Same happened to me. For whatever reason both Intel Microcode and nvidia proprietary drivers were not used after upgrade from 16.10.
The installation of the nvidia proprietary drivers (alone) didn't solve the problem. But now, after additionally installing microcodes it seems to work. I will Inform if the lock-screen issue returns. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1685141 Title: System freezes after locking screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1685141/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
