Problems with the radeon driver

Warren Block wblock at wonkity.com
Mon Sep 5 18:15:35 UTC 2011


On Mon, 5 Sep 2011, Adam K Kirchhoff wrote:

>
> Has anyone else seen this type of artefacting with the radeon driver:
>
> http://adam.visualtech.com/radeon-corruption.jpg
>
> I get it on two different machines, one with an HD4850 and one with an HD4350.
> I've put up with it for over a year now, but it's really started to get on my
> nerves.
>
> I've done some testing and it seems to have been introduced in 6.13.0.  If I
> go back to 6.12.7, everything is fine.  I'm using X server 1.7.7 from ports,
> with EXA acceleration.  This happens without a compositor running
> (kwin/compiz/xcompmgr).  In the screenshot, it's just plain openbox.  You can
> see three windows (Terminal, akregator, chrome) as one big giant mess.   This
> happens mostly when moving/resizing windows, but also with scrolling.

When experimenting with other wm lately, I saw that type of thing, but 
only with openbox.

> Running 'xrefresh' will clear the screen and redraw everything properly.  But
> then I move a window, and it happens again.  Sometimes it's worse than others.
> In the screenshot, it's particularly bad.

Maybe openbox can be patched to force refreshes.  But the other wms I 
tried didn't seem to have the problem.


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