Computer freezes after upgrading to ubuntu 21.04 (20.04 LTS also affected)

[DavidEG]

Just upgraded from 20.10 to 21.04 and the system became unusable.

First login after upgrade, screen flicked every 6 seconds noticeably making the system unusable. Tried to log out, system froze.

Several more attempts, same flicking issue. Tried to use xorg instead of wayland, it worked once. No screen issues.

Only once though :( After that, computer starts normally but freezes in the login screen. Or freezes just after login if I manage to type the password fast enough.

Back to kernel 5.8.0-53 and xorg, everything looks ok.

ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: linux-image-5.11.0-17-generic 5.11.0-17.18
ProcVersionSignature: Ubuntu 5.8.0-53.60-generic 5.8.18
Uname: Linux 5.8.0-53-generic x86_64
ApportVersion: 2.20.11-0ubuntu65
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: david 2031 F.... pulseaudio
 /dev/snd/controlC0: david 2031 F.... pulseaudio
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Wed May 12 18:37:40 2021
InstallationDate: Installed on 2019-01-10 (853 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
MachineType: TOSHIBA SATELLITE S50-B
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.8.0-53-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash noresume vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.8.0-53-generic N/A
 linux-backports-modules-5.8.0-53-generic N/A
 linux-firmware 1.197
SourcePackage: linux
UpgradeStatus: Upgraded to hirsute on 2021-05-12 (0 days ago)
dmi.bios.date: 12/02/2014
dmi.bios.release: 2.0
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: 2.00
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: Type2 - Board Product Name1
dmi.board.vendor: Type2 - Board Vendor Name1
dmi.board.version: Type2 - Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: OEM Chassis ManuFacturer
dmi.chassis.version: OEM Chassis Version
dmi.ec.firmware.release: 2.0
dmi.modalias: dmi:bvnINSYDECorp.:bvr2.00:bd12/02/2014:br2.0:efr2.0:svnTOSHIBA:pnSATELLITES50-B:pvrPSPQEE-00F00JEN:rvnType2-BoardVendorName1:rnType2-BoardProductName1:rvrType2-BoardVersion:cvnOEMChassisManuFacturer:ct10:cvrOEMChassisVersion:
dmi.product.family: INVALID
dmi.product.name: SATELLITE S50-B
dmi.product.sku: INVALID
dmi.product.version: PSPQEE-00F00JEN
dmi.sys.vendor: TOSHIBA

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[DavidEG (davideg)]

Freezing at the login screen/after login happening also in Ubuntu 20.04.2 LTS. I had to reinstall the OS in this laptop and I went for the LTS version.

5.8.0-63-generic => OK
5.11.0-25-generic => System frozen after login
5.11.0-27-generic => System frozen after login