Yesterday i upgraded the linux kernel from 5.15.0-46-generic to 5.15.0-50. After rebooting the second monitor was not getting detected (connected via HDMI cable). When i booted back from 5.15.0-46, the monitor worked again.
I am running Ubuntu 20.04.5 LTS
*-display
description: VGA compatible controller
product: Renoir
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:04:00.0
version: c6
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi msix vga_controller bus_master cap_list
configuration: driver=amdgpu latency=0
resources: irq:45 memory:d0000000-dfffffff memory:e0000000-e01fffff ioport:e000(size=256) memory:fe600000-fe67ffff
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: ali 2669 F.... pipewire-media-
/dev/snd/controlC0: ali 2669 F.... pipewire-media-
/dev/snd/seq: ali 2668 F.... pipewire
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2022-01-25 (260 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
MachineType: SchenkerTechnologiesGmbH SCHENKER VIA 15 Pro
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
Package: linux (not installed)
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-46-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.15.0-46.49~20.04.1-generic 5.15.39
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-5.15.0-46-generic N/A
linux-backports-modules-5.15.0-46-generic N/A
linux-firmware 1.187.33
Tags: focal
Uname: Linux 5.15.0-46-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip input kvm libvirt lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/11/2021
dmi.bios.release: 5.16
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: N.1.07.A03
dmi.board.asset.tag: Standard
dmi.board.name: PF5NU1G
dmi.board.vendor: NB02
dmi.board.version: Standard
dmi.chassis.asset.tag: Standard
dmi.chassis.type: 10
dmi.chassis.vendor: SchenkerTechnologiesGmbH
dmi.chassis.version: Standard
dmi.ec.firmware.release: 1.7
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN.1.07.A03:bd05/11/2021:br5.16:efr1.7:svnSchenkerTechnologiesGmbH:pnSCHENKERVIA15Pro:pvrStandard:rvnNB02:rnPF5NU1G:rvrStandard:cvnSchenkerTechnologiesGmbH:ct10:cvrStandard:skuSVI15PM20:
dmi.product.name: SCHENKER VIA 15 Pro
dmi.product.sku: SVI15PM20
dmi.product.version: Standard
dmi.sys.vendor: SchenkerTechnologiesGmbH
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1992593
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.