Public bug reported:
Bug Report
Linux Distribution: Linux Mint 22.1
Release: 22.1
Cinnamon: 6.4.8
Codename: xia
Kernel: 6.8.0-64
BIOS Version: 3035 x64
Configuration:
Mainboard: Asus TUF Gaming B650-PLUS
CPU: AMD Ryzen 7 7700 (Zen 4, 8 cores, 16 threads, 3.8–5.3 GHz, AM5 socket)
CPU Cooler: Thermalright Peerless Assassin 120 SE
GPU: Sapphire Radeon RX 7800 XT Pure Gaming OC 16G (RDNA 3, GDDR6, 2x
DisplayPort, 2x HDMI 2.1)
RAM: 32 GB Corsair Vengeance DDR5-6000 CL36
Power Supply: Bequiet! Pure Power M12 850W
Storage: 1x ATA Samsung SSD 850; 1x 500 GB HDD (WDC WD10EZEX-00WN4A0)
Keyboard: Keychron V3 Max
darkm...@linuxedo.com
force-q...@cinnamon.org
pdfmana...@cinnamon.org
show-hide-applets@mohammad-sn
smallcalc_app...@lerc.sds
Exit@claudiux
auto-dark-light@gihaume
printers@linux-man
betterlock
networkmonitor@axel358
AutostartPrograms@spacy01
redshift@marvel4u
color-picker@fmete
moonphase@techi-freki
computer@brownsr
bettersettings@bownz
fe...@jonbrettdev.wordpress.com
ShutdownApplet@DeathMD
github-proje...@morgan-design.com
system-controls@rcalixte
Report:
- The case fans (bequiet) randomly ramp up to maximum speed for no apparent
reason (temperatures are absolutely fine, even under low load).
- Frequency: depending on usage, this happens 3–4 times per day.
- The only workaround is a full shutdown and power-on cycle; after a regular
reboot the issue persists.
- Fan curves have been adjusted in the BIOS; CPU fan = PWM, case fans = DC
(according to AMD/Ryzen recommendations).
- This issue did not occur with kernel 6.8.4-62/3.
- (Unfortunately, I cannot use 6.14.0-24 as my printer does not work with that
kernel.)
Troubleshooting steps so far:
- Adjusted fan curves in BIOS (Q-Fan) – settings are not lost on reboot.
- Installed and configured corectrl and lm-sensors
- sensors does not detect any mainboard or case fans.
- Removed sensors/corectrl again, as research suggests they might even trigger
the bug.
- Ran sensors-detect
- No mainboard or case fans/sensors detected.
- Attempted fancontrol setup
- Aborted, as there are no controllable sensors/fans found.
- Tested with different kernel versions (could be a coincidence)
- Issue did not occur with older kernels; happens with current kernel.
- Checked autostart entries and background services.
- Extensive research – no final solution found, as Asus does not provide
documentation for their Super I/O chips on AM5 boards, and thus no suitable
Linux drivers exist.
I would be very happy about a solution or advice. Thank you in advance.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: case fans kernel-bug
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https://bugs.launchpad.net/bugs/2118819
Title:
The case fans randomly ramp up to maximum speed for no apparent reason
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