Well, I'm not entirely sure what's going on here - but I suspect it's a driver issue. I'm going to mark this as a duplicate of bug #1104373, which is the catch-all bug for "black screen" issues.
Well, I'm not entirely sure what's going on here - but I suspect it's a driver issue. I'm going to mark this as a duplicate of bug #1104373, which is the catch-all bug for "black screen" issues.