MacBook Pro Displayport driver

Hi folks,
I've been trying to connect two external monitors to my MacBook Pro from mid 2012 via Displayport's MST (Multi-Stream Transport) feature. Nvidia lists the integrated GeForce GT 650M chipset as supporting Displayport 1.2. So, let's give it a try.
After a good hour of trying different things to make the MacBook even recognize the second screen, I've booted into Windows 7 (via Bootcamp). And bing, the Nvidia Windows driver recognizes both displays and gives me the option to enable two out of three (internal + two external) displays and run both external monitors with 1920x1080 @60Hz. Under Windows I can now work with the two external screens while having the internal one disabled. I can even enable all three, but this mode is really slow and buggy and sometimes crashes Windows.
And now the question to the advanced users: Is there a Mac OS X driver out there for using the MST feature? I've read a lot about the MST capabilities of the Retina MacBooks. But what is with the older ones?
The Windows test proves that the hardware itself is capable of running this configuration. But Apple prohibits me from using this configuration when in Mac OS X.
I'm currently running Mac OS X 10.9.4 on this machine.
Hoping that someone out there has resolved this issue...
Best regards,
Christoph

Hi folks,
I've been trying to connect two external monitors to my MacBook Pro from mid 2012 via Displayport's MST (Multi-Stream Transport) feature. Nvidia lists the integrated GeForce GT 650M chipset as supporting Displayport 1.2. So, let's give it a try.
After a good hour of trying different things to make the MacBook even recognize the second screen, I've booted into Windows 7 (via Bootcamp). And bing, the Nvidia Windows driver recognizes both displays and gives me the option to enable two out of three (internal + two external) displays and run both external monitors with 1920x1080 @60Hz. Under Windows I can now work with the two external screens while having the internal one disabled. I can even enable all three, but this mode is really slow and buggy and sometimes crashes Windows.
And now the question to the advanced users: Is there a Mac OS X driver out there for using the MST feature? I've read a lot about the MST capabilities of the Retina MacBooks. But what is with the older ones?
The Windows test proves that the hardware itself is capable of running this configuration. But Apple prohibits me from using this configuration when in Mac OS X.
I'm currently running Mac OS X 10.9.4 on this machine.
Hoping that someone out there has resolved this issue...
Best regards,
Christoph

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