I can confirm your observation. The pixel is gone with the activated workspace switcher and during workspace switches using Ctrl+Alt+Arrow.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/944701 Title: Sometimes a single white pixel shows in the top-left corner To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/944701/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs