This is most noticeable when you're trying to use Compiz and a dual-head screen, where the desktop size exceeds 2048 pixels in at least one direction. The desktop window exceeds the Mesa texture limit and fails to draw.
Keith Packard floated a patch to increase the Mesa texture size limit to 4096x4096 on the xorg mailing list in April: http://lists.freedesktop.org/archives/xorg/2008-April/034707.html
With that patch applied I can use Compiz with dual-head.
The bug is also reported in Ubuntu as https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/146859
This is most noticeable when you're trying to use Compiz and a dual-head screen, where the desktop size exceeds 2048 pixels in at least one direction. The desktop window exceeds the Mesa texture limit and fails to draw.
Keith Packard floated a patch to increase the Mesa texture size limit to 4096x4096 on the xorg mailing list in April: http:// lists.freedeskt op.org/ archives/ xorg/2008- April/034707. html
With that patch applied I can use Compiz with dual-head.
The bug is also reported in Ubuntu as https:/ /bugs.launchpad .net/ubuntu/ +source/ mesa/+bug/ 146859