Hi all, HW: QCS6490 custom board, close to RB3Gen2. SW: Ubuntu 24.04.5 kernel 6.8.0-1084.89.
I'm using DRM/MSM with the eDP interface set to maximum debug output. Everything looks great, with no error messages at all. However, the screen is blank. A few details. On the same hardware modifications with a DSI interface, everything works flawlessly. On hardware with an eDP interface running the QCLinux version (DRM/SDE), everything works (SDE source code is available). I've spent 5 months trying to find the problem, so far without success. There's a lot of debugging information, and I didn't include it in this post. If necessary, I can provide it. Conclusion: I'm missing some small detail. An aggravating factor is that I don't have access to the documentation for HW. Ultimately, I need advice on which part of DRM might be the problem. Thanks, Dmitriy Antonets
