feydin Posted September 19, 2016 Share Posted September 19, 2016 I'm having some problems with the Nvidia driver, have anyone seen this before: Everythin is just fine with a SINGLE monitor running off DP or DVI. If I boot with BOTH monitors attached (DP + DVI) both screens goes to sleep, just like they would do if AGDPFix was not applied on El Capitan.If I boot with a SINGLE monitor and then plug in the other monitor, BOTH come to life! I am currently at iMac17,1 for full Skylake support, but tried other SMBIOS-Settings without success. I am runnin an 980TI. Update to latest Clover 3751 did not solve this aswell. Any ideas where to search? 1 Link to comment Share on other sites More sharing options...
bbeepp Posted September 21, 2016 Share Posted September 21, 2016 Have you tried iMac 14.2 SMBIOS? Link to comment Share on other sites More sharing options...
feydin Posted September 21, 2016 Author Share Posted September 21, 2016 Thanks for your Reply. Yes i did - no difference sadly. Link to comment Share on other sites More sharing options...
bbeepp Posted September 21, 2016 Share Posted September 21, 2016 Will try Sierra later and report back. I have the same GPU and two monitors as well. Link to comment Share on other sites More sharing options...
feydin Posted September 21, 2016 Author Share Posted September 21, 2016 Great, thanks. Link to comment Share on other sites More sharing options...
bbeepp Posted September 22, 2016 Share Posted September 22, 2016 It's working properly with two monitors. One is connected to DVI and second to DP port. There is no need to turn off the second screen before login. Link to comment Share on other sites More sharing options...
feydin Posted September 22, 2016 Author Share Posted September 22, 2016 Strange, thanks for the information. Anyone else with this problem? I dont know how to debug this issue. Further information: - Latest nvidia webdriver - AGDPFix used kexts: - FakeSMC + Sensors - CodecCommander - GenericUSBXHCI - IntelMausiEthernet - USBInjectAll - Shiki - realtekALC My config.plist, maybe there is some error? http://pastebin.com/NfgfY2Mw Link to comment Share on other sites More sharing options...
bbeepp Posted September 22, 2016 Share Posted September 22, 2016 Try iMac 14.2 SMBIOS but without AGDPFix in clover. And maybe disable Shiki – add -shikioff argument to boot-args. Link to comment Share on other sites More sharing options...
Twa Posted November 17, 2016 Share Posted November 17, 2016 Any fix for this problem ? Link to comment Share on other sites More sharing options...
feydin Posted November 17, 2016 Author Share Posted November 17, 2016 No, just a workaround. I switched from DVI to HDMI for the second Monitor and it works like a charm. Just DVI seems to make problems. I heard that DVI to HDMI Adapters will work aswell. Link to comment Share on other sites More sharing options...
Twa Posted November 18, 2016 Share Posted November 18, 2016 I hope this helps somebody. If you have multiple monitors and are getting black screens on 10.12 even after applying the AGDPfix, but can login fine with only one monitor - trying turning on your CSM support in your BIOS. That fixed it for me. My setup is skylake, 980Ti, asrock z170 with clover iMac 17,1 profile. Found this trick to active boot with 2 Display by @jrnewell, but you will get a small problem that is uncorrect resolution at boot screen (both at clover and mac bootscreen) 1 Link to comment Share on other sites More sharing options...
marhesk Posted March 7, 2017 Share Posted March 7, 2017 I have on board HD530 Intel and boot from sierra 10.12.1 with dual displays; first port HDMI second port DVI-D but i got the same problem too. Link to comment Share on other sites More sharing options...
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