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Distorted image on display; Mountain Lion HD4000; p8z77-m pro

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[Solved] Distorted image on display; Mountain Lion HD4000; p8z77-m pro

I'm having issues with my hackintosh properly detecting my display after the apple logo screen on bootup. I can see the gray apple logo fine but when it gets to the login screen the image looks all distorted with lines and it looks like there are three copies spread across the display.
I used iBoot for ivy bridge to install ML 10.8.2 and Multibeast 5.2.1 with options for inboard audio, Ethernet LAN, and the core DSDT free option.

I can get everything working except for this "monitor resolution detection on bootup" issue.

If I put my computer to sleep and then wake, the display looks perfect out of DVI at 1920x1080.
unplugging DVI and plugging back in does not help though.
I've already tried modifying the chameleon.plist with Graphics Mode=1920x1080x32 and also tried setting HD4000PlatformId=8, with no success.

Boot options that didn't help - PCIRootUID= 0 (1 allows only 1024x768 but undistorted), GraphicsEnabler=No

Here's my setup:
i5 3570K using the IGPU HD4000
ASUS p8z77-m pro
auria eq276w (27" ips capable of 2650x1440, dvi, hdmi, dp)
fractal design define mini case

Has anyone been able to fix this issue???

im wondering if I wouldn't have this problem with a dedicated graphics card.
it definitely would make my display shine at 2650x1440 instead of the 1920x1080 that I'm restricted to by my motherboard.
As an aside can anyone recommend a decent but not too expensive compatible video card?
I'll mostly be doing photo editing and some light gaming/video editing.

Appreciate any help on the first issue!!!
 
Could be an issue with your display because it assumes a double-link DVI but the motherboard only provides single-link DVI.
 
[Solved] Distorted image on display; Mountain Lion HD4000; p8z77-m pro

Solved...
I now get 1920x1080 on system boot, without having to put my computer to sleep and wake!

I added the following to my /Extra/org.chameleon.Boot.plist:

<key>device-properties</key>
<string>7f0000000100000001000000730000000200000002 010c00d041030a000000000101060000027fff04002c000000 4100410050004c002c00690067002d0070006c006100740066 006f0072006d002d0069006400000008000000050062011400 00006800640061002d0067006600780000000d0000006f6e62 6f6172642d31</string>


So my entire plist looks like this...

<key>EthernetBuiltIn</key>
<string>Yes</string>
<key>GenerateCStates</key>
<string>Yes</string>
<key>GeneratePStates</key>
<string>Yes</string>
<key>GraphicsEnabler</key>
<string>Yes</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>
<key>UseKernelCache</key>
<string>Yes</string>
<key>HD4000PlatformId</key>
<string>0</string>
<key>device-properties</key>
<string>7f0000000100000001000000730000000200000002 010c00d041030a000000000101060000027fff04002c000000 4100410050004c002c00690067002d0070006c006100740066 006f0072006d002d0069006400000008000000050062011400 00006800640061002d0067006600780000000d0000006f6e62 6f6172642d31</string>


I can't locate the original post that I took this from, but hopefully this helps others.
 
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