Hi,
In L4T 35.4.1 I found that HDMI is not supporting in 4K mode. I have made below changes in L4T35.2.1 and it was working, but if I make these changes, board is not booting to desktop
Do I need any changes to get 4K mode work?
You already asked the same question on Orin NX before.
The logic of the software patch on Orin AGX and Orin NX are totally same…
We did below change in Orin NX and HDMI is working but we do not have an option in AGX Orin, can you specify what dtb and pinmux needs to be used if HDMI to be enabled?
here in AGX Orin we used flash script with config file as below:
sudo ./flash.sh jetson-agx-orin-devkit mmcblk0p1
Edited the below mentioned file:
/Linux_for_Tegra/jetson-orin-nano-devkit.conf
Change PINMUX_CONFIG,PMC_CONFIG,DTB_FILE
Change below lines
DEFAULT_EMC_FUSE=“0”;
PINMUX_CONFIG=“tegra234-mb1-bct-pinmux-p3767-dp-a03.dtsi”;
PMC_CONFIG=“tegra234-mb1-bct-padvoltage-p3767-dp-a03.dtsi”;
BPFDTB_FILE=“tegra234-bpmp-3767-0000-a02-3509-a02.dtb”;
DTB_FILE=“tegra234-p3767-0000-p3768-0000-a0.dtb”;
TBCDTB_FILE=“${DTB_FILE}”;
EMMC_CFG=“flash_t234_qspi_sd.xml”;
to
DEFAULT_EMC_FUSE=“0”;
PINMUX_CONFIG=“tegra234-mb1-bct-pinmux-p3767-hdmi-a03.dtsi”;
PMC_CONFIG=“tegra234-mb1-bct-padvoltage-p3767-hdmi-a03.dtsi”;
BPFDTB_FILE=“tegra234-bpmp-3767-0000-a02-3509-a02.dtb”;
DTB_FILE=“tegra234-p3767-0000-p3509-a02.dtb”;
TBCDTB_FILE=“${DTB_FILE}”;
EMMC_CFG=“flash_t234_qspi_sd.xml”;
After the changes are done and saved, Flash the board.
Hi,
I have flashed the BSP with default pinmux and dtb and HDMI works with 4k now. looks like no additional change is required for HDMI to work in 4K
No matter AGX Orin or Orin Nano/NX… The key point is just you have to configure the dcb image mentioned in below to HDMI mode.
Default configuration on Orin AGX and Orin Nano are both DP. DP mode can still output HDMI signal but it cannot work stable for 4k.
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