- Joined
- Aug 27, 2017
- Messages
- 10
- Motherboard
- Gigabyte Z170X Ultra Gaming (rev 1.0)
- CPU
- Intel i7 7700k
- Graphics
- Intel HD Graphics 630, GT 710
- Mac
- Mobile Phone
I think your MB has an HDMI and DVI Port and I don't know if it is possible to have 2 monitors with this configuration. In my case I have an extra DP Port. I boot my custom mac with the HDMI connected and DP unplugged. Once the system has booted, I hot-plug the DP port and I have the dual monitor configurations working. I tried with the DVI port but I couldn't have the configuration working. I know there is a way to change the system graphics ports, but I wasn't able to configure it properly with the DVI port. I hope this explication helps you.I have the 630 Intel Graphics, cannot use dual monitors, it boots with 2 monitors, after a while one of them goes black. Can anyone help? I'm attaching my ioreg and config. Thanks in advance!
I think your MB has an HDMI and DVI Port and I don't know if it is possible to have 2 monitors with this configuration. In my case I have an extra DP Port. I boot my custom mac with the HDMI connected and DP unplugged. Once the system has booted, I hot-plug the DP port and I have the dual monitor configurations working. I tried with the DVI port but I couldn't have the configuration working. I know there is a way to change the system graphics ports, but I wasn't able to configure it properly with the DVI port. I hope this explication helps you.
Need rename GFX0 to IGPU, otherwise dual monitors not work.
HD630 (mine VGA boot up and hotplug HDMI) work fine with 2 monitors, ig-platform-id 0x59120000, from 10.12.6, 10.13.0 dp1 to 10.13.1 beta1, all ok.
HDMI audio, auto patched by AppleALC.kext, no FB connectors patch is required.
Apparently this fix for dual monitors doesn’t work for the HD530 and 10.13. It doesn’t on my machine.
Rename GFX0 to IGPU is the first step.
The following steps may be helpful.
Use most compatible SMBIOS iMac 14.2 if possible.
From Sierra 10.12.6 up, should use ig-platform-id 0x193b0005 for setup, that ensure all ports (5,6,7) are available.
Disable all FB connectors patch, especially 4 display patch 01030403.
Lower primary display resolution before hotplug secendory monitor, it should be in mirror mode during 1st time setup.
If one of the screen is blank out, try switch different resolutions with both screen.
If both screen blank out, may need change all FB connectors from 00040000 to 02000000 for dual monitors setup.
For 0x193b0005, dual monitors setup use only, tested with HD630 using this ig-platform-id (no HD530 on hand).
AppleIntelSKLGraphicsFramebuffer
Find
00000800 02000000 98000000 01050900 00040000 C7010000 02040A00 00040000 C7010000 03060A00 00040000 C7010000
Replace
00000800 02000000 98000000 01050900 02000000 C7010000 02040A00 02000000 C7010000 03060A00 02000000 C7010000
it looks like it is for a HD630 particularly, and I have a HD530 graphics.
Thanks for the advice, but I am using iMac 17,1 SMBIOS. Not ready to change.
I have only DVI-D and HDMI video ports.
Disable all FB Connectors patch
Need rename GFX0 to IGPU, otherwise dual monitors not work.
HD630 (mine VGA boot up and hotplug HDMI) work fine with 2 monitors, ig-platform-id 0x59120000, from 10.12.6, 10.13.0 dp1 to 10.13.1 beta1, all ok.
HDMI audio, auto patched by AppleALC.kext, no FB connectors patch is required.