Public bug reported:
After upgrading the kernel from 5.13.0-48 to 5.15.0-41, my external
monitor connected via HDMI wasn't detected. According to xrandr the
HDMI-1 output is "disconnected".
If I select the 5.13.0-52 kernel from the boot menu, then the HDMI
monitor works fine. Unfortunately, I am not able to test connecting
using a different cable type.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.15.0-41-generic 5.15.0-41.44~20.04.1
ProcVersionSignature: Ubuntu 5.13.0-52.59~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-52-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: i3
Date: Thu Jul 14 12:53:37 2022
InstallationDate: Installed on 2020-11-05 (615 days ago)
InstallationMedia: Ubuntu-Server 20.04.1 LTS "Focal Fossa" - Release amd64
(20200731)
SourcePackage: linux-signed-hwe-5.15
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-signed-hwe-5.15 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal uec-images
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-signed-hwe-5.15 in Ubuntu.
https://bugs.launchpad.net/bugs/1981738
Title:
HDMI display no longer able to connect after kernel upgrade
Status in linux-signed-hwe-5.15 package in Ubuntu:
New
Bug description:
After upgrading the kernel from 5.13.0-48 to 5.15.0-41, my external
monitor connected via HDMI wasn't detected. According to xrandr the
HDMI-1 output is "disconnected".
If I select the 5.13.0-52 kernel from the boot menu, then the HDMI
monitor works fine. Unfortunately, I am not able to test connecting
using a different cable type.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.15.0-41-generic 5.15.0-41.44~20.04.1
ProcVersionSignature: Ubuntu 5.13.0-52.59~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-52-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: i3
Date: Thu Jul 14 12:53:37 2022
InstallationDate: Installed on 2020-11-05 (615 days ago)
InstallationMedia: Ubuntu-Server 20.04.1 LTS "Focal Fossa" - Release amd64
(20200731)
SourcePackage: linux-signed-hwe-5.15
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.15/+bug/1981738/+subscriptions
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