Gary_GW

Hi mediamac

I have a MSI R6850 oc /pe and works perfectly in 10.8.3.
Playing Games such as;
Call Of Duty - World at War
Tomb Raider - Underworld
Both smoothley.

All ports working, including HDMI
Card Details;
Device ID: 6739
Vendor ID: 1002

Try the following;
Install Chameleon v2.2svn r2172

with Chameleon Wizard set SMBIOS as iMac 13,1

with Chameleon Wizard set org.chameleon.Boot as folow;
Graphics Enabler = No
AtiConfig = Gibba
AtiPorts = 4

and install the attached kext;

Make certain that you backed up as to recover if things go wrong!!!!

If your card Device and Vendor ID is the same, then it should.

Hope this helps.

Regards

I have attached a System Report as well as a picture.
The manufacturer is Broadcom, it's inexpensive and works 100% in SL, L and ML DP1 up to DP4 all updates.
They come in different colours, choose the red one, the others colours don't work.
No idea why not, no idea.

Hope this helps.

Regards

Here is an easier method;
Just found and tested this a few minutes ago;

Install attached kext in /Extra/Extensions.
Repair permissions and reboot.
It unfortunately states Unknown Nvidia Card else all is working 100%.
Playing Call of Duty 5 flawlessly.

Keep Chameleon settings as in above post.

That's it!

Enjoy!

Hi terrorgen

I have a Point of View, Nvidia GT220 2048 Mb working 100% in ML DP4.

Method as follow;
Extract the Video Card's rom in Windows.
(There's a few methods that can be used to achieve this. I can not remember what I used unfortunately. You will have to Google)

Rename the file with the .rom extension as follow;
Details for my card is as follow;
Vendor ID = 10de
Device ID = 0a20
so that the file looks as follow;
10de_0a20.rom

You will have to get your cards Vendor and Device ID's and implement them as I did above.

Place this file in /Extra in ML DP4.
Install Enoch's Chameleon Bootloader r1999. (Works good for me)
Ensure that you use the following boot flags: GrahicsEnabler=Yes, UseNvidiaROM=Yes and VBIOS=Yes

Dual Monitor, Mirror displays, Resolution and QE/CI all working.

Attached is some screen shots.

Realy hope this helps you.

NOTE: This method has been working ever-since Snow Leopard.

Good luck
Regards

If I am transgressing any rules in posting the above, humble apologies in advance.