I have a 3 1920x1080 monitor setup (with 2 dvi and one active dp>dvi adapter) and I just can't seem to get it to work. I follow all the steps, but every time, the monitor connected to the dp goes to sleep and won't wake up.
Which active adapter are you using? Try setting up the monitors at a lower resolution to see if it works. DP->DVI active adapters have trouble with higher resolutions (although it should work with 1920x1080).
Thanks for the reply, I'm using an Accell Single Link DVI > DP adapter. I've tried on lower resolutions and all it does is make it go dark faster... I also sometimes get the hardware disconnect noise...not sure if that helps though.
Edit: Also I have two of these adapters, just in case one was a dud...I'm getting the same problem with both.