http://bugzilla.kernel.org/show_bug.cgi?id=9169
Summary: Fan not working
ahttp://bugzilla.kernel.org/enter_bug.cgi?product=ACPIft
er resume from hibernate but ok after s2ram
Product: ACPI
Version: 2.5
KernelVersion: 2.6.23
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Fan
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
CC: [EMAIL PROTECTED]
Most recent kernel where this bug did not occur: unknown
Distribution: Ubuntu Feisty
Hardware Environment: Toshiba Satellite U305-S5077
Software Environment: Feisty with upgraded kernel. See
https://www.dea.icai.upcomillas.es/romano/pmwiki/pmwiki.php/Main/ToshibaU305
Problem Description: After resuming from hibernation (suspend-to-disk), fan is
not started when temperature goes up. I tried some acpi patches (see:
http://sourceforge.net/mailarchive/forum.php?thread_name=1192224624.7038.9.camel%40rukbat&forum_name=suspend-devel
) but I had no luck. Patch tested were:
http://www.sisk.pl/kernel/hibernation_and_suspend/2.6.23/patches/38-ACPI-power-don_t-cache-power-resource-state.patch
http://www.sisk.pl/kernel/hibernation_and_suspend/2.6.23/patches/39-ACPI-Fan-fan-device-does-not-need-own-structure.patch
http://www.sisk.pl/kernel/hibernation_and_suspend/2.6.23/patches/40-Fan-Drop-force_power_state-acpi_device-option.patch
If resuming from suspend-to-ram all is working well.
Steps to reproduce: simply chose hibernate from the menu, resume, run some
intensive cpu task and see the temperature go up till 80 degree celsius without
triggering the fan (in normal conditions it starts at 60 celsius).
I use vmware and ndiswrapper modules, but I have reproduced the problem without
any binary driver loaded.
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