Problem using MacBook Air with a data projector

atlanticza

macrumors 6502a
Original poster
Jul 18, 2008
547
1
Cape Town
Simply put, the data projector won't project an image from my new 11" MacBook Air; but with my 13" Macbook Pro there is no problem whatsoever. I can only assume that the MBA's screen resolution is not that "conventional", or am I wrong? (The data projector, by the way, is a "professional" one, a fixture, used at my university's lecture theatre, and is used with a many varieties of laptops/notebooks, and automatically adjusts to the input.)
 

kave

macrumors regular
Oct 31, 2012
230
57
Sweden
I assume you are using vga?
It seems the new Airs have a problem when connecting using some vga cables.
Try a shutdown and start agin with the cable attached.
 

atlanticza

macrumors 6502a
Original poster
Jul 18, 2008
547
1
Cape Town
Many thanks for the tip, and yes I am using VGA (It worked). But took it one step further: System Preferences > Displays > Arrangement then ticked Display mirroring. Interestingly enough the Arrangement tab is not visible if there is no other display or data projector attached. Again many thanks.