A little more information: this also happens if I switch workspaces using the "Workspace Switcher" panel widget (not using the CTRL-ALT- arrow keys, just clicking on a workspace with the left mouse button). This does not draw the 4x2 workspace miniatures transient window, but still corrupts the new workspace by leaving old windows' borders.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/778083 Title: Switching workspaces does not always redraw everything necessary -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs