Comment 25 for bug 447765

I just noticed what I think is the same bug. Whenever I try to switch to a console using e.g. Ctrl+Alt+F1, my display says "no signal" and turns off until I switch back to the desktop. This is newish behavior, though I don't remember exactly when I last needed a console. In any case, it wasn't like this in October when I installed Karmic.

I'm using the open source ati radeon driver and have enabled Proposed updates, in case either makes any difference. I'd be happy to give more info or try something if that would help fix this.