gxsolace Posted March 11, 2015 Share Posted March 11, 2015 Specs:Clover.Yosemite 10.10.2 with latest NVIDIA drivers. GTX 980.MacPro6,1 system definition:One display connected = OK- After booted, connect 2nd display = OKTwo displays connected at boot = reboots instantly at UI loadMacPro5,1 system definition:All OKAnyone have any ideas? Thanks / gx Link to comment Share on other sites More sharing options...
bbeepp Posted December 9, 2015 Share Posted December 9, 2015 Same here with 980 Ti + iMac12.2 definition. How are your displays connected? DP, DVI, HDMI? Mine is one DVI and one DP. Why do you need MacPro6,1 system definition? Link to comment Share on other sites More sharing options...
jura_11 Posted December 13, 2015 Share Posted December 13, 2015 Hi there Try this,in Clover Bootloader/DSDT select or untick those FixDisplay,FixLAN,FixUSB and try again to boot,have same issue with running two different GPU(TitanX and GTX780) and after that I untick those DSDT fixes I can boot and I can use both monitors,although I'm running my displays from TitanX Hope this helps Thanks,Jura Link to comment Share on other sites More sharing options...
bbeepp Posted December 13, 2015 Share Posted December 13, 2015 Thanks jura_11 for the information. Will try this although I suspect the only fix needed is FixDisplay. I also confirm that changing SMBIOS to iMac 14.2 fixes reboot loop with two displays connected. Link to comment Share on other sites More sharing options...
jura_11 Posted December 13, 2015 Share Posted December 13, 2015 Thanks jura_11 for the information. Will try this although I suspect the only fix needed is FixDisplay. I also confirm that changing SMBIOS to iMac 14.2 fixes reboot loop with two displays connected. Hi there I've used above DSDT fixes,you can try to use only one and you will see how it goes,in my case I'm using SMBIOS MacPr6,1 And please check this too Fix: modify the AppleGraphicsDevicePolicy.kext Open Terminal Enter this command (it is one line) sudo nano /System/Library/Extensions/AppleGraphicsControl.kext/Contents/PlugIns/AppleGraphicsDevicePolicy.kext/Contents/Info.plist Arrow down to where you see <key>ConfigMap</key> For the iMac15,1 locate the board-id "Mac-42FD25EABCABB274" and change string below it from "Config2" to "none". For the MacPro6,1 you will do the same thing but for the board-id "Mac-F60DEB81FF30ACF6". For the iMac17,1 you'll have to see which board-id is declared in your config.plist SMBIOS: "Mac-B809C3757DA9BB8D" or "Mac-65CE76090165799A" or "Mac-DB15BD556843C820" and change the appropriate entry to "none". Save the file by pressing Ctrl+O, then enter. Exit by pressing Ctrl+X Rebuild the kernel cache using the following two commands in terminal: sudo kextcache -system-prelinked-kernel sudo kextcache -system-caches Reboot Hope this helps there Thanks,Jura Link to comment Share on other sites More sharing options...
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