8 Replies Latest reply: Oct 17, 2011 5:07 AM by youngmacdonald
csicj Level 1 (0 points)

Hi, I'm having a problem with my Mac Pro after installing OSX Lion this morning. I was hoping someone would be able to help. After installing Lion, my Philips monitor won't work. My monitor says I need to change the resolution to 1280x768 but when I connect my Mac Pro to my second monitor and try and change the settings for the Philips monitor, there is no option for that resolution.


I'm using an early 2009 Mac Pro. The Philips monitor is connected through VGA and a VGA to DVI adapter.


I had no problems with SL; and I have no idea why it is not working with Lion.



If you could help me fix it, I would be so happy.

Mac Pro, Mac OS X (10.7)