Comment 7 for bug 746924

Revision history for this message
Phillip Susi (psusi) wrote : Re: [Bug 746924] Re: kernel default cpufreq governor fails to take action when system is overheating

On 4/14/2011 2:39 AM, Steve Langasek wrote:
> The last problem is that the acpi thermal thresholds themselves are
> screwed up. With a single thermal zone on the system, I have:

Jamie reported that his was working correctly. I wonder if you are
running a different rev of the bios? Can you see if there is an upgrade
and what rev you are currently running?

> well, the linked cooling devices are all of type: Processor anyway, so
> that's not really related to the fan.

Right; it looks like the fan is normally on hardware auto pilot and that
the hardware just won't ramp it up to full speed. The ACPI tables only
configure the passive trip point to throttle the CPU; fans would be
hooked up to the active trip point if there were one and the ACPI tables
actually complied with the standard.