Ubuntu
linux package

  1. Bug #463940
  2. Comment #46

Comment 46 for bug 463940

Revision history for this message
Alex Chiang (achiang) wrote :

Hi Ivo,

Thank you for all the debugging work you've done so far.

As of F.06, I can confirm that the fans seem to be throttling correctly. A -j8 kernel build on this machine takes about 15 minutes. Observing the value in /proc/acpi/thermal_zone/TZ01/temperature shows a peak of around 81 C which decreases to 58 C or so after the build is done.

I can also physically hear the fans spin up rather high, and then throttle back after the build.

I think it's normal for /proc/acpi/fan/ to be empty, so I'm not too concerned about that.

I'll take a closer look at the parsing of CPUT and PSSC, as well as the C state oddity.

Thanks,
/ac