[ltp] partial success w/ radeon-patch on T41

obi linux-thinkpad@linux-thinkpad.org
Thu, 3 Feb 2005 01:06:28 -0800


On Thu, Feb 03, 2005 at 08:59:42PM +1300, Bret Comstock Waldow wrote:
> Just a shot in the dark...
> 
> Can you check your CPU speed on resume?  Is it being set lower?

I can't help about the high pitch sound, but I solved the slow radeon
upon wakeup upgrading to xorg 6.8.1.

cheers,
graziano

> 
> On Thu, 2005-02-03 at 06:29, Ulrich Kuehn wrote:
> > Hi everybody,
> > 
> > I tried out the 2.6.11-rc2 kernel with the radeon patches to get rid of
> > the acpi sleep power issue. So far, I had some partial success so far.
> > 
> > Model 2373-2GG, Radeon Mobility 7500 (M7). Screen 1024x768, 14.1".
> > 
> > My thinkpad uses about 3000mW during suspend-to-RAM under 2.6.10
> > 
> > With all the patches and 2.6.11-rc2, it uses only about 600mW, so the
> > patch works as advertised.
> > 
> > Unfortunately, this comes at a price: There is sometimes a wierd,
> > high-pitched sound, as if some power converted would operate at some
> > audible frequency. So I assume there is some timing issues here. 
> > 
> > A second issue is that glxgears gives about 712 FPS when used after a
> > fresh boot, but only about 703 when running after resuming from
> > suspend-to-RAM.
> > 
> > Any ideas what's happening here?
> > 
> > Ulrich
> 
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