I was getting this error on Ubuntu 17.10 on a Mac Pro 2,1 and was also having problems with soft lockups associated with errors saying "CPU#x was stuck for 22s" (where x was the CPU number). When I removed gnome- screensaver, both issues stopped. However, when I reinstalled gnome- screensaver, the bug here (CRITICAL: Unable to create a DBus proxy for GnomeScreensaver) started happening again but the CPU lockups did not.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1736011 Title: CRITICAL: Unable to create a DBus proxy for GnomeScreensaver: Error calling StartServiceByName for org.gnome.ScreenSaver: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.gnome.ScreenSaver exited with status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1736011/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs