From: owner@bugs.debian.org   
      
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   Your message dated Tue, 20 Jan 2026 23:20:30 +0100   
   with message-id    
   and subject line Re: Bug#1125933: linux-image-6.12.63+deb13-amd64: Fan stuck   
   on high speed, wont turn off even though cpu usage is normal   
   has caused the Debian Bug report #1125933,   
   regarding linux-image-6.12.63+deb13-amd64: Fan stuck on high speed, wont turn   
   off even though cpu usage is normal   
   to be marked as done.   
      
   This means that you claim that the problem has been dealt with.   
   If this is not the case it is now your responsibility to reopen the   
   Bug report if necessary, and/or fix the problem forthwith.   
      
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   --    
   1125933: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1125933   
   Debian Bug Tracking System   
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   From: Jim Christian Dale Haukvik    
   To: Debian Bug Tracking System    
   Subject: linux-image-6.12.63+deb13-amd64: Fan stuck on high speed, wont turn   
   off even though cpu usage is normal   
   Message-ID: <176881009100.5700.13326303891488261766.reportbug@debian>   
   X-Mailer: reportbug 13.2.0   
   Date: Mon, 19 Jan 2026 09:08:11 +0100   
   Delivered-To: submit@bugs.debian.org   
      
   Package: src:linux   
   Version: 6.12.63-1   
   Severity: important   
   X-Debbugs-Cc: jchaukvik@gmail.com   
      
   Dear Maintainer,   
      
   What led up to the situation?   
   I upgraded my system from Debian 13.2 to 13.3. This included a kernel update   
   from version 6.12.57 to 6.12.63.   
      
   What exactly did you do (or not do) that was effective (or ineffective)?   
   I booted into the new kernel (6.12.63). I checked CPU usage using htop, which   
   was normal (under 5%), yet the fan remained at a high, constant speed.   
   I then rebooted and selected the previous kernel version (6.12.57) from the   
   GRUB advanced menu.   
      
   What was the outcome of this action?   
   On kernel 6.12.57, the fan behaves normally (turning off or slowing down at   
   idle). On kernel 6.12.63, the fans are not turning off.   
      
   What outcome did you expect instead?   
   I expected the fan management to remain functional as they were in the previous   
   kernel version. This appears to be a regression in the 6.12.63 build.   
      
      
   -- Package-specific info:   
   ** Version:   
   Linux version 6.12.63+deb13-amd64 (debian-kernel@lists.debian.org)   
   (x86_64-linux-gnu-gcc-14 (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for   
   Debian) 2.44) #1 SMP PREEMPT_DYNAMIC Debian 6.12.63-1 (2025-12-30)   
      
   ** Command line:   
   BOOT_IMAGE=/vmlinuz-6.12.63+deb13-amd64 root=/dev/mapper/debian--vg-root ro   
   quiet   
      
   ** Not tainted   
      
   ** Kernel log:   
   [   15.554932] audit: type=1400 audit(1768809475.551:10): apparmor="STATUS"   
   operation="profile_load" profile="unconfined" name="chromium" pid=1285   
   comm="apparmor_parser"   
   [   15.554990] audit: type=1400 audit(1768809475.551:11): apparmor="STATUS"   
   operation="profile_load" profile="unconfined" name="chrome" pid=1284   
   comm="apparmor_parser"   
   [   15.555918] audit: type=1400 audit(1768809475.551:12): apparmor="STATUS"   
   operation="profile_load" profile="unconfined" name="crun" pid=1287   
   comm="apparmor_parser"   
   [   15.556427] audit: type=1400 audit(1768809475.555:13): apparmor="STATUS"   
   operation="profile_load" profile="unconfined" name="element-desktop" pid=1289   
   comm="apparmor_parser"   
   [   15.657904] mc: Linux media interface: v0.10   
   [   15.703743] Bluetooth: Core ver 2.22   
   [   15.703777] NET: Registered PF_BLUETOOTH protocol family   
   [   15.703778] Bluetooth: HCI device and connection manager initialized   
   [   15.703781] Bluetooth: HCI socket layer initialized   
   [   15.703783] Bluetooth: L2CAP socket layer initialized   
   [   15.703785] Bluetooth: SCO socket layer initialized   
   [   15.704115] videodev: Linux video capture interface: v2.00   
   [   15.778020] nvme nvme0: using unchecked data buffer   
   [   15.842059] NET: Registered PF_QIPCRTR protocol family   
      
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