Extra display shown in Display Preferences

I've just updated my Hackintosh to High Sierra using this guide. It installed fine, but my r9 390 wasn't working correctly. So I tried out a few things from this thread.

Everything seems to be working fine now with the full 8GB vram showing. I have a dual monitor setup and both screens are working fine (one on HDMI, the other on DisplayPort).

However, a third monitor is being displayed in the Display Preferences with the name 'Display' (the others are '2460G5 Display', my monitors) and showing as 30.5-inch, whereas my monitors are 24-inches.

This wouldn't be a problem, but I can move my mouse to where the screen is positioned in the Display Arrangement and it will act as if there is a monitor there.

Is there a reason this third monitor is available? Thanks.


ATI Fake ID: 0x67B01002

FB Name: Radeon

Inject Intel: False

Inject ATI: True

Load VBios: True


AMD R9 390

Intel 4600k

8GB Memory

submitted by /u/djdmorrison
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