Comment 56 for bug 938658

Another bug has been sucking up my bug-fixing time, but I still plan to file a new one.

For now, the main thing I have noted: restoring minimized windows with the Alt-Grave key is where I get blank windows. Restoring with the mouse, or with plain Alt-Tab does not. Alt-Grave does not do it every time; usually within three cycles of minimize-restore. It can happen, on my system at least, when video memory is mostly free, according to nvidia-smi. I haven't been able to correlate the bug with video memory levels, here. Thanks.