the upstream bug is: https://bugs.freedesktop.org/show_bug.cgi?id=26345
as you can see in the report this was reported many times and appears to affect all 845G chipsets, so please do not ship squeeze without a fix or the following workaround. it took me about 30 reboots to figure this out. the workaround is: Option "Shadow" "true" in the xorg.conf "Device" section. to reproduce this bug, use: x11perf -range copywinpix10,comppixwin500 -time 1 -repeat 1 this appears to be a xorg bug, not a kernel bug. please change the assignment. -- <html><head> <title>DEREFER</title> <META HTTP-EQUIV="REFRESH" CONTENT="0; URL=http://www.gmx.net/?status=hinweis"> </head> <body bgcolor="#ffffff" link="#666666" vlink="#666666"> <table width="100%" height="100%" border="0"><tr><td align="center"><a href="http://www.gmx.net/?status=hinweis"><font face="Arial, Helvetica, sans-serif" size="2" color="#666666">Einen Moment bitte, die angeforderte Seite wird geladen...</font></a></td></tr></table> </body></html> GMX DSL Doppel-Flat ab 19,99 Euro/mtl.! Jetzt auch mit gratis Notebook-Flat! http://portal.gmx.net/de/go/dsl -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20101220215805.95...@gmx.net