Unable to rotate display on primary graphics card (GTX 660 Ti)

[OSXcody]

Hey guys,

I'm currently running 4 monitors.
2 are running off my primary GPU (MSI GTX 660 Ti)
2 are running off my secondary GPU (EVGA GeForce GT 640)
Mobo is GA-Z77X-UD5H

When I try to rotate the displays on my primary GPU (GTX 660 Ti) the screen just goes black. I can see the cursor, but nothing else.
However, rotating the displays on my secondary GPU (GT 640) works fine.

Any advice on how to get all these display rotating properly? Thanks!

org.chameleon.Boot.plist:

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>GraphicsEnabler</key>
<string>No</string>
<key>Graphics Mode</key>
<string>2560x1440x32</string>
<key>Timeout</key>
<string>3</string>
</dict>

 

[EvgeniX]

did you try to install last nvidia drivers?

 

[derpuma]

Isnt it possible to run all your displays at your 660 Ti?
It should handle up to 4 Screens? right?

 

[greatest]

Unable to rotate display on primary graphics card (GT 640)

This is a similar issue to me, I can not rotate screens on my first/second card.
I have got around this before screwing with the init boot peg/pci/pci2 just installed the gt640 and same problem, can not seem to fix this time.. any suggestions, I have used efi string in boot plist before, and am using a dsdt.aml but no longer adding efi strings with the new cards as natively supported ???