Well I seen a black area once, but this might have been something different. They issue does not appear to happen when I disable compositing in KWin with Alt-Shift-F12.
If you wish I can put this bug upstream at freedesktop.org. Thanks, -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/201201092115.40244.mar...@lichtvoll.de