Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes

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From	Uwe Kleine-König <ukleinek@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes
Date	Mon, 19 Jan 2026 22:20:01 +0100
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X-Original-Cc	Werner Sembach <wse@tuxedocomputers.com>
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Hello,

On Tue, Jan 06, 2026 at 01:25:32PM +0100, Steffen wrote:
> Package: linux-image-6.12.41+deb13-amd64
> Version: all kernel versions higher 6.1
> Severity: normal
> X-Debbugs-Cc: sk@ammonit.com
> 
> Since updating from Debian 12 to Debian 13, my PC has been
> experiencing repeated kernel freezes (about 1 to 2 times a day). To
> find the reason, I configured the log files so that they are not
> deleted when the system is restarted. Unfortunately, I couldn't find
> anything in them. My first attempt was to install newer kernels from
> experimental. This did not solve the problems.

When you say the kernel freeze, does the machine still respond to pings?
Does enabling the keyboard backlight (if available) and NumLock still
work? What about pressing Alt+PrtSc+b?

Can you try installing kernels packaged by Debian from between Debian 12
and Debian 13 from https://snapshot.debian.org/ to find the newest
kernel that still works and the oldest broken one?
 
> My solution now is to use a kernel from Debian 12. This runs reliably.
> 
> The kernel freeze problem also occurs on another PC. 
> 
> The systems I use are: Tuxedo InfinityBook Pro 14v5 N14xCU and Tuxedo InfinityBook Pro 15 Gen9 Model IBP15A09MK1 GX5HRXG

I added Werner Sembach to Cc:, maybe he has an idea or even seen this
before.

> -- System Information:
> Debian Release: 13.2
>   APT prefers stable-updates
>   APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'oldstable-security'), (500, 'stable'), (100, 'oldstable')
> Architecture: amd64 (x86_64)
> Foreign Architectures: i386
> 
> Kernel: Linux 6.1.0-35-amd64 (SMP w/8 CPU threads; PREEMPT)
> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
> Shell: /bin/sh linked to /usr/bin/dash
> Init: systemd (via /run/systemd/system)
> LSM: AppArmor: enabled
> 
> Versions of packages linux-image-6.12.41+deb13-amd64 depends on:
> ii  initramfs-tools [linux-initramfs-tool]  0.148.3
> ii  kmod                                    34.2-2
> ii  linux-base                              4.12
> 
> Versions of packages linux-image-6.12.41+deb13-amd64 recommends:
> ii  apparmor  4.1.0-1
> 
> Versions of packages linux-image-6.12.41+deb13-amd64 suggests:
> pn  debian-kernel-handbook  <none>
> ii  extlinux                3:6.04~git20190206.bf6db5b4+dfsg1-3.1
> ii  firmware-linux-free     20241210-2
> ii  grub-efi-amd64          2.12-9
> pn  linux-doc-6.12          <none>

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Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes Uwe Kleine-König <ukleinek@debian.org> - 2026-01-19 22:20 +0100
  Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes Werner Sembach <wse@tuxedocomputers.com> - 2026-01-20 15:30 +0100
  Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes Steffen Kühn <sk@ammonit.com> - 2026-01-21 08:30 +0100
  Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes Steffen Kühn <sk@ammonit.com> - 2026-01-22 12:00 +0100
  Bug#1124756: linux-image-6.12.41+deb13-amd64: sporadic freezes Steffen Kühn <sk@ammonit.com> - 2026-01-28 16:10 +0100

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