** Changed in: linux (Ubuntu Mantic)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/2049027
Title:
The display becomes frozen after some time when a HDMI device is
connected.
Status in linux package in Ubuntu:
Invalid
Status in linux-signed-hwe-6.5 package in Ubuntu:
Invalid
Status in linux source package in Mantic:
Fix Committed
Status in linux-signed-hwe-6.5 source package in Mantic:
Invalid
Bug description:
SRU Justification:
[Impact]
Multiple users have reported frozen displays when external HDMI device
is connected on systems with intel graphics chipsets.
[Fix]
* backport 49e0a85ec344: "drm/i915/dmc: Don't enable any pipe DMC events"
from 6.6.9
[Test Plan]
* Tested on Intel TigerLake with iris Xe Graphics and no issues so far.
It seems it affects mostly Alder Lake though, but at least it does not
cause any issues on other models.
* It has also been tested upstream
https://gitlab.freedesktop.org/drm/intel/-/issues/8685
[Where problems could occur]
* We could see issues on systems with Intel Graphics when HDMI devices
are connected during power state changes.
Old description:
It is exactly this bug: https://gitlab.freedesktop.org/drm/intel/-/issues/8685
It was fixed with that kernel commit:
commit 648d7be8ecf47b0556e32550145c70db153b16fb
Author: Ville Syrjälä <[email protected]>
Date: Mon Dec 11 23:37:47 2023 +0200
drm/i915/dmc: Don't enable any pipe DMC events
https://lore.kernel.org/stable/[email protected]/
which was picked for 6.6.9.
I'd like to ask whether it is possible to apply that patch to the
current Ubuntu kernel?
Best
Sönke
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-6.5.0-14-generic 6.5.0-14.14~22.04.1
ProcVersionSignature: Ubuntu 6.5.0-14.14~22.04.1-generic 6.5.3
Uname: Linux 6.5.0-14-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Jan 11 13:11:59 2024
InstallationDate: Installed on 2023-03-01 (316 days ago)
InstallationMedia: Ubuntu 22.04.2 LTS "Jammy Jellyfish" - Release amd64
(20230223)
SourcePackage: linux-signed-hwe-6.5
UpgradeStatus: No upgrade log present (probably fresh install)
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