Comment 69 for bug 940603

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Daniel van Vugt (vanvugt) wrote :

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.