Dual Displays on HDMI + DVI on GA-Z77M-D3H-MVP with HD4000

[pgr1]

Dual Displays on HDMI + DVI on GA Z77M-D3H-MVP with HD4000

I've been doing a significant amount of reading on dual display support including the official HD4000 thread (http://www.tonymacx86.com/graphics/60010-official-hd-4000-support-4.html) and I keep seeming to have issues with getting dual displays working on the integrated graphics. Here's my rig:

GA Z77-D3H-MVP
Core i5-3570
8GB Samsung RAM (2 x 4GB)
Transcend 256GB SSD
MacPro system definition


Here are the symptoms when plugged into DVI and HDMI ports, single display on HDMI works fine without any issues.

1. Graphics on DVI port are garbled/"etched" on UEFI/Boot Screen, Chimera bootloader, and OS X Load Screen on DVI Screen
2. DVI screen goes blank at login screen, after logging in the left monitor will report an unusable signal and will flash randomly on and off with garbled display output

I originally had GraphicsEnabler set to yes in the Chameleon Boot.plist then tried disabling it and using several different device properties key/string combos as provided on the HD4000 thread but I can't seem to get it right.

Can anyone with a similar config (GA Z77 board using HDMI + DVI on HD4000 integrated) post their full Boot.plist and any other tweaks they had to do (Multibeast config, UEFI/BIOS options, etc) so that I could see where I may be going wrong? Thank you very much in advance for any assistance you can provide!

 

[pgr1]

I did eventually get this configuration to work. The following chameleon.Boot.plist did the trick:

<?xml version="1.0" encoding="UTF-8"?>​

<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">​

<plist version="1.0">​

<dict>​

<key>EthernetBuiltIn</key>​

<string>Yes</string>​

<key>GenerateCStates</key>​

<string>Yes</string>​

<key>GeneratePStates</key>​

<string>Yes</string>​

<key>GraphicsEnabler</key>​

<string>No</string>​

<key>Graphics Mode</key>​

<string>1920x1200x32</string>​

<key>device-properties</key>​

<string>7f0000000100000001000000730000000200000002010c00d041030a000000000101060000027fff04002c0000004100410050004c002c00690067002d0070006c006100740066006f0072006d002d006900640000000800000005006201140000006800640061002d0067006600780000000d0000006f6e626f6172642d31</string>​

<key>Kernel</key>​

<string>mach_kernel</string>​

<key>Kernel Flags</key>​

<string>darkwake=0</string>​

<key>Legacy Logo</key>​

<string>Yes</string>​

<key>Timeout</key>​

<string>2</string>​

</dict>​

</plist>​

 

[andwhycted]

Similar situation, but in the end what solved my problem (after finding the right hardware id) was:

- unplug DVI, leave HDMI
- boot up (I actually booted a Windows partition)
- shutdown
- plug in DVI
- reboot windows/osx

I find it ridiculous after messing so much with device ids and reading tons of pages !