Public bug reported:
On Lenovo E14 Gen 2 kernel 5.13.0-22 exhibits multiple bugs, one of them
is that the primary screen shows white noise (ant war) after attaching
an external monitor and switching it on and oft This cannot be solved by
switching to tty or restarting the display manager, reboot necessary
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.13.0-22-generic 5.13.0-22.22~20.04.1
ProcVersionSignature: Ubuntu 5.13.0-22.22~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-22-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat Feb 12 16:34:08 2022
InstallationDate: Installed on 2015-11-05 (2291 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
SourcePackage: linux-signed-hwe-5.13
UpgradeStatus: Upgraded to focal on 2020-09-10 (520 days ago)
modified.conffile..etc.apport.crashdb.conf: [modified]
mtime.conffile..etc.apport.crashdb.conf: 2019-03-07T14:28:39.455024
** Affects: linux-signed-hwe-5.13 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1960710
Title:
Ant war on primary laptop screen after attaching an external monitor
and switching it on and off
Status in linux-signed-hwe-5.13 package in Ubuntu:
New
Bug description:
On Lenovo E14 Gen 2 kernel 5.13.0-22 exhibits multiple bugs, one of
them is that the primary screen shows white noise (ant war) after
attaching an external monitor and switching it on and oft This cannot
be solved by switching to tty or restarting the display manager,
reboot necessary
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.13.0-22-generic 5.13.0-22.22~20.04.1
ProcVersionSignature: Ubuntu 5.13.0-22.22~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-22-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat Feb 12 16:34:08 2022
InstallationDate: Installed on 2015-11-05 (2291 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
SourcePackage: linux-signed-hwe-5.13
UpgradeStatus: Upgraded to focal on 2020-09-10 (520 days ago)
modified.conffile..etc.apport.crashdb.conf: [modified]
mtime.conffile..etc.apport.crashdb.conf: 2019-03-07T14:28:39.455024
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https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.13/+bug/1960710/+subscriptions
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