From: <antonets@frii.com>
To: <dri-devel@lists.freedesktop.org>
Subject: drm/msm eDP problem
Date: Mon, 12 Oct 2026 12:15:54 -0600 [thread overview]
Message-ID: <009601dd5a75$e3b92ca0$ab2b85e0$@frii.com> (raw)
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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
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reply other threads:[~2026-10-13 7:53 UTC|newest]
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