Mailinglist Archive: radeonhd (271 mails)

[Matthias Hopf <mhopf@xxxxxxx>]

On Nov 20, 09 10:35:45 -0500, Alex Deucher wrote:
> On Fri, Nov 20, 2009 at 5:52 AM, Matthias Hopf <mhopf@xxxxxxx> wrote:
> > >       Big improvements. Using the snippet above as my xorg.conf eliminated 
> > > all of
> > > the window shaking and miss-drawn horizontal lines. However, since 
> > > compositing
> > > is disabled as a result, when you move windows, multiple copies of the 
> > > windows
> > > get left behind for a second or two. See:
> >
> > Ok, in that case it is *not* a linebuffer issue, but only acceleration.
> > shadowfb switches off hardware acceleration (and selects software
> > acceleration), and apparently repaint priorities in the xserver changed
> > so you can see the effect you're describing.
>
> It still could be line buffer related.  When 2d/3d is active, it
> contends with the display controllers for memory bandwidth and
> priority.

Right.

Matthias

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