FS#19017 - [kernel26] CPU fan speed sometimes sticks at 100% on boot, kernel26-2.6.32-6 through 2.6.33.2-1

Attached to Project: Arch Linux
Opened by Owain Sutton (owain) - Friday, 09 April 2010, 20:45 GMT
Last edited by Tobias Powalowski (tpowa) - Tuesday, 29 June 2010, 05:07 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Tobias Powalowski (tpowa)
Thomas Bächler (brain0)
Architecture x86_64
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

This is on an Acer Aspire 7730 laptop.

On approx. 50% of boots, the CPU fan jumps to full speed early in the boot sequence, and stays there. Other times, seemingly randomly, the system works correctly with automatic stepping of fan speed with CPU temperature.

First mentioned in http://bbs.archlinux.org/viewtopic.php?id=91973 - apologies for not getting around to reporting anything further until now!

dmesg from a boot with the 100% fan speed: http://pastebin.com/NYn8Uxa9
dmesg from a correct boot: http://pastebin.com/ykw5sJVq
This task depends upon

Closed by  Tobias Powalowski (tpowa)
Tuesday, 29 June 2010, 05:07 GMT
Reason for closing:  Fixed
Comment by Thomas Dziedzic (tomd123) - Saturday, 05 June 2010, 15:10 GMT
Can you report this upstream?
Comment by Owain Sutton (owain) - Monday, 28 June 2010, 21:38 GMT
This appears to be fixed with kernel-2.6.34

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