Chris Wilson writes:
> On Wed, Sep 24, 2014 at 01:23:26PM +0200, Egbert Eich wrote:
> > Chris Wilson writes:
> > > On Wed, Sep 24, 2014 at 12:34:29PM +0200, Egbert Eich wrote:
> > > >
> > > > For panning one needs to be able to draw into the screen pixmap
> > outside
> > > > of the area exposed by the crtc.
> > >
> > > Note that the screen pixmap still exists and is drawn into by the
> > > clients. What should happen with the panning is that the CRTC is updated
> > > through set_mode_major which invalidates the new CRTC location in the
> > big
> > > screen Pixmap and the contents copied during the next shadow update.
> > >
> > > That's the theory at least...
> >
> > Ok, so this isn't working. I will look into this as it's easy for me
> > to trigger this situation.
>
> Are you using an OpenGL compositor? So far bare X, awesome, dwm,
> enlightenment and kwin/xrender behave correctly. But gnome-shell and
> kwin/gl are broken, which is not an issue with the ddx.
No, as I wrote earlier I'm using bare X. I'm not using the latest driver bits
however. Will try and do this and get back to you.
Cheers,
Egbert.
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