From: Brandon Nielsen <nielsenb@jetfuse.net>
To: pjones@redhat.com
Cc: linux-fbdev@vger.kernel.org
Subject: [Bug Report] Desktop monitor sleep regression
Date: Mon, 6 Dec 2021 18:21:05 -0600 [thread overview]
Message-ID: <8a27c986-4767-bd29-2073-6c4ffed49bba@jetfuse.net> (raw)
Monitors no longer sleep properly on my system (dual monitor connected
via DP->DVI, amdgpu, x86_64). The monitors slept properly on 5.14, but
stopped during the 5.15 series. I have also filed this bug on the kernel
bugzilla[0] and downstream[1].
I have performed a bisect, first "bad" commit to master is
55285e21f04517939480966164a33898c34b2af2[1], the same change made it
into the 5.15 branch as e3b39825ed0813f787cb3ebdc5ecaa5131623647. I have
verified the issue exists in latest master
(a51e3ac43ddbad891c2b1a4f3aa52371d6939570).
Steps to reproduce:
1. Boot system (Fedora Workstation 35 in this case)
2. Log in
3. Lock screen (after a few seconds, monitors will enter power save
"sleep" state with backlight off)
4. Wait (usually no more than 30 seconds, sometimes up to a few minutes)
5. Observe monitor leaving "sleep" state (backlight comes back on),
but nothing is displayed
[0] - https://bugzilla.kernel.org/show_bug.cgi?id=215203
[1] - https://bugzilla.redhat.com/show_bug.cgi?id=2028613
next reply other threads:[~2021-12-07 0:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-07 0:21 Brandon Nielsen [this message]
2021-12-07 7:20 ` Thorsten Leemhuis
2021-12-17 14:46 ` Thorsten Leemhuis
2021-12-17 14:52 ` Imre Deak
2021-12-17 17:19 ` Thorsten Leemhuis
2021-12-07 8:59 ` Geert Uytterhoeven
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