Ubuntu 24.04 LTS freezes on Thinkpad T510 with kernel 6.8.0-36-generic

[Christian Weisel]

Upgrading my Thinkpad T510 from Kubuntu 23.10 to 24.10 worked fine but the system freezes after some minmal activity with the kernel 6.8.0-36-generic.
No chance to check any log files or check for other issues. System freezes completly.

Booting with advanced options and choosing the old 23.20 kernel (version 6.5.0-28-generic) works perfectly fine.

Info:
Operating System: Kubuntu 24.04
KDE Plasma Version: 5.27.11
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.13
Kernel Version: 6.5.0-28-generic (64-bit) <- The one that works
Graphics Platform: X11
Processors: 4 × Intel® Core™ i5 CPU M 560 @ 2.67GHz
Memory: 7.5 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics
Manufacturer: LENOVO
Product Name: 4349WJK
System Version: ThinkPad T510

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: ubuntu-release-upgrader-core 1:24.04.19
ProcVersionSignature: Ubuntu 6.5.0-28.29-generic 6.5.13
Uname: Linux 6.5.0-28-generic x86_64
ApportVersion: 2.28.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: unknown
CrashDB: ubuntu
CurrentDesktop: KDE
Date: Sat Jun 29 17:39:18 2024
InstallationDate: Installed on 2018-11-27 (2041 days ago)
InstallationMedia: Kubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.2)
PackageArchitecture: all
ProcEnviron:
 LANG=de_DE.UTF-8
 LANGUAGE=de:en_US
 PATH=(custom, user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: Upgraded to noble on 2024-06-29 (0 days ago)
VarLogDistupgradeXorgFixuplog:
 INFO:root:/usr/bin/do-release-upgrade running
 INFO:root:No xorg.conf, exiting

[Christian Weisel (christian-weisel)]

Retested today after upgrade to kernel 6.8.0-38-generic.

Same behavior as before. System is freezing after some user activity while logging in.
Sometimes login finishes but then system freezes once there is some user activity.

Also testest with additional kernel parameter "nomodeset" as it seemed to me that his is related to i915 GPU. System is working stable but with not optimal screen resolution and a lot of dimesg warnings like:
intel ips 0000:00:1f.6: failed to disable graphics turbo

Any idea how the behavior like with kernel 6.5 like in Ubuntu 23.10 can be restored also with 6.8 kernel?

[Christian Weisel (christian-weisel)]

Also did a test with a fresh Kubuntu 24.04 iso on an usb thumb drive to exclude failure by the the existing installation (system is getting upgraded since 18.10).

Same as before.
System starts up and freezes after some initial user activity.
Often already during language selection.