I suppose the bug is solved in my special case. The reason of the bug could be a time-out-problem. The communication between the xserver and the graphic card could be disturbed by other hardware.
What did i do that the strange behaviour what i have reported stopped? I don`t know. I changed two files: 1. /etc/network/interfaces I stopped the most actions. May be i will allow eth0 to start inet dhcp. #auto lo #iface lo inet loopback auto eth0 #iface eth0 inet dhcp #auto eth2 #face eth2 inet dhcp # (ath0: Wlan-Interface) #auto ath0 #iface ath0 inet dhcp #auto wlan0 #iface wlan0 inet dhcp auto dsl-provider iface dsl-provider inet ppp provider dsl-provider pre-up /sbin/ifconfig eth0 up # line maintained by pppoeconf # iface ppp0 inet ppp #testweise ausgetragen # provider ppp0 # " # auto ppp0 # " 2. Otherwise i "tuned" the file /etc/hosts like this - the head of the file was changed to 127.0.0.1 localhost pcname 196.251.03.12 pcname - pcname is a place holder for the name of your computer. - 196.251.03.13 is a other place holder. You will get the correct adress by the command ifconfig in the terminal. Perhaps one of the changes above is the solution of my problem. Btw i removed with synaptic somes packages. But i don`t believe that on of those removed packages are of interest with my reported problem: xserver-xgl xserver-xorg-input-wacom xserver-xorg-input-all xserver-xorg-video-ati xserver-xorg-video-all My opinion is that there is no evidence for a relation between the bug i reported and the removed packages. Best regards Bernhard Schülke -- Gutsy-Upgrade-or-Live-CD: Resolution Bug with a Matrox Millenium G450 (Dualhead) Graphic card https://bugs.launchpad.net/bugs/156021 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs