Jetson T5000 HDMI2, HDMI3 没有显示

Robotics & Edge Computing Jetson & Embedded Systems Jetson Thor
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1
  1. 自己做的底板
  2. jetson r38.2.1
  3. 4个HDMI，HDMI0 和 HDMI1 可以显示，HDMI2 和 HDMI3 不能显示
  4. HPD PIN 切换成了 GPIO，DPAUX 切换成了 I2C ，参考于 Jetson Thor Adaptation and Bring-Up — NVIDIA Jetson Linux Developer Guide
  5. DCB 已更新 tegra264-p4071-0080-p3834-0008-dcb.dtsi
=== Reading DCB blob ===
=== Chip Variant T26X ===

########## Tegra DCB BLOB ###############
########### Display Devices #############
Display Devices::
        Display Devices : [0]
                Type               : [TMDS]
                CCB                : [0]
                Heads              : 0:[Y] 1:[Y]
                Sor                : [0 ]
                HDMI capable       : [1]
                Connector          : [0]
                Bus                : [0]
        Display Devices : [1]
                Type               : [TMDS]
                CCB                : [1]
                Heads              : 0:[Y] 1:[Y]
                Sor                : [0 ]
                HDMI capable       : [1]
                Connector          : [1]
                Bus                : [1]
        Display Devices : [2]
                Type               : [TMDS]
                CCB                : [2]
                Heads              : 0:[Y] 1:[Y]
                Sor                : [0 ]
                HDMI capable       : [1]
                Connector          : [2]
                Bus                : [2]
        Display Devices : [3]
                Type               : [TMDS]
                CCB                : [3]
                Heads              : 0:[Y] 1:[Y]
                Sor                : [0 ]
                HDMI capable       : [1]
                Connector          : [3]
                Bus                : [3]
############### CCB Entries ###############
CCB::
*CCB entries that have both I2C and AUX ports unused (value = 31) are not displayed
        CCB Index : 0
                I2C Port           : [6]
                AUX Port           : [0]
        CCB Index : 1
                I2C Port           : [10]
                AUX Port           : [1]
        CCB Index : 2
                I2C Port           : [4]
                AUX Port           : [2]
        CCB Index : 3
                I2C Port           : [8]
                AUX Port           : [3]
########### Connector entries #############
Connectors::
        Connector Index : 0x0
                Type               : [HDMI]
                Hotplug            : A:[Y]
        Connector Index : 0x1
                Type               : [HDMI]
                Hotplug            : A:[Y]
        Connector Index : 0x2
                Type               : [HDMI]
                Hotplug            : A:[Y]
        Connector Index : 0x3
                Type               : [HDMI]
                Hotplug            : A:[Y]

################# ******* #################
  1. hotplug
        display@8808c00000 {
                status = "okay";
                os_gpio_hotplug_a = <&gpio_main TEGRA264_MAIN_GPIO(F, 3) GPIO_ACTIVE_LOW>;
                os_gpio_hotplug_b = <&gpio_main TEGRA264_MAIN_GPIO(F, 4) GPIO_ACTIVE_LOW>;
                os_gpio_hotplug_c = <&gpio_main TEGRA264_MAIN_GPIO(F, 5) GPIO_ACTIVE_LOW>;
                os_gpio_hotplug_d = <&gpio_main TEGRA264_MAIN_GPIO(F, 6) GPIO_ACTIVE_LOW>;
        };
3

Currently the dcb tool in rel38.2.1 could not switch the mode for HDMI2 and HDMI3.

Please wait for next release.

5

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