The "Xlib: extension "GLX" missing on display ":0"" message suggests it's indeed a problem with the GPU. I found that it could be caused by bugs with nvidia drivers. This could be the case, as mine it's an optimus laptop with NVIDIA GTX 850m.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1543458 Title: Xorg crash prevents login Status in nvidia-graphics-drivers-352 package in Ubuntu: New Status in unity package in Ubuntu: New Status in xorg package in Ubuntu: New Bug description: After a recent update, it's no more possible to log in to Ubuntu 16.04 trough lightdm with Unity. I'm attaching .xsession-errors hoping it can be useful. I'm reporting this from another partition with Trusty, because I did'n know how to report without any GUI. I'm willing to add details if anyone helps me on how to send them from the CLI. 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/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
