Your kernel log appears to be flooded with debug messages making the logs unreadable, so you need to remove drm.debug. Please then reboot without drm.debug and attach a single complete system log after the next freeze:
journalctl -b-1 > prevboot.txt Just one file please. ** Package changed: ubuntu => linux (Ubuntu) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2127687 Title: Unreliable Hard System Freeze/Kernel Lockup on Browser Notification (Ubuntu 25.10 / Kernel 6.17) Status in linux package in Ubuntu: Incomplete Bug description: Problem: Unreliable Hard System Freeze/Kernel Lockup on Browser Notification (Ubuntu 25.10 / Kernel 6.17). Log Evidence: The previous boot's journal log (journalctl -b -1) stopped abruptly at 16:23:53 with no error or shutdown message. The /var/crash/ directory confirmed no panic report was generated, indicating a total kernel failure before the panic handler could run. Trigger: The freeze occurred after a chrome browser notification pop- up (mention the browser). This is the most probable cause. System Details: Running on the Ubuntu 25.10 development branch with kernel 6.17.0-5-generic. This was observed in Ubuntu 25.04 as well. ProblemType: Bug DistroRelease: Ubuntu 25.10 Package: gnome-shell 49.0-1ubuntu1 ProcVersionSignature: Ubuntu 6.17.0-5.5-generic 6.17.0-rc7 Uname: Linux 6.17.0-5-generic x86_64 ApportVersion: 2.33.1-0ubuntu3 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Sat Oct 11 17:05:38 2025 DisplayManager: gdm3 InstallationDate: Installed on 2025-10-09 (2 days ago) InstallationMedia: Ubuntu 25.10 "Questing Quokka" - Release amd64 (20251007) ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> RelatedPackageVersions: mutter-common 49.0-2ubuntu5 SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2127687/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
