Comment 22 for bug 1080350

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@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.