https://bugzilla.kernel.org/show_bug.cgi?id=18552
Summary: fans running at full-speed after resume from suspend
Product: ACPI
Version: 2.5
Kernel Version: 2.6.35.4
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Fan
AssignedTo: acpi_power-...@kernel-bugs.osdl.org
ReportedBy: jon+bugzilla.kernel....@alcopop.org
Regression: Yes
Hello,
With (at least) 2.6.35.4, my CPU fan runs at full speed after resuming from
suspend and can not be convinced to climb back down.
I first noticed this occur with the Debian patched kernel 2.6.32 (debian
version -21). The problem did not occur with 2.6.31 (debian version -2). I
then reproduced it with a pristine 2.6.35.4.
My machine is a desktop PC with an Intel DG35EC motherboard, quad core 2 duo
CPU, sblive PCI sound card, ATI graphics card of some sort (quite old).
I initially reported this upstream at http://bugs.debian.org/596741
Next time I sit down to investigate this I will try bisecting between 2.6.31
and 2.6.32, but any other suggestions for diagnosis gladly welcome.
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