Red Hat Bugzilla – Bug 426771
22.214.171.124-85.fc8 breaks laptop fans
Last modified: 2009-01-09 00:37:20 EST
Description of problem:
It seems that 126.96.36.199-85.fc8 breaks my laptop fans. 188.8.131.52-63.fc8 did not.
After about 30 minutes of casual youtubing with .23.9 i find my cpu temperature
up to ~ 75c and notice the fans arn't making a peep. Right now with .23.8 i'm
running prime95 stress testing and am hitting about 45c and the fans are on
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Boot my laptop
2. Do something processor intensive
3. Wait for your hands to melt
CPU gets HOT fans don't run
CPU gets luke-warm, fans do run
This is on a Gateway M265E Core 2 Duo laptop with a GM965 chipset (this has
never had good acpi support in general, but melting plastic is a bit more than i
Let me know if you need any more information.
I have a little update here... it turns out it is not 184.108.40.206-85 where they
break, i'm currently running 220.127.116.11-63.fc8 and the fans WERE working...
however my laptop was feeling a bit toasty and i checked the sensors and here is
Adapter: ISA adapter
Core 0: +90°C (high = +100°C)
Adapter: ISA adapter
Core 1: +90°C (high = +100°C)
90!!! that is certainly not safe. And my fans arn't spinning one bit. I havn't
been able to figure out what causes it yet but *something* (maybe plugging in
the power or network or something) is causing my fans to stop only in linux.
I wonder if 426699 and 426771 might be duplicates of 407751
Sounds like they may be related. but the other two bugs have quite different
Is there any more information i could provide to help nail it down?
I don't know what has changed, but i snagged the latest kernel from koji
18.104.22.168-101.fc8 and the fans don't work from the get-go... no working for a
while and eventually stopping like before.
What is in /proc/acpi/fan/*/state when the problems are happening.
Can you force the fans on by echoing "1" to the 'state' files?
Right now, i recently restarted and i'm using 22.214.171.124-63.fc8 ...
/proc/acpi/fan/ is empty... At the moment the fans are working (with
126.96.36.199-63.fc8 the fans seemed to stop working *eventually*) I'll try with
188.8.131.52-101.fc8 later where the fans seemed broken right off the bat.
I tested out 2.6.24-0.167.rc8.git4.fc9 just to see what would happen, It was
running for about 2 days (including some suspending and resuming) and i THOUGHT
it was fine, however now the fans have stopped. It's practically idle and the
temps are up around 65c. I wasn't doing anything fancy, it's clearly not
something that stops from suspending and resuming.. how can i troubleshoot this?
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