[Bug 36438] ATI card fan is always on with opensource radeon driver

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=36438

--- Comment #20 from David Ayers <ayers at fsfe.org> ---
I've been regularly using:
echo low | sudo tee /sys/class/drm/card0/device/power_profile

I've am also using psensor to warn me if the temperature rises above 92°.  When
'idle' the temperature is at about 80°.  If the CPU is used (merely starting
eclipse and letting all the the startup validation processes finish) it quickly
rises to 88°.  If the usages is sustained (rebuilding a java project) the
temperature oscillates between 95° and 98°.  If I do anything else that adds to
the load (ie. if the temperature is >98° for short period of time), the system
freezes, but the everything remains on, fans and CPU temperature stays up.  I
need to turn off the notebook by keeping the power button pressed.

Note that this system overheats /with/ the low power profile.

Here are some general stats about this system, please let me know, if I can
provide further information:

HP Presario CQ61 320eg
AMD Turion(tm) II Dual-Core Mobile M500
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV710
[Mobility Radeon HD 4300 Series] (prog-if 00 [VGA controller])
Linux schiefer 3.2.0-33-generic #52-Ubuntu SMP Thu Oct 18 16:29:15 UTC 2012
x86_64 x86_64 x86_64 GNU/Linux
ayers at schiefer:~$ lsmod|grep rad
radeon                804503  2 
ttm                    76949  1 radeon
drm_kms_helper         46978  1 radeon
drm                   241921  4 radeon,ttm,drm_kms_helper
i2c_algo_bit           13423  1 radeon

This started after the upgrading from Maverick.  I'm currently running Precise
with the 2D Unity desktop.

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