Red Hat Bugzilla – Bug 112454
kernel 2.4.22-1.2129.nptl update looses laptop CPU fan control
Last modified: 2007-11-30 17:10:34 EST
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Description of problem:
Since installing the 2.4.22-1.2129.nptl kernel update, my Sony VAIO
laptop has shutdown twice apparently due to overheating. Further
experimentation showed that the 2.4.22-1.2115.nptl kernel did
correctly activate the CPU fan when required, and the
2.4.22-1.2129.nptl kernel does not.
The laptop concerned is a PCG-Z600LEK with a 700MHz Pentium III with
SpeedStep. The problems only started occuring after the kernel update.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Turn on laptop - it will cut out after approx 1 hour (depending on
Actual Results: Shutdown probably due to overheat.
Expected Results: Remains operating normally, using cooling fan as
Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem
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and if you believe this bug is interesting to them, please report the problem in
the bug tracker at: http://bugzilla.fedora.us/