I'm also experiencing this, and I also have a 4k monitor, although not the same model as David. Mine is an LG 27UD58-B. It's hooked up to a KVM switch and might be taking longer to come up than is normal, but I haven't really noticed that.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1729028 Title: gnome-shell crashes after period of inactivity To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1729028/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs