Bug#720329: xserver-xorg-video-radeon: Screen keeping black at start but for the cursor

[Samuel Hym]

Hi Michel

> Does adding radeon.agpmode=1 or radeon.agpmode=-1 to the kernel 
> command line avoid the crashes? 

I added radeon.agpmode=-1, X has now been running fine for 30 minutes or so.
With radeon.agpmode=1 I got no noticeable change of behaviour.

Thank you very much for your swift and precise help!

Best regards
Sam