> i must add that problem does not exist when closed drivers (nvidia) are installed.
looks like a bug in the "nouveau" opensource nvidia drivers then ** Package changed: gnome-control-center (Ubuntu) => xserver-xorg-video- nouveau (Ubuntu) ** Changed in: xserver-xorg-video-nouveau (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1287928 Title: Ubuntu 13.10 and 14.04 see 2 screens in my laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1287928/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs