Bug#461153: xserver-xorg-video-ati: rotation corrupts screen

[Alex Deucher]

On Jan 17, 2008 4:27 AM, Xavier Bestel <xavier.bestel at free.fr> wrote:
> On Thu, 2008-01-17 at 10:00 +0100, Michel Dänzer wrote:
> > On Wed, 2008-01-16 at 23:26 +0100, Xavier Bestel wrote:
> > > Package: xserver-xorg-video-ati
> > > Version: 1:6.7.198~git20080109.10e7636c-1
> > > Severity: normal
> > >
> > >
> > > Hi again ...
> > >
> > > when I rotate display using
> > > xrandr -o 1
> > > or
> > > xrandr --output DVI-0 --rotation left
> > > the display is corrupted. I can see some parts of the windows rotated,
> > > some part non-rotated, and some garbage everywhere.
> > > I'm using compiz.
> >
> > Then it can't work until xserver 1.5 due to previously missing AIGLX
> > damage reporting.
> >
> >
> > > 01:00.0 VGA compatible controller: ATI Technologies Inc RV350 AR [Radeon 9600]
> >
> > Note that even without a GLX compositing manager, support for
> > accelerated rotation with R300 generation cards was only just pushed to
> > the upstream Git repository. Also, AFAIK it's only working correctly
> > with EXA at this point.
>
> Ok, fair enough.
> I've tried with metacity, and you're right it's damn slow.
> But the display is also corrupted. All the pixel on the right of the
> (non-rotated) screen are garbled, I'd say on the last fifth of the
> display.
> I took a screenshot, but on the screenshot everything is allright. So
> the corruption happens only on-screen.

What version of the driver/xserver are you using?  Earlier version of
radeon had some bugs when it came to rotation.

Alex