This might be some kind of misconfiguration of the proprietary Nvidia driver. Please try:
1. Uninstall the Nvidia driver and reboot. 2. Reinstall the Nvidia driver and reboot. If that doesn't fix the problem then maybe you don't really need the proprietary driver so just do: 1. Uninstall the Nvidia driver and reboot. ** Changed in: nvidia-graphics-drivers-390 (Ubuntu) Status: New => Incomplete ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-390 in Ubuntu. https://bugs.launchpad.net/bugs/1875113 Title: OpenGL not detected (Intel Ivy Bridge + Nvidia GeForce GT 635M) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/1875113/+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