OK. Please provide some/all of the information requested in comment #2. I suggest the next steps are:
1. Apply the workaround from bug 994921 first. 2. Then next time the problem happens look in /var/crash for relevant crash files and if found then run: ubuntu-bug /var/crash/YOURFILE.crash 3. If there were no crash files then please run 'kill -ABRT <PID>' on the hung gnome-shell process. Then goto step 2. 4. Tell us here the IDs of any new bugs opened via 'ubuntu-bug'. 5. After the problem happens next time, please run these commands and send us the resulting files: dmesg > dmesg.txt journalctl -b > journal.txt ** Changed in: gnome-shell (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1730540 Title: gnome-shell freezes after resume then unlock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1730540/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs