Morris Johns was right, I fixed my ubuntu by writing his code at the end of /etc/X11/xorg.conf .
Section "Extensions" Option "Composite" "disable" EndSection I have found information about it too at https://help.ubuntu.com/community/BinaryDriverHowto/ATI Thank you very much -- [fglrx] Ati x1600Pro White screen on activating compiz https://bugs.launchpad.net/bugs/196900 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
