2560x1440 over HDMI

[Deleted member 1759528]

I have a GA-Z270N-WIFI motherboard, using 630HD graphics, that I'm trying to get working at 2560x1440 over HDMI. From what I read, the best way is to modify the graphics framebuffer so that it has a value of 8 instead of 4. I read about other methods but they don't appear to be compatible with 10.13.2.

I'm a noob (and most of the guides on here are pretty cryptic to me), but what I have so far is this:

<key>Comment</key>
<string>Port 0105 DP to HDMI</string>
<key>Find</key>
<data>AQUJAAAEAACHAQAA</data>
<key>Name</key>
<string>AppleIntelSKLGraphicsFramebuffer</string>
<key>Replace</key>
<data>AQUJAAAIAACHAQAA</data>

I don't know what the two data values should be. Someone wrote that one should look in AppleIntelSKLGraphicsFramebuffer using a hex editor...but I have no idea of what to look for, or what to change.

 

[Deleted member 1759528]

Fixed.

I think this did it:

<key>AddHDMI_8000000</key>
<true/>

 

[Deleted member 1759528]

Okay, that did not fix it... I don't know what did. I had to do a clean install to fix another graphical issue, and now I don't know how to get the proper resolution working.

Does anyone know what data values should be in this:

<key>Comment</key>
<string>Port 0105 DP to HDMI</string>
<key>Find</key>
<data>???</data>
<key>Name</key>
<string>AppleIntelSKLGraphicsFramebuffer</string>
<key>Replace</key>
<data>???</data>


FYI id: 0x59120000