Public bug reported:
Hi,
I'm running Ubuntu 24.04. After a recent kernel upgrade to
6.14.0-28.28~24.04.1 I've noticed that after the system is resumed from
hibernate, the display doesn't go into standby. It goes there briefly,
but then immediately wakes up showing black screen.
In the logs I can see the following message every time this is
attempted:
[drm:parse_edid_cea_dmub.constprop.0 [amdgpu]] *ERROR* EDID CEA parser
failed
I've checked old logs, this message never appeared before. Downgrading
to 6.14.0-27.27~24.04.1 appears to fix the problem.
** Affects: kdump-tools (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2121449
Title:
Unable to put display on standby after resuming from hibernate
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