Public bug reported:
Upon upgrading to the latest HWE edge kernel (from 5.11 to 5.13) on
20.04, I found that my screen won't work if my laptop goes idle (screen
off) or wakes up from suspend. Reverting to 5.11 resolves this for me.
This seems to be a common issue across many distributions and appears to
have been fixed in 5.14.
I'm using a ThinkPad P14s AMD Gen 1 with Ryzen 7 4750u (integrated
graphics).
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.13.0-21-generic 5.13.0-21.21~20.04.1
ProcVersionSignature: Ubuntu 5.13.0-21.21~20.04.1-generic 5.13.18
Uname: Linux 5.13.0-21-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Tue Nov 9 10:46:08 2021
InstallationDate: Installed on 2021-07-08 (123 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64
(20210209.1)
SourcePackage: linux-signed-hwe-5.13
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-signed-hwe-5.13 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal kernel-bug
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https://bugs.launchpad.net/bugs/1950339
Title:
Screen stays black after going idle or waking up from suspend on AMD
laptop
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