uhci_hcd worst, followed by fglrx

Ricardo Martins meqif at scarybox.net
Thu May 17 09:56:40 PDT 2007


On Tue, 15 May 2007 17:20, Ricardo Martins wrote:
> On Tue, 15 May 2007 16:52, Peter Robinson wrote:
> > > uhci_hcd is responsible for the most wake-ups for me with a constant 100
> > > wake-ups/second, second is fglrx with a constant 60 wake-ups/second. Power
> > > state doesn't matter for fglrx, and like I said these values seem very
> > > constant.
> > > Kernel is 2.6.21-gentoo with powertop patches applied cleanly. When
> > > activated firewire and pcmcia were also quite active.
> > 
> >  I believe the kernel guys are working on fixing the USB problems. The
> >  fglrx is a binary only driver from ATI so either ATI needs to fix that
> >  driver or you need to move to the Open Source radeon driver.
> 
> The Open Source radeon driver has the same behaviour -- 60 wake-ups per
> second.

I found a patch[1] at LKML for fixing this behaviour. It's just a hack,
but works for me.

[1] http://lkml.org/lkml/2007/5/16/53

Regards,
-- 
 Ricardo Martins  ><><  www.swearing-ape.net  ><><  scarybox.net




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