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The bug happens whenever the remaining configuration files of the original X stack is removed, ie purging. It does not happen for users who do not explicitly remove those. Workaround: For example, if upgraded 14.04 LTS to the 14.04.2 HWE stack (=14.10/utopic): sudo dpkg-reconfigure xserver-xorg-lts-utopic This restores the symlink /etc/X11/X -> /usr/bin/Xorg --- After installing the hardware enablement stack on precise by running: sudo apt-get install linux-generic-lts-quantal xserver-xorg-lts-quantal Xorg fail to start. There is no error message or anything, just a black screen. Switching to a vt i possible and lightdm/x-0.log shows that a symlink is missing: X: cannot stat /etc/X11/X (No such file or directory), aborting. I updates two computers running precise x86_64 and both had the problem. Just recreating the symlink fixes the problem and then precise runs perfectly fine with the new stack (in fact, it's more stable so far). ** Affects: xorg (Ubuntu) Importance: Low Status: Invalid ** Affects: xorg-lts-trusty (Ubuntu) Importance: Undecided Status: Invalid ** Affects: xorg-lts-utopic (Ubuntu) Importance: Undecided Status: Triaged ** Affects: xorg-lts-vivid (Ubuntu) Importance: Undecided Status: Fix Released ** Tags: packaging precise regression-update trusty xorg-server -- Xorg fails to start after installing the Hardware Enablement Stack due to missing symlink after purging old xserver-xorg https://bugs.launchpad.net/bugs/1132736 You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp