Problems with the radeon driver

[Adam K Kirchhoff]

On Mon, 5 Sep 2011 11:42:09 -0600 (MDT)
Warren Block <wblock at wonkity.com> wrote:

> 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.

This happens to me regardless of the window manager.  I get it in
openbox, and with both xfce4 and kde4.

Adam