Comment 5 for bug 888036

This seems to be happening a lot for me recently; apport directs me to bug 905582, but that's been marked Invalid and I think this one is probably better. (Perhaps that bug should be marked as a duplicate?) If it's of any help, it seems to happen most often when I'm playing Steam games.

The proximate cause is obviously that xCount is zero, although it's not clear to me why that should be the case. I'm trying to figure out how to get a bit more information out of gdb ...