1 Reply Latest reply: Jan 11, 2014 8:03 AM by Bill Connelly
Bill Connelly Level 1 Level 1 (20 points)

Under Snow Leopard, 10.6.8, my new Dell U2713H doesn't come on when I Start Up my Mac Pro. I have to turn it off from energy saving mode, and back on. I also miss the spinning starting up window completely. Wonder what I would do if I needed to see a verbose startup.


It displays a message saying I need to correct the 2560x1440 @ 60Hz selection. I believe it selects the proper high resolution and frequency ... but to have to turn the monitor off / on isn't right.


I'm using the Dual DVI-D connector supplied by Dell with my Mac Pro ATI Radeon HD 2600, which has 2 dual DVI ports.


It works under 10.9.1 Mavericks ... and I also get full 2560 x 1440 @ 60Hz.


I tried the EDID Force RGB override many people correct color while using mini Display port connectors ... but no change.  (Reference: http://embdev.net/topic/284710#3027030)


Can I use something from OS X 10.9 in my 10.6.8 installation that would correct this issue?



Mac Pro, Mac OS X (10.6.8), (Early 2008) 3.0GHz Intel Xeon x 2