@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 Desktop Packages, which is subscribed to ubuntu-drivers-common in Ubuntu. https://bugs.launchpad.net/bugs/1376832 Title: gpu-manager still deletes xorg.conf Status in ubuntu-drivers-common package in Ubuntu: Confirmed Bug description: To reproduce: 1. Create /etc/X11/xorg.conf 2. Wait until there is an update for some package (I don't know which one, suspect an nvidia driver one). 3. Reboot. Result: gpu-manager deletes xorg.conf. Expected result: gpu-manager does not delete xorg.conf. Despite claims of a fix, this is still happening. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: ubuntu-drivers-common 1:0.2.91.7 ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6 Uname: Linux 3.13.0-36-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.1-0ubuntu3.4 Architecture: amd64 CurrentDesktop: XFCE Date: Thu Oct 2 17:36:03 2014 InstallationDate: Installed on 2014-06-29 (94 days ago) InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2) SourcePackage: ubuntu-drivers-common UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-drivers-common/+bug/1376832/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp