As a workaround, the problem was resolved by avoiding the driver to use the aceleration. It's needed to write in the '/etc/X11/xorg.conf' file:
Section "Device" Identifier "Configured Video Device" Driver "psb" Option "NoAccel" "true" EndSection -- x-server freezes on dell-mini 12" (poulsbo driver) https://bugs.launchpad.net/bugs/419383 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