Installed it on laptop Benq Joybook P53 first time in my life Debian. After booting the system with the GNU appear here such here the message:

Then everything begins to fade

and fade...

I understand the problem with the wood for the video, the adapter is ATI Radeon HD3450. What to do in this case? It is clear that it is necessary to put the driver, but where and how?
PS
So am I a bit to understand what the second and third line?
P. P. S.
Pictures are clickable, that would be opened through a new window, but for some reason the target="_blank" no channel =(