Public bug reported:

Hi,

Kernel 5.8 won't accept keystrokes at ubuntu login.

I have to switch to kernel 5.4 during grub startup.

It took quite some time to find this workaround. I'll try several
workarounds and document it, so I can avoid wasting time on things like
this. I saw in some posts that it might be related to NVIDIA drivers.

It would be nice if this problem could be fixed.

Einar

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-65-generic 5.4.0-65.73
ProcVersionSignature: Ubuntu 5.4.0-65.73-generic 5.4.78
Uname: Linux 5.4.0-65-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.14
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC2:  einar      1937 F.... pulseaudio
 /dev/snd/pcmC2D8p:   einar      1937 F...m pulseaudio
 /dev/snd/controlC1:  einar      1937 F.... pulseaudio
 /dev/snd/controlC0:  einar      1937 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Jan 29 19:09:32 2021
InstallationDate: Installed on 2019-02-06 (723 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
MachineType: ASUSTeK COMPUTER INC. G30AB
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-65-generic 
root=UUID=fff081ba-7bb9-460f-aa42-fdaf4158c2ec ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-65-generic N/A
 linux-backports-modules-5.4.0-65-generic  N/A
 linux-firmware                            1.187.9
SourcePackage: linux
StagingDrivers: ashmem_linux
UpgradeStatus: Upgraded to focal on 2020-10-29 (92 days ago)
WifiSyslog:
 
dmi.bios.date: 07/05/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0407
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: G30AB
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr0407:bd07/05/2013:svnASUSTeKCOMPUTERINC.:pnG30AB:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnG30AB:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.family: Desktop
dmi.product.name: G30AB
dmi.product.sku: All
dmi.product.version: System Version
dmi.sys.vendor: ASUSTeK COMPUTER INC.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug focal staging

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https://bugs.launchpad.net/bugs/1913783

Title:
  Keyboard doesn't work at login

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