07-26-2021, 08:35 PM
Megi has some notes about how to debug this in a semi-recent post:
https://xnux.eu/log/#033
Quote:There are still some HDMI issues some people keep reporting, that manifest themselves by anx7688 firmware not getting past „DP status = 0×03“ (it should go from 0 all the way to 6 normally). When this happens it's caused by HDMI controller inside the SoC using incorrect clock frequency, and anx7688 fails to acquire the HDMI signal from the SoC. It should be easy to fix, but I have trouble reproducing it with my kernel and userspace, so I can't identify the root of the problem, yet.
https://xnux.eu/log/#033
