I'm seeing a similar error on my Dell XPS 15 9550 with Geforce GTX 960M. I've installed nvidia-384 (384.111-0ubuntu0.17.10.1) from the propietary repository. It happens after suspending too!
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1712384 Title: Nvidia driver (proprietary) fails to load after suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-375/+bug/1712384/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs