It seems more like a problem with X.org, per https://wiki.ubuntu.com/Bugs/FindRightPackage#Graphical_Environment Changing package accordingly.
** Package changed: vlc (Ubuntu) => xorg (Ubuntu) ** Summary changed: - session + Session terminates while using some video players -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1292737 Title: Session terminates while using some video players Status in “xorg” package in Ubuntu: New Bug description: When I open a video with vlc the ubuntu session turn off and back to the login screen I have the same issue with mplayer. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: vlc 2.1.2-2build1 ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6 Uname: Linux 3.13.0-17-generic x86_64 NonfreeKernelModules: fglrx ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 CurrentDesktop: Unity Date: Fri Mar 14 20:05:49 2014 InstallationDate: Installed on 2014-03-09 (5 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140309) SourcePackage: vlc UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1292737/+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
