Here is the xwininfo for what I think is an offending white window (triggered from chrome). The window is "IsUnMapped" and is override- redirect too. Override-redirect explains why it's always on top on all workspaces.
Obviously unmapped windows should never be visible. But I believe the Unity minimize handler breaks that rule, so Unity might be the cause. ** Attachment added: "whitewin.txt" https://bugs.launchpad.net/ubuntu/+source/unity/+bug/940603/+attachment/2933439/+files/whitewin.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/940603 Title: white box randomly shows up at top left corner blocking applications from using stuff under it To manage notifications about this bug go to: https://bugs.launchpad.net/compiz-core/+bug/940603/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
