Ubuntu kernel 6.17.0-22-generic breaks FAN measurement

[heynnema]

Has this issue been covered in the Wiki?

• I have read the Wiki and my issue is not covered.

Is there an existing issue reported already?

• I have searched the existing issues, it does not exist.

What is the unexpected behavior?

Ubuntu kernel 6.17.0-22-generic was installed today, and now the FAN display reads "no data". I suspect that they've changed the interface to the fans. Vitals 75.

Steps to reproduce the unexpected behavior.

Update to kernel 6.17.0-22-generic
Note top bar display, and the FAN reads "no data"

Relevant log output

What distribution and version of Linux are you using?

Ubuntu 25.10

What version of Gnome are you using?

49

[corecoding]

I don't think they changed how the fans would be reported. There are several linux command line tools, some that have been around for decades, that expect the directory format to be a specific way. Please try installing the lm-sensors package (and possibly reboot) to see if the fans come back.