Kernel Bug Tracker – Bug 11719
another HP laptop to blacklist with thermal trip points with insanely low values
Last modified: 2008-10-11 04:59:29 UTC
Distribution: Ubuntu 8.10
Hardware Environment: HP Compaq 6715s
Problem Description: in 2.6.27-rc9 I noticed a fix/blacklist (commit e84956f92a846246b09b34f2a728329c386d250f) for two ATI laptop that set thermal trip points to insanely low values.
I am using current Ubuntu LiveCD which ships kernel 2.6.27-6.9 (2.6.27-rc9 based) and I noticed a similar problem on my HP Compaq 6715s (with latest BIOS F.0D 08/20/2008).
Steps to reproduce: run current LiveCD (downloaded from http://cdimage.ubuntu.com/daily-live/). The system is really slow, the fan is always active, but ouput fresh air.
If can be useful, running the following command as found here: http://marc.info/?l=linux-acpi&m=121396447214047&w=4
$ cat /proc/acpi/thermal_zone/TZ*/trip_points
critical (S5): 105 C
passive: 16 C: tc1=1 tc2=2 tsp=100 devices=C000 C001
active: 16 C: devices=C39B
active: 16 C: devices=C39C
active: 16 C: devices=C39D
active: 16 C: devices=C39E
Maybe it should blacklisted also this hardware?
It would really help things along if you could email a tested patch to
Andrew Morton <firstname.lastname@example.org>
"Rafael J. Wysocki" <email@example.com>
Created attachment 18257 [details]
General fix for the issue
In fact the attached patch from Andreas Herrmann should fix all of these boxes at once (already in the Ingo's tree).
*** This bug has been marked as a duplicate of bug 11516 ***