enabling Composite

[Hal V. Engel]

On Sunday 27 July 2008 02:15:56 pm Nikos Chantziaras wrote:
> Edwin Smulders wrote:
> > On Sun, Jul 27, 2008 at 9:51 PM, Jacob Welsh <welshjf at gmail.com> wrote:
> >> Look at http://gentoo-wiki.com/HOWTO_nVidia_GL_Desktop_Effects if you
> >> haven't already. Compositing works for me on Gentoo with the same card
> >> and driver version. You should be seeing this in your Xorg.0.log:
> >>
> >> (II) NVIDIA(0): Support for GLX with the Damage and Composite X
> >> extensions is (II) NVIDIA(0):     enabled.
> >>
> >> Otherwise, you might try the Gentoo forums. You can't expect X.org
> >> developers to support a proprietary, 3rd party driver.
> >
> > I'm seeing those 2 lines in my log. I've also looked at that wiki
> > page, but it assumes that it works after adding the needed lines.
>
> Maybe a dumb question, but did you test if works even if xdpyinfo
> doesn't mention Composite?  (KDE 4 compositing or Compiz).
>

You also need to make sure you are not using Xinerama.  If you have dual 
monitors you must use twinview to get composit working (don't ask me why 
becaue this seems like a very dumb rule to me and I have yet to see an 
explanation that makes sense to me for why this is required).  Unfortuneately 
using twinview introduces other problems that may or may not matter to you.  I 
have used KDE4 composit on my dual monitor setup with a GT7950 card using 
twinview although I normally run Xinerama on my machine.  I am hoping that at 
some point soon I can start using the Nouveau driver (please let it be sooner 
rather than later) so that I can stop putting up with this nonsense.

Hal
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