Comment 83 for bug 151168

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Chris Halse Rogers (raof) wrote :

Yes, see my comment above: <https://bugs.edge.launchpad.net/ubuntu/+source/compiz-fusion-plugins-main/+bug/151168/comments/72>

Previously, when the card ran out of video memory for window textures, you'd get all-black windows instead of the proper texture (the BWB). Using --indirect-rendering made it easier for the drivers to do this correctly (but you could still get black windows if you tried hard enough).

With the nvidia-glx-new drivers, they've done work to fix the BWB. Now, when you would normally get a black window, instead the memory for that window is leaked into the compiz.real process. And if you try *really* hard, you can still get black windows.

So, anything that used to reduce the incidence of black windows (more video memory, --indirect-rendering) will *reduce* (but not eliminate) the incidence of this bug.

It's probably not worth commenting on this bug anymore. We're pretty sure what's causing it, how it's triggered, what it affects, and that we'll need to wait for nVidia to fix it. More "me too" comments almost certainly won't add any useful new information.