[ltp] xorg dri enabled - processor C3 state not entered

[Damien Challet]

On Monday 24 April 2006 04:20, Aidan Marks wrote:
> Digging up an old thread.  DRI doesn't allow C3/4 processor state.  I
> still see this on 2.6.16 on my T42 with radeon mobility 7500.  Disabling
> DRI allows C3/C4.
>
> Is this a fundamental issue that DRI causes bus master activity and it's
> not really a bug per se?

With fglrx (t41p, firegl T2), the ratio of C3/C2 is about 2 if fglrx.o is not 
loaded, and 1/3 otherwise. But then I wonder if this has anything to do with 
the fact that fglrx.o complains that it is forced to use kernel's agp, which 
does not provide agplock functionality (despite the fact that there is no 
support for anything related to agp or radeonfb in my kernel).