Hello, according to your instructions, I followed the content of the community forum to try to achieve the HDMI interface that can open AGX orin, but the puzzled thing is that the operation did not achieve the effect I wanted. Can you give me any specific hints to get me there?
Hi,
apply the [orin-hdmi-support-pinmux.patch]
use the new hdmi dcb file '[tegra234-dcb-p3701-0000-a02-p3737-0000-a01-hdmi-4-ga5.0.2.dtsi]
apply the kernel hdmi hotplug patch [0001-orin-hdmi-hotplug-support-kernel-dts.patch]
rebuilt the kernel dtb and “reflash the image” //Note : make sure ‘reflash’ the image, no substitute dtb in exlinux!!
I differ from the above in that I am running the script file, and I say that the words a04 in the script file are removed
This question has been bothering me for a long time, and I look forward to hearing from you.
Sorry I misunderstood you
After I changed the dts file, I did not manually generate the corresponding dtb file, but used the flash.su, and after running it, I found that the HDMI pin can already provide 5v voltage, so I think that the content I changed has been burned into the kernel, and the reason why the HDMI cannot run is because some operations are missing.
Yes, I encountered some errors in the process of manually generating DTB with dtc -I dts -O dtb -o, and could not generate dtb files, so I chose to compile directly with flash, and got a part of the effect I needed, I don’t understand the specific compilation process, I judge that the script file you provided has the relevant operations of automatically generating dtb, I don’t know if my understanding is correct
The error encountered in generating dtb is about syntax, but I found no relevant syntax error when I located to the specific location, and the specific reason is still being found, which is why I directly chose to compile
I’d like to confirm if the new DCB file and the patch you provided have done the changes to the ORIN regarding the HDMI pins, and if there is anything else I need to do to complete the changes to convert the DP pins to the HDMI pins
Sorry I don’t know enough about this, in my understanding, this log should be connected to HDMI and output log in the display, but the display can’t work now, so I don’t know how to observe the status of the display. Not sure if you can provide a patch on changing pins and multiplexing, I’d like to check if there are any errors in my changes。
Thank you very much for your guidance
Also, I already applied all the patches you need on that post. The most reason that it cannot take effect is because users didn’t apply them correctly.
Thus, dump the log and use the console to check things first.