[compiz] radeon or radeonhd or xf86-video-ati ( was Re: Will radeon or radeonhd work with compiz?)

[David C. Rankin, J.D.,P.E.]

On Wednesday 13 May 2009 03:08:02 David C. Rankin, J.D.,P.E. wrote:
> On Wednesday 13 May 2009 01:41:21 you wrote:
> > > Wil,
> > >
> > >        You got me here. What do you mean EXA v. XAA? How do I change to
> > > test? I have tested both the radeon and radeonh drivers and can't tell
> > > much of a difference, if any. You also suggest trying the
> > > xf86-video-ati. Is it supposedly faster than the radeon and radeonhd
> > > drivers? I'll poke around some more, but if you have a few extra bits
> > > of info on it, I'd appreciate it. Thanks.
> >
> > XAA & EXA are the 2 different acceleration methods for most X drivers.
> >  Intel additionally has UXA, but its based on EXA.    I don't know
> > about the radeonhd driver, but the ati one defaults to XAA even tho
> > EXA generally provdes better performance these days (the commit has
> > been made to change the default to EXA in git, its just not released
> > yet).  Just add a line like
> >
> > Option "AccelMethod" "XAA"
> > or
> > Option "AccelMethod" "EXA"
> >
> > to the Device section in your xorg.conf file to change between them.
> > /var/log/Xorg.0.log will confirm what is getting used.
> >
> > Wil
>
> Got it!
>
> 	Thanks. I'll give it a go and report back.

Holy Crap!

	EXA makes a ton of difference! I can resize windows now without having to 
drag, un-click and ... wait. Man that's good.  Now if I could only get the 
openGL screensavers to work. All-in-all, I'm amazed at how good EXA works. 
Not near as fast as fglrx, but not too far behind. Thanks Wil!

-- 
David C. Rankin, J.D.,P.E.
Rankin Law Firm, PLLC
510 Ochiltree Street
Nacogdoches, Texas 75961
Telephone: (936) 715-9333
Facsimile: (936) 715-9339
www.rankinlawfirm.com