I make further investigations and try with this xorg.conf: Section "Monitor" Identifier "Configured Monitor" EndSection
Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" Device "Configured Video Device" EndSection Section "Device" Identifier "Configured Video Device" Driver "ati" Option "DRI" "false" EndSection Then everything is working like before. I think it is a dri issue on my HD3200. -- fails after login in gdm https://bugs.launchpad.net/bugs/421222 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