If you find the flashing is especially worse on Nvidia then that might relate to bug 1869750 so it will also be interesting to see if the update to 3.36.1 makes a difference.
** Package changed: linux (Ubuntu) => gnome-shell (Ubuntu) ** Package changed: nvidia-graphics-drivers-435 (Ubuntu) => mutter (Ubuntu) -- 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/1869549 Title: [nvidia] Whenever a sound needs to be played the screen blanks out To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1869549/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs