http://bugzilla.kernel.org/show_bug.cgi?id=15425
Summary: Wrong ACPI temperature after suspend/resume
Product: ACPI
Version: 2.5
Kernel Version: 2.6.33
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: Power-Thermal
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: Yes
Probably starting with 2.6.30 (see
https://bugzilla.redhat.com/show_bug.cgi?id=532161) the following problem has
been reported:
--snip from bugzilla.redhat.com--
When using kernel 2.6.30.9-90.fc11.i686.PAE ACPI reports all temperature zones
are 0 C. When this happens the cooling fans are never turned on causing instant
shutdowns when the temperatures reach a dangerous level.
Version-Release number of selected component (if applicable):
2.6.30.9-90.fc11.i686.PAE
With the previous stable kernel version:
[aba...@roadrunner ~]$ uname -r
2.6.30.8-64.fc11.i686.PAE
[aba...@roadrunner ~]$ sudo cat /proc/acpi/thermal_zone/TZ01/temperature
temperature: 39 C
(after suspend/resume)
[aba...@roadrunner ~]$ sudo cat /proc/acpi/thermal_zone/TZ01/temperature
temperature: 39 C
With the latest kernel version and all updates from the testing repo:
[aba...@roadrunner ~]$ uname -r
2.6.30.9-90.fc11.i686.PAE
[aba...@roadrunner ~]$ sudo cat /proc/acpi/thermal_zone/TZ01/temperature
temperature: 39 C
(after suspend/resume)
[aba...@roadrunner ~]$ sudo cat /proc/acpi/thermal_zone/TZ01/temperature
temperature: 0 C
--snap--
I still see this in latest 2.6.33
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