I have a nx8220 laptop with a ATI video card and do a fair number of presentations(but none lately) . I'm currently using the Radeon drivers and yesterday need to do a presentation and could not get the external VGA port to work. All I usually do is connect the cable and restart x.
I booted to Windows and it worked fine. I settled on this driver and all else works fine for me but I do not play games nor am I interested in fancy graphics.
Could the lack of support for the external port be a driver issue? I cannot recall what driver i was using last time I did a presentation and am reluctant to move from radeon unless I have to.
I'm very busy and do not have time to play around with the laptop just now.