After applying the latest updates for focal yesterday and rebooting, the internal display of my laptop is no longer usable. Only a noisy, snowy image can be seen on the display. An externally connected display still works.
I can reproduce this behavior on 2 laptops:
TUXEDO Pulse 14 - Gen1
AMD Ryzen 7 4800H
ThinkPad T14s AMD Gen 1
AMD Ryzen 5 Pro 4650U
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: marius 1618 F.... pulseaudio
/dev/snd/controlC0: marius 1618 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: Pantheon
Dependencies:
DistroRelease: elementary OS 6.1
MachineType: TUXEDO TUXEDO Pulse 14 Gen1
Package: linux-firmware 1.187 [origin: Ubuntu]
PackageArchitecture: all
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-27-generic root=/dev/mapper/data-root ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.13.0-27.29~20.04.1-generic 5.13.19
RelatedPackageVersions:
linux-restricted-modules-5.13.0-27-generic N/A
linux-backports-modules-5.13.0-27-generic N/A
linux-firmware 1.187
Tags: third-party-packages jolnir
Uname: Linux 5.13.0-27-generic x86_64
UnreportableReason: Das ist kein offizielles elementary-Paket. Bitte entfernen Sie alle Pakete von Drittanbietern und wiederholen Sie den Vorgang.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: sudo
WifiSyslog:
_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: PULSE1401
dmi.board.vendor: NB02
dmi.board.version: Standard
dmi.chassis.asset.tag: Standard
dmi.chassis.type: 10
dmi.chassis.vendor: TUXEDO
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:svnTUXEDO:pnTUXEDOPulse14Gen1:pvrStandard:rvnNB02:rnPULSE1401:rvrStandard:cvnTUXEDO:ct10:cvrStandard:skuPULSE1401:
dmi.product.family: TUXEDO Computers
dmi.product.name: TUXEDO Pulse 14 Gen1
dmi.product.sku: PULSE1401
dmi.product.version: Standard
dmi.sys.vendor: TUXEDO
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