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Hi! This method isn't working for me. DVI-monitor is black( Which "ig-platform-id" do you using? May be you can attach yours config.plist? Please help. UPD. But this scheme works much better! I should "turn off" - "turn on" cable of HDMI-monitor and both monitor will start working.

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1. ig-platform-id: 0x19120000 2. Before turn on plug only DVI Monitor (It is very important) 3. After logged in plug HDMI Monitor. HDMI Monitor is working, DVI monitor isn't working (it is normal) 4. In SwitchResX change resolution of DVI monitor (for example 800х600) 5. Wait 1 seconds (or more)...

Hight resolution isn't work (2560x1600) (HD530)

Hi! High resolution don't work (2560x1600) (HD530/LG UltraWide). SwitchResX is working bad (set anyway 1920x1080). What can I do with this? Thanks!

Hi! Here's what I did to have two monitors (I do not know what helped): - Updated to 10.12.6 - I downloaded the latest IntelGraphicsFixup 1. I connect only DVI 2. I'm loading Sierra 3. I connect HDMI 4. I change the resolution of the monitor several times through SwitchResX 5. The second...

same problem. second monitor is black

Try old version macOS 10.12.2!

same problem