Thank you for this solution because finally i can open all my application without crashing XORG.
Solution to this problem seems to be very simple which i found after struggling with the problem for a year. This is on the assumption that all of you have used the nvidia-settings utility to generate your xorg.conf file. Edit the /etc/X11/xorg.conf file and comment out or delete the below shown lines Section "Files" FontPath "unix/:7100" EndSection Save the file and restart GDM or lightDM which ever is your login manager using /etc/init.d/gdm restart or /etc/init.d/lightdm restart Now all of the QT applications like virtualbox and skype should not crash X -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/927288 Title: Xorg crash with qt4 apps using nvidia drivers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/927288/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs