Comment 41 for bug 89746

i haven't tried it yet but it seems to be the response to our problem..
if it really works, i'll comment again immediately..

i have had some search results and when i've had a look at them; i've seen anybody, who has the problem, uses a laptop with amd turion x2 cpu - branded as "hp"..

http://wiki.cchtml.com/index.php/Ubuntu_Dapper_Installation_Guide#Black_Screen_when_supposed_to_see_login_screen