I can confirm that the problem is solved if I disable the DRI Module. Not a Solution but better than to work with vesa.
Please ask if you need any further information, logs or configs. Thanks. ** Changed in: xserver-xorg-driver-savage (Ubuntu) Status: Needs Info => Confirmed -- X freeze the computer (Dapper - glcore) https://launchpad.net/bugs/33368 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs