[Bugme-new] [Bug 8913] New: System/CPU fan fails to spin up causing the system to shutoff when thermal limits are reached

[bugme-daemon at bugzilla.kernel.org]

http://bugzilla.kernel.org/show_bug.cgi?id=8913

           Summary: System/CPU fan fails to spin up causing the system to
                    shutoff when thermal limits are reached
           Product: ACPI
           Version: 2.5
     KernelVersion: 2.6.23-rc3
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: ACPICA-Core
        AssignedTo: acpi_acpica-core at kernel-bugs.osdl.org
        ReportedBy: cp at absolutedigital.net


Most recent kernel where this bug did not occur: unknown
Distribution: Slackware 12.0
Hardware Environment: Averatec 2371 laptop
Software Environment: N/A
Problem Description:

My laptop will occasionally (usually on a cold boot) shutoff because the fan
doesn't spin up and the thermal limits of the CPU are hit. If I'm lucky I'll
notice (or remember to notice) and I can reboot and usually get it to work as
it should. Typically booting into that popular proprietary operating system
before booting to linux will make things work as desired.

Steps to reproduce:

Happens seemingly at random. Often on a cold boot but that doesn't always have
to be the case.

I came across this problem before with my previous laptop, an Averatec 3270. It
was only temporary and was caused by some changes to the EC polling mode that
went in during -rc phase but were reverted before -final was released.

Please let me know what I can provide to help debug this.


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