@Alberto Milone: The only reason for my previous comment is to highlight the importance of this bug.
I had exactly the same problem as 'Alistair Buxton': How many cards? 1 The number of cards has changed! <-- No it hasn't. Has the system changed? Yes <-- Wrong /etc/X11/xorg.conf was removed three times (not in a row but, apparently, randomly) before I decided to disable the buggy gpu-manager for good. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1376832 Title: gpu-manager still deletes xorg.conf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-drivers-common/+bug/1376832/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs