kba Posted August 1, 2012 Share Posted August 1, 2012 Hi there, I've just recently assembled myself a new Mountain Lion Hackintosh, and almost everything is working perfect, except OS X won't seem to allow me to use more than two monitors. My build contains Intel Core i7 I7-3770K 8 MB Gigabyte GA-Z77X-UD3H Gigabyte GTX 670 WindForce OC And on top of that, I have three monitors. The GTX 670 has 4 outputs: 2 x DVI, 1 x DisplayPort and 1 x HDMI Currently, I have two monitors connected, both using DVI. When I connect a third monitor using the DisplayPort, one of my DVI monitors simply goes black, and I don't know what to do about it or where to even start. The GTX 670 worked right ouf of the box with full acceleration after installation. Any ideas on how to make GTX 670 detect and use the three monitors simultaneously? If that's not possible, I'd alternatively just like to be able to connect the third monitor to the integrated HD4000 graphics card. I have tried this, but OS X seems to completely ignore the HD4000, even if I disconnect the other monitors. I use GraphicsEnabler=No and iMac 12,2 system definition, because I get a kernel panic with Mac Pro 5,1. Any help is appreciated! :-) If you need any additional information, just ask. Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/ Share on other sites More sharing options...
Himlaklar Posted August 25, 2012 Share Posted August 25, 2012 Three monitors is not possible, it's a driver issue and not solutions exist. The only option is to wait for Apple to release an updated driver. And it's not even sure they ever will release one for 670 with 3 monitor support. My "solution" was to sell all three monitors and get 2x27" cinema displays instead. Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/#findComment-1847454 Share on other sites More sharing options...
Rampage Dev Posted August 25, 2012 Share Posted August 25, 2012 Use DSDT injection for the Nvidia GTX 670 and you will understand why it only supports 2 monitors: http://rampagedev.wordpress.com/2012/07/31/how-to-inject-your-nvidia-fermi-graphic-card-into-a-dsdt/ As for getting the HD4000 working temporally remove the GTX 670 and change you simbios to Mac Mini 5,1 then work on getting the HD4000 working and one you do reinstall your GTX 670 and you will be up and running with 3 monitors. Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/#findComment-1847557 Share on other sites More sharing options...
Himlaklar Posted September 20, 2012 Share Posted September 20, 2012 Use DSDT injection for the Nvidia GTX 670 and you will understand why it only supports 2 monitors: http://rampagedev.wo...rd-into-a-dsdt/ As for getting the HD4000 working temporally remove the GTX 670 and change you simbios to Mac Mini 5,1 then work on getting the HD4000 working and one you do reinstall your GTX 670 and you will be up and running with 3 monitors. Do you mean running one monitor on the built in GPU and the other two monitors on GTX 670? Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/#findComment-1854379 Share on other sites More sharing options...
Rampage Dev Posted September 20, 2012 Share Posted September 20, 2012 Do you mean running one monitor on the built in GPU and the other two monitors on GTX 670? Correct. Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/#findComment-1854408 Share on other sites More sharing options...
Himlaklar Posted September 21, 2012 Share Posted September 21, 2012 Correct. Hm, doesn't that affect performance? Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/#findComment-1854536 Share on other sites More sharing options...
Rampage Dev Posted September 21, 2012 Share Posted September 21, 2012 Hm, doesn't that affect performance? No. The HD4000 is actually not a bad GPU. Just try the setup that I suggested... Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/#findComment-1854572 Share on other sites More sharing options...
Himlaklar Posted September 22, 2012 Share Posted September 22, 2012 I have a HD3000 (2500K CPU) and i got it working successfully using the right device ID. - 1 Monitor on HD3000 - 2 monitors on GTX670. I'm having a problem though, in Photoshop HD3000 is choosen by default and i think that games are being run via HD3000 instead of GTX670 because i'm getting huge frame-drops and can run games barely on medium settings. Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/#findComment-1854934 Share on other sites More sharing options...
Rampage Dev Posted September 23, 2012 Share Posted September 23, 2012 Yea, it has to compensate for the other monitor. So it lowers the capability of what the one card to do. As for Adobe the HD3000 is not chosen by default and has nothing to do with the GPU but what monitor you have the main screen of adobe open on. The only way you are going to get the performance yo want is to buy another GTX 670... Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/#findComment-1854989 Share on other sites More sharing options...
Himlaklar Posted September 23, 2012 Share Posted September 23, 2012 I guess i have to live with it, since i only have one PCI-Express slot on this mini-itx motherboard. Thanks for the replies! Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/#findComment-1855062 Share on other sites More sharing options...
Generic George Posted October 5, 2012 Share Posted October 5, 2012 I guess i have to live with it, since i only have one PCI-Express slot on this mini-itx motherboard. Thanks for the replies! You need to update to 10.8.2 first, but nVidia just released new drivers, which by all accounts will support 4 monitors on a 670. http://www.nvidia.com/object/macosx-304.00.05f02-driver.html Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/#findComment-1858276 Share on other sites More sharing options...
Rampage Dev Posted October 5, 2012 Share Posted October 5, 2012 Only have seen 3 out of 4 outputs working on systems with the new drivers. White screen on the 4th monitor from early reports. Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/#findComment-1858277 Share on other sites More sharing options...
khe91 Posted October 5, 2012 Share Posted October 5, 2012 I got 4 screens working with the NVidia drivers with a Asus GTX670. 1 DP 2560x1600, 1 DVI 2560x1600, 1 DVI 1600x1200, 1 HDMI 1600x1200 Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/#findComment-1858322 Share on other sites More sharing options...
Himlaklar Posted October 14, 2012 Share Posted October 14, 2012 YES! I got 3 screens working with my Gigabyte GTX670!! 1xDVI 2560x1440, 1xDVI 2560x1440, 1xDP 2560x1440 Just install these drivers AFTER 10.8.2 is installed: http://www.nvidia.co...f02-driver.html I even got 15-20FPS better performance in games! Link to comment https://www.insanelymac.com/forum/topic/281329-triple-monitor-with-gtx670-and-ivy-bridge/#findComment-1860362 Share on other sites More sharing options...
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