I installed an xfce session to report the bug, but I cannot run ubuntu bug:
$ubuntu-bug 1543458 sys:1: PyGIWarning: Wnck was imported without specifying a version first. Use gi.require_version('Wnck', '3.0') before import to ensure that the right version gets loaded. sys:1: PyGIWarning: GdkX11 was imported without specifying a version first. Use gi.require_version('GdkX11', '3.0') before import to ensure that the right version gets loaded. Xlib: extension "GLX" missing on display ":0". (apport-gtk:7836): Gtk-WARNING **: Theme parsing error: gtk- widgets.css:2149:29: Expected a valid selector ** Also affects: nvidia-graphics-drivers-352 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1543458 Title: Xorg crash prevents login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-352/+bug/1543458/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp