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[Takvorian Xavier <758014@xxxxxxxxxxxxxxxxxx>]

Hi,

Same problem after upgrade from 10.10 to 11.04, with a NVIDIA GeForce 6150 with shared memory.
I suspect his might come from video memory usage. Here is the result of my (limited) experimentations:
After having opened a few windows (full screen or not), I reach a point where the next opened window will be solid white.
At this point, it is still possible for me to get the content of that window by reducing its display size, or that of another window.
If I then switch to a previously opened (and correctly displayed) window, and make it a little bigger, it will get blank too. I can even find a treshold: below a certain window size, content shows; over it, it does not.

I suspect there is something of a "maximum total opened window area":
when reached, any activated window will be plain white.

I think it may be linked to video memory usage, because I've found that
whenever I play Civilization IV over Wine, which uses much more video
memory than a standard desktop app, the total showable window area seems
much smaller.

I hope this might help to correct that serious defect, as well as help
those who experience it...

Xavier

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https://bugs.launchpad.net/bugs/758014

Title:
  ubuntu natty beta nvidia regression - maximize white hang

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