@Daniel van Vugt: You were right; the problem appears to have been related to a shell extension, but not one of the extensions you suggested I uninstall. The cause seems to have been the "freon" extension (https://extensions.gnome.org/extension/841/freon/) which was installed but disabled. Since this extension was removed the problem has not recurred.
So this is not a Gnome3 bug and this entry can be closed as such. Thank you for your assistance!! -- 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/1830255 Title: Gnome shell freezes for about 1 minute after screen blanks. high disk usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1830255/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
