I am also seeing this issue, or at least something like it. I'll attach the relevant images and then additional system info and a description of what I'm seeing.
** Attachment added: "workspace switcher showing white window on all workspaces" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/935630/+attachment/2770610/+files/white_window-all_screens2.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/935630 Title: White rectangular To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/935630/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
