I have just reported bug #147695 and marked it as a duplicate of this bug. It just happened while I was updating just now. The screensaver is "flurry" (the one many OSXs use) and it had started. It also reported a bug but that dialog simply vanished.
-- gnome-screensaver-gl-helper crashed with SIGSEGV https://bugs.launchpad.net/bugs/128476 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gnome-screensaver in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
