GTX660 Ti: just 30-bit with 2 monitors

[Melf11]

hey there,
i got a strange failure with my card. When i plug in 2 monitors, i got just 30-bit instead of 32-bit for colours?! If e take one of, it shows up with normal 32-bit. If i install the Nvidia drivers, i got no screen at all.
The Graphicscard is shown up normal in my System.

I changed the Card from 950 GTX to GTX660Ti from a friend, because i always got trouble by loading the nvidia drivers.

my system is:
Gigabyte GA-Z170X-UD5 TH Intel Z170 So.1151
Intel Core i7 6700K 4x 4.00GHz
32GB Corsair Vengeance LPX
and El Captain 10.11.6 (15G1004)
Clover loaded a Mac Pro 3.1, others won't work.

 

[Melf11]

okay, i don't know why that was activated but i solved my problem -.-
in systempreferences -> displays i had selected "scaled resolution" and than the right resolution. now i took "display standard" and now my displays work perfectly.

this might help some other guys ;-D