[Bug 35988] Power management not working on ATI M92 LP [Mobility Radeon HD 4300]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=35988

--- Comment #10 from sashker <sashker at inbox.ru> 2012-05-14 18:59:05 PDT ---
I have same problem with my Acer 4810TG notebook. The average temperature - is
70 degrees C. With proprietary driver - the temperature is 35-40 degrees C.

#lspci -nn| grep VGA
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc M92 LP [Mobility
Radeon HD 4300 Series] [1002:9552]

#uname -a
Linux 3.3.4-4.fc17.x86_64

#cat /sys/kernel/debug/dri/0/radeon_pm_info
default engine clock: 450000 kHz
current engine clock: 299530 kHz
default memory clock: 600000 kHz
current memory clock: 299250 kHz
voltage: 900 mV
PCIE lanes: 16


I'd tried to use dynpm and profile (low) options, but it doesn't help me.

I am willing to help with testing of the solution. A lot of people complain
about the heat when using the open driver that causes them to use the
proprietary driver.

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