Comment 146 for bug 862430

I can confirm that the blank terminal is not related to this ppa, or to compiz for that matter. I think it's an nVidia driver issue which appeared a long time ago (maybe 2 or 3 years). I used to have a laptop with nVidia card back then. Then after a while I got another laptop with an ATI card and the problem did not appear using the same ubuntu version so that's why I'm guessing it's an nVidia issue.