ATI Mobility Radeon HD 4570 - Overheat issue

Rafał Miłecki zajec5 at
Wed Jun 30 14:47:50 PDT 2010

2010/6/30 Donato Capitella <d.capitella at>:
> I am writing to point out an issue I've been having for a while and
> that I have now been able to relate to the ATI open source driver. My
> ATI card is: ATI Mobility Radeon HD 4570.
> The problem is that when using the open source driver the CPU/computer
> temperature gets higher (about 10 °C higher) than when using the
> propietary driver. However, I can't use the propietary driver on my
> favourite distro and, what's more, I get far better performances with
> the open driver(complimenta to whoever has been working on it!).
> Now, I'd like to know if this is a known issue and if I can somehow
> help to solve it.

Just Google&read about power management. If you use DDX, check for
xorg.conf options. However the most advanced power management comes
with 2.6.35 kernel (engine, memory, voltage).


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