The pm board id is 3448-0002-400
[0001.822] Adding plugin-manager/ids/3448-0002-400=/i2c@7000c500:module@0x50
[0001.830] pm_ids_update: pm id update successful
[0001.834] pm_ids_update: Updating 3,ae, size 256, type 0
[0001.840] I2C slave not started
[0001.843] I2C write failed
[0001.845] Writing offset failed
[0001.848] eeprom_init: EEPROM read failed
[0001.852] pm_ids_update: eeprom init failed
[0001.883] eeprom_get_mac: EEPROM invalid MAC address (all 0xff)
[0001.888] shim_eeprom_update_mac:267: Failed to update 0 MAC address in DTB
[0001.897] eeprom_get_mac: EEPROM invalid MAC address (all 0xff)
[0001.902] shim_eeprom_update_mac:267: Failed to update 1 MAC address in DTB
[0001.911] updating /chosen/nvidia,ethernet-mac node 00:04:4b:e5:db:9d
[0001.917] Plugin Manager: Parse ODM data 0x00094000
[0001.927] shim_cmdline_install: /chosen/bootargs: root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0
[0001.949] Find /i2c@7000c000's alias i2c0
[0001.952] get eeprom at 1-a0, size 256, type 0
[0001.961] Find /i2c@7000c500's alias i2c2
[0001.965] get eeprom at 3-a0, size 256, type 0
[0001.969] get eeprom at 3-ae, size 256, type 0
[0001.974] pm_ids_update: Updating 1,a0, size 256, type 0
[0001.979] I2C slave not started
[0001.982] I2C write failed
[0001.985] Writing offset failed
[0001.988] eeprom_init: EEPROM read failed
[0001.992] pm_ids_update: eeprom init failed
[0001.996] pm_ids_update: Updating 3,a0, size 256, type 0
[0002.026] pm_ids_update: The pm board id is 3448-0002-400
[0002.032] Adding plugin-manager/ids/3448-0002-400=/i2c@7000c500:module@0x50
[0002.039] pm_ids_update: pm id update successful
[0002.044] pm_ids_update: Updating 3,ae, size 256, type 0
[0002.049] I2C slave not started
[0002.052] I2C write failed
[0002.055] Writing offset failed
[0002.058] eeprom_init: EEPROM read failed
[0002.062] pm_ids_update: eeprom init failed
[0002.092] Chip UID is 00000001644495851c0000000cff8440
[0002.097] Add serial number:142281901817204084ff as DT property
[0002.105] Applying platform configs
[0002.112] platform-init is not present. Skipping
[0002.116] calling apps_init()
[0002.132] Found 14 GPT partitions in "sdmmc3_user"
[0002.137] Proceeding to Cold Boot
[0002.140] starting app android_boot_app
[0002.144] Device state: unlocked
[0002.147] display console init
[0002.155] could not find regulator
[0002.159] hdmi cable connected
[0002.174] edid read success
[0002.1[0002.193] DT entry for leds-pwm not found
89] edid read success
[0002.199] width = 640, height = 480, frequency = 25174825
[0002.205] width = 640, height = 480, frequency = 25174825
[0002.210] width = 640, height = 480, frequency = 25174825
[0002.215] width = 640, height = 480, frequency = 25174825
[0002.221] width = 1920, height = 1080, frequency = 148500000
[0002.226] width = 1920, height = 1080, frequency = 174500000
[0002.232] width = 720, height = 480, frequency = 27000000
[0002.237] width = 1920, height = 1080, frequency = 148351648
[0002.243] width = 1920, height = 1080, frequency = 148351648
[0002.249] width = 1280, height = 720, frequency = 74175824
[0002.254] width = 1280, height = 720, frequency = 74175824
[0002.260] width = 720, height = 480, frequency = 26973026
[0002.265] width = 720, height = 576, frequency = 26973026
[0002.270] width = 720, height = 480, frequency = 26973026
[0002.276] width = 720, height = 576, frequency = 26973026
[0002.281] width = 640, height = 480, frequency = 25174825
[0002.286] Best mode Width = 1920, Height = 1080, freq = 148351648
[0002.294] tmds-config node not found
[0002.298] pmc_set_io_pad_voltage: Error -2 retrieving platform-io-pad-voltagepropsetting 'avdd-io-hdmi-dp' regulator to 1050000 micro volts
[0002.313] setting 'vdd-1v8' regulator to 1800000 micro volts
[0002.321] could not find regulator
[0002.324] could not find regulator
[0002.327] could not find regulator
[0002.356] using default cmu settings
[0002.359] dc_hdmi_enable, starting HDMI initialisation
[0002.365] dc_hdmi_enable, HDMI initialisation complete
[0002.370] list and configure display window
[0002.379] display console init completed
[0002.390] subnode volume_up is not found !
[0002.394] subnode back is not found !
[0002.398] subnode volume_down is not found !
[0002.402] subnode menu is not found !
[0002.405] Gpio keyboard init success
[0002.452] found decompressor handler: lz4-legacy
[0002.466] decompressing blob (type 1)...
[0002.502] load_bmp_blob: panelresolution=1080 type=3
[0002.551] decompressor handler not found
[0002.555] load_firmware_blob: Firmware blob loaded, entries=2
[0002.560] se_aes_verify_sbk_clear: Error
[0002.564] bl_battery_charging: connected to external power supply
[0002.572] xusb is supported
[0002.578] error while finding nvidia,portmap
[0002.583] could not find regulator
[0003.086] xusb blob version 0 size 124416
[0003.090] firmware size 124416
[0003.095] Firmware timestamp: 0x5cd2a472, Version: 50.22 release
[0003.110] xhci0: 64 bytes context size, 32-bit DMA
[0003.150] usbus0: 5.0Gbps Super Speed USB v3.0
[0003.170] uhub0: <Nvidia XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
[0003.820] uhub0: 9 ports with 9 removable, self powered
[0004.890] nvhid: input device[vid:046d, pid:c52b] registered!
[0005.677] device_query_partition_size: failed to open partition sdmmc3_user:MSC !
[0005.685] MSC Partition not found
[0005.694] device_query_partition_size: failed to open partition sdmmc3_user:USP !
[0005.702] USP partition read failed!
[0005.705] blob_init: blob-partition USP header read failed
[0005.711] android_boot Unable to update recovery partition
[0005.716] kfs_getpartname: name = LNX
[0005.720] Loading kernel from LNX
[0005.745] Verifying boot image in OdmNonSecureSBK mode
[0005.789] kernel load address: 0x80080000, size: 482032 bytes
[0005.794] ramdisk load address: 0x84100000, size: 0 bytes
[0005.800] load kernel from storage
[0005.809] decompressor handler not found
[0005.829] Successfully loaded kernel and ramdisk images
[0005.835] load_bmp_blob: panelresolution=1080 type=3
[0006.335] display bmp image done
[0006.338] NCK carveout not present
[0006.342] Skipping dts_overrides
[0006.345] NCK carveout not present
[0006.348] shim_invoke: No NCT, Calling dts updates
[0006.359] Find /i2c@7000c000's alias i2c0
[0006.363] get eeprom at 1-a0, size 256, type 0
[0006.372] Find /i2c@7000c500's alias i2c2
[0006.376] get eeprom at 3-a0, size 256, type 0
[0006.380] get eeprom at 3-ae, size 256, type 0
[0006.385] pm_ids_update: Updating 1,a0, size 256, type 0
[0006.390] I2C slave not started
[0006.393] I2C write failed
[0006.396] Writing offset failed
[0006.399] eeprom_init: EEPROM read failed
[0006.402] pm_ids_update: eeprom init failed
[0006.407] pm_ids_update: Updating 3,a0, size 256, type 0
[0006.437] pm_ids_update: The pm board id is 3448-0002-400
[0006.443] Adding plugin-manager/ids/3448-0002-400=/i2c@7000c500:module@0x50
[0006.451] pm_ids_update: pm id update successful
[0006.456] pm_ids_update: Updating 3,ae, size 256, type 0
[0006.461] I2C slave not started
[0006.464] I2C write failed
[0006.467] Writing offset failed
[0006.470] eeprom_init: EEPROM read failed
[0006.473] pm_ids_update: eeprom init failed
[0006.504] eeprom_get_mac: EEPROM invalid MAC address (all 0xff)
[0006.510] shim_eeprom_update_mac:267: Failed to update 0 MAC address in DTB
[0006.518] eeprom_get_mac: EEPROM invalid MAC address (all 0xff)
[0006.524] shim_eeprom_update_mac:267: Failed to update 1 MAC address in DTB
[0006.532] updating /chosen/nvidia,ethernet-mac node 00:04:4b:e5:db:9d
[0006.538] Plugin Manager: Parse ODM data 0x00094000
[0006.548] shim_cmdline_install: /chosen/bootargs: root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0
[0006.563] Add serial number:142281901817204084ff as DT property
[0006.573] "bpmp" doesn't exist, creating
[0006.578] Updated bpmp info to DTB
[0006.583] Updated initrd info to DTB
[0006.587] "proc-board" doesn't exist, creating
[0006.592] Updated board info to DTB
[0006.595] "pmu-board" doesn't exist, creating
[0006.601] Updated board info to DTB
[0006.604] "display-board" doesn't exist, creating
[0006.610] Updated board info to DTB
[0006.613] "reset" doesn't exist, creating
[0006.618] Updated reset info to DTB
[0006.621] Cmdline: tegraid=21.1.2.0.0 ddr_die=4096M@2048M section=512M memtype=0 vpr_resize usb_port_owner_info=0 lane_owner_info=0 emc_max_dvfs=0 touch_id=0@63 video=tegrafb no_console_suspend=1 console=ttyS0,115200n8 debug_uartport=lsport,2 earlyprintk=uart8250-32bit,0x70006000 maxcpus=4 usbcore.old_scheme_first=1 lp0_vec=0x1000@0xff780000 core_edp_mv=1125 core_edp_ma=4000 tegra_fbmem=0x800000@0x92cb3000 is_hdmi_initialised=1
[0006.660] DTB cmdline: root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0
[0006.672] boot image cmdline: root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0
[0006.685] Updated bootarg info to DTB
[0006.689] Adding uuid 00000001644495851c0000000cff8440 to DT
[0006.695] Adding eks info 0 to DT
[0006.700] WARNING: Failed to pass NS DRAM ranges to TOS, err: -7
[0006.706] Updated memory info to DTB
[0006.715] set vdd_core voltage to 1125 mv
[0006.719] setting 'vdd-core' regulator to 1125000 micro volts
[0006.730] << HID poll thread is going down >>
[0006.750] could not find regulator
[0006.754] Found secure-pmc; disable BPMP


U-Boot 2016.07-gd917e08cec (Nov 05 2019 - 13:38:56 -0800)

TEGRA210
Model: NVIDIA P3450-Porg
Board: NVIDIA P3450-PORG
DRAM:  4 GiB
MMC:   Tegra SD/MMC: 0, Tegra SD/MMC: 1
Using default environment

In:    serial
Out:   serial
Err:   serial
Net:   No ethernet found.
MMC: no card present
** Bad device mmc 1 **
Hit any key to stop autoboot:  0
MMC: no card present
switch to partitions #0, OK
mmc0(part 0) is current device
Scanning mmc 0:1...
Found /boot/extlinux/extlinux.conf
Retrieving file: /boot/extlinux/extlinux.conf
733 bytes read in 82 ms (7.8 KiB/s)
L4T boot options
1:      primary kernel
Enter choice: 1:        primary kernel
Retrieving file: /boot/initrd
5562303 bytes read in 205 ms (25.9 MiB/s)
Retrieving file: /boot/Image
34179080 bytes read in 808 ms (40.3 MiB/s)
append: tegraid=21.1.2.0.0 ddr_die=4096M@2048M section=512M memtype=0 vpr_resize usb_port_owner_info=0 lane_owner_info=0 emc_max_dvfs=0 touch_id=0@63 video=tegrafb no_console_suspend=1 console=ttyS0,115200n8 debug_uartport=lsport,2 earlyprintk=uart8250-32bit,0x70006000 maxcpus=4 usbcore.old_scheme_first=1 lp0_vec=0x1000@0xff780000 core_edp_mv=1125 core_edp_ma=4000 tegra_fbmem=0x800000@0x92cb3000 is_hdmi_initialised=1  root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0    root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0 quiet
## Flattened Device Tree blob at 83100000
   Booting using the fdt blob at 0x83100000
   reserving fdt memory region: addr=80000000 size=20000
   Using Device Tree in place at 0000000083100000, end 0000000083177238

Starting kernel ...

<hit enter to activate fiq debugger>
[    1.109596] tegradc tegradc.1: dpd enable lookup fail:-19
[    1.259495] imx219 7-0010: imx219_board_setup: error during i2c read probe (-121)
[    1.259532] imx219 7-0010: board setup failed
[    1.283651] imx219 8-0010: imx219_board_setup: error during i2c read probe (-121)
[    1.283684] imx219 8-0010: board setup failed
[    1.702492] cgroup: cgroup2: unknown option "nsdelegate"
[    2.690289] using random self ethernet address
[    2.695403] using random host ethernet address
[    2.727723] using random self ethernet address
[    2.735154] using random host ethernet address
[    3.002605] Please complete system configuration setup on desktop to proceed...
[    3.129682] random: crng init done
[    3.133119] random: 7 urandom warning(s) missed due to ratelimiting
[   16.772880] Host read timeout at address 5458045c

Hi OpenNotes,

If you are using rel-32.3.

  1. Please disconnect your hdmi cable and put the micro usb cable on your flash port.
  2. Enable the uart console on your host to /dev/ttyACM0 with baud rate 115200.
  3. Finish the account configuration
  4. After the device can boot into system, please connect HDMI cable back and dump the dmesg.

BTW, is this a native HDMI monitor?

thanks for your reply,My monitor is a native HDMI device,i have finished the account configuration,and connect the HDMI cable but the monitor didn’t show anything.I login through the ssh and dump the dmesg as bellow:

[0000.243] [TegraBoot] (version 00.00.2018.01-l4t-7da7a580)
[0000.248] Processing in cold boot mode Bootloader 2
[0000.252] A02 Bootrom Patch rev = 1023
[0000.256] Power-up reason: pmc por
[0000.259] No Battery Present
[0000.262] pmic max77620 reset reason
[0000.265] pmic max77620 NVERC : 0x40
[0000.268] RamCode = 0
[0000.271] Platform has DDR4 type RAM
[0000.274] max77620 disabling SD1 Remote Sense
[0000.278] Setting DDR voltage to 1125mv
[0000.282] Serial Number of Pmic Max77663: 0x918f1
[0000.290] Entering ramdump check
[0000.293] Get RamDumpCarveOut = 0x0
[0000.296] RamDumpCarveOut=0x0,  RamDumperFlag=0xe59ff3f8
[0000.301] Last reboot was clean, booting normally!
[0000.306] Sdram initialization is successful
[0000.310] SecureOs Carveout Base=0x00000000ff800000 Size=0x00800000
[0000.316] Lp0 Carveout Base=0x00000000ff780000 Size=0x00001000
[0000.322] BpmpFw Carveout Base=0x00000000ff700000 Size=0x00080000
[0000.328] GSC1 Carveout Base=0x00000000ff600000 Size=0x00100000
[0000.334] GSC2 Carveout Base=0x00000000ff500000 Size=0x00100000
[0000.339] GSC4 Carveout Base=0x00000000ff400000 Size=0x00100000
[0000.345] GSC5 Carveout Base=0x00000000ff300000 Size=0x00100000
[0000.351] GSC3 Carveout Base=0x000000017f300000 Size=0x00d00000
[0000.367] RamDump Carveout Base=0x00000000ff280000 Size=0x00080000
[0000.373] Platform-DebugCarveout: 0
[0000.377] Nck Carveout Base=0x00000000ff080000 Size=0x00200000
[0000.382] Non secure mode, and RB not enabled.
[0000.399] Csd NumOfBlocks=0
[0000.408] Using GPT Primary to query partitions
[0000.413] Loading Tboot-CPU binary
[0000.419] Verifying TBC in OdmNonSecureSBK mode
[0000.429] Bootloader load address is 0xa0000000, entry address is 0xa0000258
[0000.436] Bootloader downloaded successfully.
[0000.440] Downloaded Tboot-CPU binary to 0xa0000258
[0000.445] MAX77620_GPIO5 configured
[0000.448] CPU power rail is up
[0000.451] CPU clock enabled
[0000.455] Performing RAM repair
[0000.458] Updating A64 Warmreset Address to 0xa00002e9
[0000.463] Loading NvTbootBootloaderDTB
[0000.477] Verifying NvTbootBootloaderDTB in OdmNonSecureSBK mode
[0000.542] Bootloader DTB Load Address: 0x83000000
[0000.547] Loading NvTbootKernelDTB
[0000.561] Verifying NvTbootKernelDTB in OdmNonSecureSBK mode
[0000.625] Kernel DTB Load Address: 0x83100000
[0000.631] Loading cboot binary
[0000.646] Verifying EBT in OdmNonSecureSBK mode
[0000.689] Bootloader load address is 0x92c00000, entry address is 0x92c00258
[0000.696] Bootloader downloaded successfully.
[0000.702] Using BFS PT to query partitions
[0000.706] Next binary entry address: 0x92c00258
[0000.711] BoardId: 3448
[0000.715] Overriding pmu board id with proc board id
[0000.720] Display board id is not available
[0000.736] Verifying SC7EntryFw in OdmNonSecureSBK mode
[0000.788] /bpmp deleted
[0000.790] SC7EntryFw header found loaded at 0xff700000
[0000.978] OVR2 PMIC
[0000.980] Bpmp FW successfully loaded
[0000.985] WB0 init successfully at 0xff780000
[0000.989] Set NvDecSticky Bits
[0000.993] GSC2 address ff53fffc value c0edbbcc
[0000.999] GSC MC Settings done
[0001.002] TOS Image length 53680
[0001.005]  Monitor size 53680
[0001.008]  OS size 0
[0001.014] Secure Os AES-CMAC Verification Success!
[0001.018] TOS image cipher info: plaintext
[0001.022] Loading and Validation of Secure OS Successful
[0001.038] SC7 Entry Firmware - 0xff700000, 0x4000
[0001.043] NvTbootPackSdramParams: start.
[0001.048] NvTbootPackSdramParams: done.
[0001.052] Tegraboot started after 172915 us
[0001.056] Basic modules init took 569564 us
[0001.060] Sec Bootdevice Read Time = 57 ms, Read Size = 2292 KB
[0001.065] Sec Bootdevice Write Time = 0 ms, Write Size = 0 KB
[0001.071] Next stage binary read took 11909 us
[0001.075] Carveout took -23608 us
[0001.078] CPU initialization took 346538 us
[0001.082] Total time taken by TegraBoot 904403 us

[0001.087] Starting CPU & Halting co-processor

64NOTICE:  BL31: v1.3(release):a28d87f09
NOTICE:  BL31: Built : 13:38:45, Nov  5 2019
ERROR:   Error initializing runtime service trusty_fast
[0001.209] RamCode = 0
[0001.214] LPDDR4 Training: Read DT: Number of tables = 2
[0001.219] EMC Training (SRC-freq: 204000; DST-freq: 1600000)
[0001.232] EMC Training Successful
[0001.235] 408000 not found in DVFS table
[0001.241] RamCode = 0
[0001.244] DT Write: emc-table@204000 succeeded
[0001.250] DT Write: emc-table@1600000 succeeded
[0001.254] LPDDR4 Training: Write DT: Number of tables = 2
[0001.293]
[0001.294] Debug Init done
[0001.297] Marked DTB cacheable
[0001.300] Bootloader DTB loaded at 0x83000000
[0001.305] Marked DTB cacheable
[0001.308] Kernel DTB loaded at 0x83100000
[0001.311] DeviceTree Init done
[0001.323] Pinmux applied successfully
[0001.327] gicd_base: 0x50041000
[0001.331] gicc_base: 0x50042000
[0001.334] Interrupts Init done
[0001.338] Using base:0x60005090 & irq:208 for tick-timer
[0001.343] Using base:0x60005098 for delay-timer
[0001.348] platform_init_timer: DONE
[0001.351] Timer(tick) Init done
[0001.355] osc freq = 38400 khz
[0001.359]
[0001.360] welcome to cboot
[0001.362]
[0001.364] Cboot Version: 00.00.2018.01-t210-21e03500
[0001.369] calling constructors
[0001.372] initializing heap
[0001.374] initializing threads
[0001.377] initializing timers
[0001.380] creating bootstrap completion thread
[0001.384] top of bootstrap2()
[0001.387] CPU: ARM Cortex A57
[0001.390] CPU: MIDR: 0x411FD071, MPIDR: 0x80000000
[0001.395] initializing platform
[0001.398] Scratch reg 37 & 271 initial value set..
[0001.404] cboot:secure-pmc present
[0001.454] config for ddr50 mode completed
[0001.458] sdmmc bdev is already initialized
[0001.462] Enable APE clock
[0001.465] Un-powergate APE partition
[0001.468] of_register: registering tegra_udc to of_hal
[0001.473] of_register: registering tegra_udc to of_hal
[0001.478] of_register: registering inv20628-driver to of_hal
[0001.484] of_register: registering ads1015-driver to of_hal
[0001.489] of_register: registering lp8557-bl-driver to of_hal
[0001.495] of_register: registering bq2419x_charger to of_hal
[0001.501] of_register: registering cpc to of_hal
[0001.505] of_register: registering bq27441_fuel_gauge to of_hal
[0001.517] gpio framework initialized
[0001.520] of_register: registering tca9539_gpio to of_hal
[0001.525] of_register: registering tca9539_gpio to of_hal
[0001.531] of_register: registering i2c_bus_driver to of_hal
[0001.536] of_register: registering i2c_bus_driver to of_hal
[0001.542] of_register: registering i2c_bus_driver to of_hal
[0001.548] of_register: registering i2c_bus_driver to of_hal
[0001.553] pmic framework initialized
[0001.557] of_register: registering max77620_pmic to of_hal
[0001.562] regulator framework initialized
[0001.566] of_register: registering tps65132_bl_driver to of_hal
[0001.572] initializing target
[0001.578] gpio_driver_register: register 'tegra_gpio_driver' driver
[0001.586] fixed regulator driver initialized
[0001.603] initializing OF layer
[0001.606] NCK carveout not present
[0001.609] Skipping dts_overrides
[0001.614] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0001.630] I2C Bus Init done
[0001.633] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0001.643] I2C Bus Init done
[0001.646] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0001.656] I2C Bus Init done
[0001.658] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0001.669] I2C Bus Init done
[0001.671] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0001.682] I2C Bus Init done
[0001.684] of_children_init: Ops found for compatible string maxim,max77620
[0001.694] max77620_init using irq 118
[0001.699] register 'maxim,max77620' pmic
[0001.704] gpio_driver_register: register 'max77620-gpio' driver
[0001.710] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0001.720] I2C Bus Init done
[0001.724] NCK carveout not present
[0001.727] shim_invoke: No NCT, Calling dts updates
[0001.738] Find /i2c@7000c000's alias i2c0
[0001.742] get eeprom at 1-a0, size 256, type 0
[0001.751] Find /i2c@7000c500's alias i2c2
[0001.755] get eeprom at 3-a0, size 256, type 0
[0001.759] get eeprom at 3-ae, size 256, type 0
[0001.764] pm_ids_update: Updating 1,a0, size 256, type 0
[0001.769] I2C slave not started
[0001.772] I2C write failed
[0001.774] Writing offset failed
[0001.777] eeprom_init: EEPROM read failed
[0001.781] pm_ids_update: eeprom init failed
[0001.786] pm_ids_update: Updating 3,a0, size 256, type 0
[0001.816] pm_ids_update: The pm board id is 3448-0002-400
[0001.822] Adding plugin-manager/ids/3448-0002-400=/i2c@7000c500:module@0x50
[0001.830] pm_ids_update: pm id update successful
[0001.834] pm_ids_update: Updating 3,ae, size 256, type 0
[0001.840] I2C slave not started
[0001.843] I2C write failed
[0001.845] Writing offset failed
[0001.848] eeprom_init: EEPROM read failed
[0001.852] pm_ids_update: eeprom init failed
[0001.883] eeprom_get_mac: EEPROM invalid MAC address (all 0xff)
[0001.888] shim_eeprom_update_mac:267: Failed to update 0 MAC address in DTB
[0001.897] eeprom_get_mac: EEPROM invalid MAC address (all 0xff)
[0001.902] shim_eeprom_update_mac:267: Failed to update 1 MAC address in DTB
[0001.911] updating /chosen/nvidia,ethernet-mac node 00:04:4b:e5:db:9d
[0001.917] Plugin Manager: Parse ODM data 0x00094000
[0001.927] shim_cmdline_install: /chosen/bootargs: root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0
[0001.949] Find /i2c@7000c000's alias i2c0
[0001.952] get eeprom at 1-a0, size 256, type 0
[0001.961] Find /i2c@7000c500's alias i2c2
[0001.965] get eeprom at 3-a0, size 256, type 0
[0001.969] get eeprom at 3-ae, size 256, type 0
[0001.974] pm_ids_update: Updating 1,a0, size 256, type 0
[0001.979] I2C slave not started
[0001.982] I2C write failed
[0001.985] Writing offset failed
[0001.988] eeprom_init: EEPROM read failed
[0001.992] pm_ids_update: eeprom init failed
[0001.996] pm_ids_update: Updating 3,a0, size 256, type 0
[0002.026] pm_ids_update: The pm board id is 3448-0002-400
[0002.032] Adding plugin-manager/ids/3448-0002-400=/i2c@7000c500:module@0x50
[0002.039] pm_ids_update: pm id update successful
[0002.044] pm_ids_update: Updating 3,ae, size 256, type 0
[0002.049] I2C slave not started
[0002.052] I2C write failed
[0002.055] Writing offset failed
[0002.058] eeprom_init: EEPROM read failed
[0002.062] pm_ids_update: eeprom init failed
[0002.092] Chip UID is 00000001644495851c0000000cff8440
[0002.097] Add serial number:142281901817204084ff as DT property
[0002.105] Applying platform configs
[0002.112] platform-init is not present. Skipping
[0002.116] calling apps_init()
[0002.132] Found 14 GPT partitions in "sdmmc3_user"
[0002.137] Proceeding to Cold Boot
[0002.140] starting app android_boot_app
[0002.144] Device state: unlocked
[0002.147] display console init
[0002.155] could not find regulator
[0002.159] hdmi cable connected
[0002.174] edid read success
[0002.1[0002.193] DT entry for leds-pwm not found
89] edid read success
[0002.199] width = 640, height = 480, frequency = 25174825
[0002.205] width = 640, height = 480, frequency = 25174825
[0002.210] width = 640, height = 480, frequency = 25174825
[0002.215] width = 640, height = 480, frequency = 25174825
[0002.221] width = 1920, height = 1080, frequency = 148500000
[0002.226] width = 1920, height = 1080, frequency = 174500000
[0002.232] width = 720, height = 480, frequency = 27000000
[0002.237] width = 1920, height = 1080, frequency = 148351648
[0002.243] width = 1920, height = 1080, frequency = 148351648
[0002.249] width = 1280, height = 720, frequency = 74175824
[0002.254] width = 1280, height = 720, frequency = 74175824
[0002.260] width = 720, height = 480, frequency = 26973026
[0002.265] width = 720, height = 576, frequency = 26973026
[0002.270] width = 720, height = 480, frequency = 26973026
[0002.276] width = 720, height = 576, frequency = 26973026
[0002.281] width = 640, height = 480, frequency = 25174825
[0002.286] Best mode Width = 1920, Height = 1080, freq = 148351648
[0002.294] tmds-config node not found
[0002.298] pmc_set_io_pad_voltage: Error -2 retrieving platform-io-pad-voltagepropsetting 'avdd-io-hdmi-dp' regulator to 1050000 micro volts
[0002.313] setting 'vdd-1v8' regulator to 1800000 micro volts
[0002.321] could not find regulator
[0002.324] could not find regulator
[0002.327] could not find regulator
[0002.356] using default cmu settings
[0002.359] dc_hdmi_enable, starting HDMI initialisation
[0002.365] dc_hdmi_enable, HDMI initialisation complete
[0002.370] list and configure display window
[0002.379] display console init completed
[0002.390] subnode volume_up is not found !
[0002.394] subnode back is not found !
[0002.398] subnode volume_down is not found !
[0002.402] subnode menu is not found !
[0002.405] Gpio keyboard init success
[0002.452] found decompressor handler: lz4-legacy
[0002.466] decompressing blob (type 1)...
[0002.502] load_bmp_blob: panelresolution=1080 type=3
[0002.551] decompressor handler not found
[0002.555] load_firmware_blob: Firmware blob loaded, entries=2
[0002.560] se_aes_verify_sbk_clear: Error
[0002.564] bl_battery_charging: connected to external power supply
[0002.572] xusb is supported
[0002.578] error while finding nvidia,portmap
[0002.583] could not find regulator
[0003.086] xusb blob version 0 size 124416
[0003.090] firmware size 124416
[0003.095] Firmware timestamp: 0x5cd2a472, Version: 50.22 release
[0003.110] xhci0: 64 bytes context size, 32-bit DMA
[0003.150] usbus0: 5.0Gbps Super Speed USB v3.0
[0003.170] uhub0: <Nvidia XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
[0003.820] uhub0: 9 ports with 9 removable, self powered
[0004.890] nvhid: input device[vid:046d, pid:c52b] registered!
[0005.677] device_query_partition_size: failed to open partition sdmmc3_user:MSC !
[0005.685] MSC Partition not found
[0005.694] device_query_partition_size: failed to open partition sdmmc3_user:USP !
[0005.702] USP partition read failed!
[0005.705] blob_init: blob-partition USP header read failed
[0005.711] android_boot Unable to update recovery partition
[0005.716] kfs_getpartname: name = LNX
[0005.720] Loading kernel from LNX
[0005.745] Verifying boot image in OdmNonSecureSBK mode
[0005.789] kernel load address: 0x80080000, size: 482032 bytes
[0005.794] ramdisk load address: 0x84100000, size: 0 bytes
[0005.800] load kernel from storage
[0005.809] decompressor handler not found
[0005.829] Successfully loaded kernel and ramdisk images
[0005.835] load_bmp_blob: panelresolution=1080 type=3
[0006.335] display bmp image done
[0006.338] NCK carveout not present
[0006.342] Skipping dts_overrides
[0006.345] NCK carveout not present
[0006.348] shim_invoke: No NCT, Calling dts updates
[0006.359] Find /i2c@7000c000's alias i2c0
[0006.363] get eeprom at 1-a0, size 256, type 0
[0006.372] Find /i2c@7000c500's alias i2c2
[0006.376] get eeprom at 3-a0, size 256, type 0
[0006.380] get eeprom at 3-ae, size 256, type 0
[0006.385] pm_ids_update: Updating 1,a0, size 256, type 0
[0006.390] I2C slave not started
[0006.393] I2C write failed
[0006.396] Writing offset failed
[0006.399] eeprom_init: EEPROM read failed
[0006.402] pm_ids_update: eeprom init failed
[0006.407] pm_ids_update: Updating 3,a0, size 256, type 0
[0006.437] pm_ids_update: The pm board id is 3448-0002-400
[0006.443] Adding plugin-manager/ids/3448-0002-400=/i2c@7000c500:module@0x50
[0006.451] pm_ids_update: pm id update successful
[0006.456] pm_ids_update: Updating 3,ae, size 256, type 0
[0006.461] I2C slave not started
[0006.464] I2C write failed
[0006.467] Writing offset failed
[0006.470] eeprom_init: EEPROM read failed
[0006.473] pm_ids_update: eeprom init failed
[0006.504] eeprom_get_mac: EEPROM invalid MAC address (all 0xff)
[0006.510] shim_eeprom_update_mac:267: Failed to update 0 MAC address in DTB
[0006.518] eeprom_get_mac: EEPROM invalid MAC address (all 0xff)
[0006.524] shim_eeprom_update_mac:267: Failed to update 1 MAC address in DTB
[0006.532] updating /chosen/nvidia,ethernet-mac node 00:04:4b:e5:db:9d
[0006.538] Plugin Manager: Parse ODM data 0x00094000
[0006.548] shim_cmdline_install: /chosen/bootargs: root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0
[0006.563] Add serial number:142281901817204084ff as DT property
[0006.573] "bpmp" doesn't exist, creating
[0006.578] Updated bpmp info to DTB
[0006.583] Updated initrd info to DTB
[0006.587] "proc-board" doesn't exist, creating
[0006.592] Updated board info to DTB
[0006.595] "pmu-board" doesn't exist, creating
[0006.601] Updated board info to DTB
[0006.604] "display-board" doesn't exist, creating
[0006.610] Updated board info to DTB
[0006.613] "reset" doesn't exist, creating
[0006.618] Updated reset info to DTB
[0006.621] Cmdline: tegraid=21.1.2.0.0 ddr_die=4096M@2048M section=512M memtype=0 vpr_resize usb_port_owner_info=0 lane_owner_info=0 emc_max_dvfs=0 touch_id=0@63 video=tegrafb no_console_suspend=1 console=ttyS0,115200n8 debug_uartport=lsport,2 earlyprintk=uart8250-32bit,0x70006000 maxcpus=4 usbcore.old_scheme_first=1 lp0_vec=0x1000@0xff780000 core_edp_mv=1125 core_edp_ma=4000 tegra_fbmem=0x800000@0x92cb3000 is_hdmi_initialised=1
[0006.660] DTB cmdline: root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0
[0006.672] boot image cmdline: root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0
[0006.685] Updated bootarg info to DTB
[0006.689] Adding uuid 00000001644495851c0000000cff8440 to DT
[0006.695] Adding eks info 0 to DT
[0006.700] WARNING: Failed to pass NS DRAM ranges to TOS, err: -7
[0006.706] Updated memory info to DTB
[0006.715] set vdd_core voltage to 1125 mv
[0006.719] setting 'vdd-core' regulator to 1125000 micro volts
[0006.730] << HID poll thread is going down >>
[0006.750] could not find regulator
[0006.754] Found secure-pmc; disable BPMP


U-Boot 2016.07-gd917e08cec (Nov 05 2019 - 13:38:56 -0800)

TEGRA210
Model: NVIDIA P3450-Porg
Board: NVIDIA P3450-PORG
DRAM:  4 GiB
MMC:   Tegra SD/MMC: 0, Tegra SD/MMC: 1
Using default environment

In:    serial
Out:   serial
Err:   serial
Net:   No ethernet found.
MMC: no card present
** Bad device mmc 1 **
Hit any key to stop autoboot:  0
MMC: no card present
switch to partitions #0, OK
mmc0(part 0) is current device
Scanning mmc 0:1...
Found /boot/extlinux/extlinux.conf
Retrieving file: /boot/extlinux/extlinux.conf
733 bytes read in 82 ms (7.8 KiB/s)
L4T boot options
1:      primary kernel
Enter choice: 1:        primary kernel
Retrieving file: /boot/initrd
5562303 bytes read in 205 ms (25.9 MiB/s)
Retrieving file: /boot/Image
34179080 bytes read in 808 ms (40.3 MiB/s)
append: tegraid=21.1.2.0.0 ddr_die=4096M@2048M section=512M memtype=0 vpr_resize usb_port_owner_info=0 lane_owner_info=0 emc_max_dvfs=0 touch_id=0@63 video=tegrafb no_console_suspend=1 console=ttyS0,115200n8 debug_uartport=lsport,2 earlyprintk=uart8250-32bit,0x70006000 maxcpus=4 usbcore.old_scheme_first=1 lp0_vec=0x1000@0xff780000 core_edp_mv=1125 core_edp_ma=4000 tegra_fbmem=0x800000@0x92cb3000 is_hdmi_initialised=1  root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0    root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0 quiet
## Flattened Device Tree blob at 83100000
   Booting using the fdt blob at 0x83100000
   reserving fdt memory region: addr=80000000 size=20000
   Using Device Tree in place at 0000000083100000, end 0000000083177238

Starting kernel ...

<hit enter to activate fiq debugger>
[    1.109596] tegradc tegradc.1: dpd enable lookup fail:-19
[    1.259495] imx219 7-0010: imx219_board_setup: error during i2c read probe (-121)
[    1.259532] imx219 7-0010: board setup failed
[    1.283651] imx219 8-0010: imx219_board_setup: error during i2c read probe (-121)
[    1.283684] imx219 8-0010: board setup failed
[    1.702492] cgroup: cgroup2: unknown option "nsdelegate"
[    2.690289] using random self ethernet address
[    2.695403] using random host ethernet address
[    2.727723] using random self ethernet address
[    2.735154] using random host ethernet address
[    3.002605] Please complete system configuration setup on desktop to proceed...
[    3.129682] random: crng init done
[    3.133119] random: 7 urandom warning(s) missed due to ratelimiting
[   16.772880] Host read timeout at address 5458045c

Hi,

It is just a first debug process to check your log so HDMI is expected to be still not working.
However, the log seems not enough.

Please also try to hotplug the HDMI cable once and show us the dmesg. Thanks.

[  160.938667] tegradc tegradc.0: read_edid_into_buffer: extension_blocks = 1, max_ext_blocks = 3
[  160.954653] tegradc tegradc.0: hdmi_recheck_edid: read_edid_into_buffer() returned 256
[  160.954678] tegradc tegradc.0: old edid len = 256
[  160.954701] tegradc tegradc.0: hdmi: No EDID change after HPD bounce, taking no action
[  161.314899] tegradc tegradc.0: read_edid_into_buffer: extension_blocks = 1, max_ext_blocks = 3
[  161.331859] tegradc tegradc.0: hdmi_recheck_edid: read_edid_into_buffer() returned 256
[  161.331912] tegradc tegradc.0: old edid len = 256
[  161.331958] tegradc tegradc.0: hdmi: No EDID change after HPD bounce, taking no action
[  161.705284] extcon-disp-state extcon:disp-state: cable 47 state 0
[  161.705299] Extcon AUX1(HDMI) disable
[  161.715160] tegradc tegradc.0: blank - powerdown
[  161.715287] extcon-disp-state extcon:disp-state: cable 40 state 0
[  161.715290] Extcon HDMI: HPD disabled
[  161.715352] tegradc tegradc.0: hdmi: unplugged
[  161.742613] tegradc tegradc.0: blank - powerdown
[  161.742626] tegradc tegradc.0: unblank
[  161.742653] tegradc tegradc.0: unblank
[  161.742662] tegradc tegradc.1: blank - powerdown
[  165.223754] tegradc tegradc.0: blank - powerdown
[  165.223811] Host read timeout at address 5458045c
[  165.223815] tegradc tegradc.0: unblank
[  165.252984] tegradc tegradc.0: nominal-pclk:148500000 parent:148500000 div:1.0 pclk:148500000 147015000~161865000
[  165.253082] tegradc tegradc.0: hdmi: tmds rate:148500K prod-setting:prod_c_hdmi_75m_150m
[  165.254112] tegradc tegradc.0: hdmi: get RGB quant from EDID.
[  165.254118] tegradc tegradc.0: hdmi: get YCC quant from EDID.
[  165.295682] extcon-disp-state extcon:disp-state: cable 47 state 1
[  165.295687] Extcon AUX1(HDMI) enable
[  165.300840] extcon-disp-state extcon:disp-state: cable 40 state 1
[  165.300843] Extcon HDMI: HPD enabled
[  165.303857] tegradc tegradc.0: hdmi: plugged
[  165.309149] tegradc tegradc.0: blank - powerdown
[  165.371696] extcon-disp-state extcon:disp-state: cable 47 state 0
[  165.371706] Extcon AUX1(HDMI) disable
[  165.391728] tegradc tegradc.0: unblank
[  165.403795] tegradc tegradc.0: nominal-pclk:148500000 parent:148500000 div:1.0 pclk:148500000 147015000~161865000
[  165.403879] tegradc tegradc.0: hdmi: tmds rate:148500K prod-setting:prod_c_hdmi_75m_150m
[  165.404910] tegradc tegradc.0: hdmi: get RGB quant from EDID.
[  165.404917] tegradc tegradc.0: hdmi: get YCC quant from EDID.
[  165.440391] extcon-disp-state extcon:disp-state: cable 47 state 1
[  165.440398] Extcon AUX1(HDMI) enable
[  165.443280] tegradc tegradc.0: unblank
[  165.443288] tegradc tegradc.1: blank - powerdown

Hi OpenNotes,

From the log below, the driver is able to read the display mode (1920x1080) and tries to unblank your monitor. Are you able to see the power indicator of your monitor goes up (even though it may show “no signal” on screen)? Could you also try with different HDMI cable and monitor to test?

Also, are you using a developer kit? or custom carrier board?

[  165.303857] tegradc tegradc.0: hdmi: plugged
[  165.309149] tegradc tegradc.0: blank - powerdown
[  165.371696] extcon-disp-state extcon:disp-state: cable 47 state 0
[  165.371706] Extcon AUX1(HDMI) disable
[  165.391728] tegradc tegradc.0: unblank
[  165.403795] tegradc tegradc.0: nominal-pclk:148500000 parent:148500000 div:1.0 pclk:148500000 147015000~161865000
[  165.403879] tegradc tegradc.0: hdmi: tmds rate:148500K prod-setting:prod_c_hdmi_75m_150m
[  165.404910] tegradc tegradc.0: hdmi: get RGB quant from EDID.
[  165.404917] tegradc tegradc.0: hdmi: get YCC quant from EDID.
[  165.440391] extcon-disp-state extcon:disp-state: cable 47 state 1
[  165.440398] Extcon AUX1(HDMI) enable
[  165.443280] tegradc tegradc.0: unblank

Hi,@WayneWWW yes the monitor’s power led is lighting.I have checked my schematics ,i have a mistake in the HDMI connector ,i used a type C connector but i assigned the signals of Type A,so one of the differential signal is keeps gnd.

Ok, does it work fine after fix the signal?

It’s hardware,i will fix it in my next version.