12 replies to this topic

[giofrida]

HOW TO: Advanced EDID Injection

Hi guys! I recently discovered with EDID injection how to add optional features: New Resolutions and Apple MBP Display Injection!

~Requirements:

• PlistEdit Pro
  
• EDID Injected

Ok, let's start:

Firstly, you need to inject your screen with this useful guide. Make sure you have injected it successfully.

~Apple MBP Display Injection:

1. Open your display file with PlistEdit Pro

2. Add this key in the Root of the file:

<key>dmdg</key>
<data>
AAAAAg==
</data>

3. Rename the string DisplayProductName as this:

<key>DisplayProductName</key>
<string>Color LCD</string>

4. Click 'Sync outline ↑' to sync the keys added to the file.

Proof:

~Adding New Resolutions:

1. Open your display file with PlistEdit Pro

2. Add this key in the Root of the file:

<key>scale-resolutions</key>
<array>
</array>

3. Now, add a new Sibling in scale-resolution

4. Change the class from String to Data

5. Open a Hexadecimal Converter/Decimal Converter (you can find some online)

6. Now we must change the value to add a new resolution:

Example:

That value will add the resolution 1280x800:

00000500 00000320 00000001

Let's examine how it works:

00000500 (Hex) > 1280 (Dec)

00000320 (Hex) > 800 (Dec)

00000001 (Hex) > 1 (Dec) <-- This one is not important

7. You can add all the resolutions you want, from your max resolution of the screen to 800x600.

8. Click 'Sync outline ↑' to sync the keys added to the file.

That's my display file: (it's for reference only)

<?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>DisplayProductID</key>
<integer>8074</integer>
<key>DisplayProductName</key>
<string>Color LCD</string>
<key>DisplayVendorID</key>
<integer>1711</integer>
<key>IODisplayEDID</key>
<data>
AP///////wAGr3SAAAAAAAEQAQOAIRV4Chz1l1hQjicnUFQAAAABAQEBAQEBAQEBAQEB
AQEBxxsAoFAgFzAwIDYAS88QAAAYAAAADwAAAAAAAAAAAAAAAAAgAAAA/gBBVU8KICAg
ICAgICAgAAAA/gBCMTU0RVcwOCBWMCAKAEU=
</data>
<key>dmdg</key>
<data>
AAAAAg==
</data>
<key>scale-resolutions</key>
<array>
  <data>
  AAAFAAAAAyAAAAAB
  </data>
  <data>
  AAAFAAAAAwAAAAAB
  </data>
  <data>
  AAAFAAAAAtAAAAAB
  </data>
  <data>
  AAAEgAAAA2AAAAAB
  </data>
  <data>
  AAAEgAAAAtAAAAAB
  </data>
  <data>
  AAAEAAAAAwAAAAAB
  </data>
  <data>
  AAAEAAAAAlgAAAAB
  </data>
  <data>
  AAAEAAAAAkAAAAAB
  </data>
  <data>
  AAADIAAAAlgAAAAB
  </data>
</array>
</dict>
</plist>

Tell me if these methods work for you. Maybe you need QE/CI (or multiple resolutions only) to add resolutions into display file.

-giofrida

[p.H]

gotta have a try
one more question,
are we capable switching to the newly added resolution ?

[giofrida]

Are you telling about retina? The response is no. Because the max resolution you can add is that of your display.

[p.H]

giofrida, on 30 August 2012 - 05:51 AM, said:

Are you telling about retina? The response is no. Because the max resolution you can add is that of your display.

nope，my display max resolution is 1366*768
if i add a resolution for example 1360*720 can I switch to it ?

[pippox0]

Usefull, i wanna give a try for my notebook ....

[giofrida]

Yeah, tested with 1279x799 resolution (just for testing)

[HUSABER]

Hi,how to fix only this?
Built-in spdisplays_display

Attached Files

•  Screen Shot 2012-08-31 at 2.34.39 PM.png   1.07MB   121 downloads

[giofrida]

Firstly, inject your EDID with this guide (use solution A)
Then, if you want (only if you want) you can additionally inject your EDID as Color LCD (EDID used in MacBooks) => That's only a cosmetic mod

[p.H]

HUSABER, on 31 August 2012 - 11:38 AM, said:

Hi,how to fix only this? Built-in spdisplays_display

your LCD's name is same to mine
however I manage to make it work last night ,so now I'm in Color LCD now
this's before:


this's after:


I've been testing for resolution
it works and when you switch between those resolutions
it works back again. gorges.!

[HUSABER]

Why for me dont work? Who is wrong?Terminal or iOregistryExplorer?

Attached Files

•  Screen Shot 2012-09-01 at 1.36.50 PM.png   369.36K   75 downloads

[styrian]

HUSABER, on 01 September 2012 - 07:50 AM, said:

Why for me dont work? Who is wrong?Terminal or iOregistryExplorer?

You have to enlarge your Terminal window about three times as brought as your monitor is. IODisplayEDID must have no "$" at the end. This is also wirtten in the mentioned guide. After pasting the example plist to the lower window of PlistEdit Pro you have to remove the spaces at the beginning of each line to get an completly left bounded list. (On this I have stuck, as I have done my forced EDID)

[juanerson]

Type these three commands, one at time, that´s a easy way to get your own values (in hexadecimal) for the injection of the EDID:

ioreg -n AppleBacklightDisplay -lw0 -x | grep DisplayVendorID
ioreg -n AppleBacklightDisplay -lw0 -x | grep DisplayProductID
ioreg -n AppleBacklightDisplay -lw0 -x | grep IODisplayEDID

The output example from my desktop PC:
 Captura de pantalla 2012-12-05 a la(s) 00.18.30.png   72.43K   37 downloads

[YuTech]

Hello.

I have a HP Pavilion DV6 with switchable Graphics. One onboard Intel HD 3000 and one extern ATI Raedon 6770M.
I cannot turn off the Intel HD 3000 in the BIOS, so Mountain Lion will only use the Intel, although it recognizes the ATI:



Do you think I can "tell" my Screen, which Graphiccard it should use by changing something in the EDID?

I hope you have any ideas and can help me.
Thank you