unable to boot OS X when using DVI on a GTX 970

[ahmedjan87]

so im using a dual monitor setup

main one connects with hdmi second with dvi and it all works perfectly on windows

however on osx it refuses to boot on DVI (alone or with hdmi alongside it) as it instantly reboots the PC after the loading bar is finished unless i use nv_disable=1

i removed dvi monitor and booted with HDMI one and everything worked perfectly

any idea what seems to be the issue ? and is it even possible to use DVI on a hackintosh (or even mac os generally) ?

specs are :

i5 6600k

gtx 970

16gb ram

gigabyte GA-Z170X-Gaming 5 motherboard

im using the latest os x sierra installer from the app store with the latest nvidia web drivers

installed using unibeast and then used multibeast for post

 

[Adrian B]

Multi-Screen setup doesn't work properly
This is usually caused by having GraphicsEnabler=Yes when using Chameleon/Chimera or Inject/NVidia/True when using Clover. Change it to No or False respectively to enable multi screen setups.
Another solution would be the need for the Nvidia Web Drivers. Install them and add the boot flag (argument) nvda_drv=1 to your config.

https://www.tonymacx86.com/threads/read-me-first-graphics-setup-troubleshooting.183617/

 

[ahmedjan87]

https://www.tonymacx86.com/threads/read-me-first-graphics-setup-troubleshooting.183617/

already checked it and didn't work
nvda_drv=1 gives the same reboot issue
and drivers are already installed

 

[Adrian B]

Can you connect the second screen once you are at the desktop without it rebooting?

Try using iMac 14,2 as a system definition if you are not already doing so. Check out what similar experience that other folk have had and how they got around the issue:
https://www.tonymacx86.com/search/12046483/?q=dual+screen+reboot+loop&o=date

 

[Fl0r!an]

Is it digital DVI or does it convert to VGA? Analog connections are poorly supported in macOS, so that would explain it.

 

[ahmedjan87]

Is it digital DVI or does it convert to VGA? Analog connections are poorly supported in macOS, so that would explain it.

No it's a DVI to VGA adapter
Is VGA the problem here ? because I've sifted through a few threads from Adrian's post and found a thread with a similar issue that suggested using a displayport to VGA adapter

 

[slim.jim]

No it's a DVI to VGA adapter
Is VGA the problem here ? because I've sifted through a few threads from Adrian's post and found a thread with a similar issue that suggested using a displayport to VGA adapter

The DisplayPort to VGA adapter is an active adapter so the OS sees the VGA display as a DisplayPort connection.

 

[ahmedjan87]

The DisplayPort to VGA adapter is an active adapter so the OS sees the VGA display as a DisplayPort connection.

I'll give it a try tomorrow and see what happens

 

[Fl0r!an]

No it's a DVI to VGA adapter
Is VGA the problem here ? because I've sifted through a few threads from Adrian's post and found a thread with a similar issue that suggested using a displayport to VGA adapter

Yes, passive DVI to VGA is a problem.