AMD 7850 Problems with more than 2 displays

[raggatah]

Hi.I have problems getting XFX 7850 to work with more than 2 displays in Mavericks(official release),I have used 3 monitors on 10.8.3 without a problem connected to the 7850 and 1 connected to the iGPU-Intel HD4000 (total of 4 displays).Now in Mavericks I can run 7850 as primary during the installation and after the installation with no problems ,but with only 2 displays,if I connect 3 displays my PC freeze and I have to restart it.I just edited 2 kexts and install them with Kextbeast ,as I did in 10.8.3.,but in 10.8.3 I connected there 3 displays without problems.If I use GraphicsEnabler=Yes , I get Memory allocation error,with GE-No it is find as 7xxx ,but I have Full acceleration.My problem is I want to connect all of my displays to the 7850 without my PC freezing.If there is a solution I will be very grateful.Thank you and have a nice day.

 

[raggatah]

Anyone ?

 

[Sunman]

how you managed to run two displays? Any special tricks?
I have issues running more than single display with my Sapphire HD 7870 OC (2DVI , 1HDMI 1DP)

 

[raggatah]

Not special trick,Just edited the kexts and then install them as Step 9
Here is how I edited it this is for 7850 with framebuffer for 7850.Your framebuffer is different and I do not know which is for 7870.
1. Open /S/L/E find AMD7000Controller.kext (and made a backup)
2. Right click and 'Show package contents'
3. Go to Contents
4. Copy Info.plist to your desktop
5. Edit Info.plist with text edit:
a ) Use find tool to find 0x68181002
b ) Replace 0x68181002 with 0x68191002
c ) Save file
6. Copy Info.plist back to kext content folder
7. Back in S/L/E find AMDRadeonX4000.kext (and made a backup)
8. Repeat steps 2-5.
9. Patch them with KextBeast