Radeon EXA experiences

Michel Dänzer michel at daenzer.net
Sat Sep 24 09:16:35 PDT 2005

On Sat, 2005-09-24 at 16:11 +0200, Pierre Ossman wrote:
> I installed the latest xorg from cvs to give the new exa framework a go.
> These are the issues I found:
>  * The initial 'X' cursor is instead a blue, semi-transparent square.
>  * Only the first word of most texts is rendered.

A problem like that was fixed in EXA recently, when did you last update

>  * Occasional rendering glitches around glyphs. A multicolored
> horisontal line appears.

Yeah, most likely remaining minor cache flushing glitches.

>  * Mouse pointer disappears over GL windows.
>  * Mouse only gets 1-bit alpha over Xv overlay.

All your mouse related issues sound like you're using SW cursor, try HW
cursor instead.

> If I start xcompmgr I also have the problem of GL overlay not being
> clipped. But this appears on XAA aswell. XAA also gives rendering bugs
> with GL and xcompmgr so on this point EXA is more well behaved.

Yeah, this is because GL direct rendering isn't properly redirected yet.

> Btw, composite and shadows on windows have got a real now even without
> EXA. I thought XAA couldn't accelerate those things?

It does accelerate RENDER, but not nearly as well as EXA does.

Earthling Michel Dänzer      |     Debian (powerpc), X and DRI developer
Libre software enthusiast    |   http://svcs.affero.net/rm.php?r=daenzer

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