Comment 12 for bug 709461

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Doug McMahon (mc3man) wrote : Re: semi-random invisible window with x geometry on top layer possible, all viewport only (one ws though)

 I'm now stalled w/ nvidia having no 3d option if i upgrade X so the validity of any observations may now or shortly be questionable.
There is here a variation of this behavior where some apps will, at 'random', open with no app window visible. In this scenario there is no 'unknown' invisible window present, just the unseen app. (xwininfo will identify the app

While not solely confined to, the most likely time this occurs is when there is a popup associated with the app, either typically or thru present circumstance. ( for instance update manager when there is a partial update popup

In all these cases running compiz --replace restores function and exposes the window