Custom board HDMI hotplug detect(HPD) did't work

Hi @YasirHu

昨天剛好有另外一組用戶驗證完我們的patch.

在這邊提醒幾點. 我們有發現每個客人/用戶燒錄的kernel dtb還有pinmux dtsi似乎都不太一樣. 有些人kernel 用0004版本, pinmux 用0000版本. 有些pinmux是使用a04版本, kernel反而用0000版本

所以請確認一下flash log. 你patch過的dtb/ dtsi確實都是你燒進去的那份

另外, 如果你有AGX Xavier devkit底板. 你也可以用它測試. 我們先前有在這塊底板測試過Orin HDMI.


We just had another customer validated the patches yesterday.

And some points to remind here. We notice there are multiple of combinations got flashed to the board.

For example, some user is using a04 kernel dtb and a04 pinmux. But in your case, both of pinmux and kernel dtb got flahsed to your board are both “0000” files.

Thus, please make sure you really patched to the correct file. But not directly flashing without check.

Also, if you have Xavier AGX devkit, you can put the module on it and test too. We’ve validated that before.