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[Help] Color banding on HP Elitebook 8570p with amd 7570m

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Joined
Oct 15, 2016
Messages
6
Motherboard
HP Elitebook 8470p
CPU
Core i5 3320m
Graphics
7570m
Mobile Phone
  1. Android
  2. iOS
  3. Windows Phone
I installed Sierra on my 8470p HP Elitebook without any problem.
But on 8570p as same hardware has a color banding.

I up 2 pictures: take one by phone with color banding and one by screen shot.
I tried to inject EDID, but I couldn't fix it.

Who can help me?
 

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Last edited:
My laptop screen's 15"6. I got EDID:

00 FF FF FF FF FF FF 00 30 E4 58 02 00 00 00 00 00 15 01 04 80 23 13 78 0A 1B E5 9E 59 50 98 26 0E 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 64 32 40 B8 62 84 24 30 40 60 35 40 59 C2 10 00 00 19 98 21 40 B8 62 84 24 30 40 60 35 40 59 C2 10 00 00 19 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02 00 0C 49 FF 0A 3C 64 29 2D 41 64 00 00 00 00 1F
 
I installed Sierra on my 8470p HP Elitebook without any problem.
But on 8570p as same hardware has a color banding.

I up 2 pictures: take one by phone with color banding and one by screen shot.
I tried to inject EDID, but I couldn't fix it.

Who can help me?

You should look into the EDID fix that is part of the old ProBook Installer.
 
Thank you.
I don't known what wrong in my EDID.

I can't export to vga and displayport although 8470p can do.

Do you give me some advices, please!
 
Thank you.
I don't known what wrong in my EDID.

There is a script in the PBI-CE code that you should look at.

I can't export to vga and displayport although 8470p can do.

VGA not supported.
DP port is probably an issue with the FBName you're using.
 
Sorry, I'm a newbie!

How to use ioregpbi and fixedidpostinstall files?

I injected a edited EDID but it didn't affect and system run a non edited EDID.

My edited EDID:

00 FF FF FF FF FF FF 00 30 E4 58 02 00 00 00 00 00 15 01 04 90 23 13 78 0A 1B E5 9E 59 50 98 26 0E 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 64 32 40 B8 62 84 24 30 40 60 35 40 59 C2 10 00 00 19 98 21 40 B8 62 84 24 30 40 60 35 40 59 C2 10 00 00 19 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02 00 0C 49 FF 0A 3C 64 29 2D 41 64 00 00 00 00 0F

Code:
<key>Graphics</key>
    <dict>
        <key>DualLink</key>
        <integer>1</integer>
        <key>EDID</key>
        <dict>
            <key>Custom</key>
            <data>
            AP///////wAw5FgCAAAAAAAVAQSQIxN4ChvlnllQmCYOUFQAAAAB
            AQEBAQEBAQEBAQEBAQEBZDJAuGKEJDBAYDVAWcIQAAAZmCFAuGKE
            JDBAYDVAWcIQAAAZAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgAMSf8K
            PGQpLUFkAAAAAA8=
            </data>
            <key>Inject</key>
            <true/>
            <key>ProductID</key>
            <string>0x0258</string>
            <key>VendorID</key>
            <string>0xE430</string>
        </dict>
        <key>FBName</key>
        <string>Elodea</string>
        <key>Inject</key>
        <dict>
            <key>ATI</key>
            <true/>
            <key>Intel</key>
            <false/>
            <key>NVidia</key>
            <false/>
        </dict>
        <key>LoadVBios</key>
        <true/>
        <key>NvidiaSingle</key>
        <false/>
        <key>VRAM</key>
        <integer>1024</integer>
        <key>VideoPorts</key>
        <integer>4</integer>
        <key>ig-platform-id</key>
        <string>0x01660000</string>
    </dict>
 
Last edited:
Sorry, I'm a newbie!

How to use ioregpbi and fixedidpostinstall files?

I injected a edited EDID but it didn't affect and system run a non edited EDID.

My edited EDID:

00 FF FF FF FF FF FF 00 30 E4 58 02 00 00 00 00 00 15 01 04 90 23 13 78 0A 1B E5 9E 59 50 98 26 0E 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 64 32 40 B8 62 84 24 30 40 60 35 40 59 C2 10 00 00 19 98 21 40 B8 62 84 24 30 40 60 35 40 59 C2 10 00 00 19 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02 00 0C 49 FF 0A 3C 64 29 2D 41 64 00 00 00 00 0F

Code:
<key>Graphics</key>
    <dict>
        <key>DualLink</key>
        <integer>1</integer>
        <key>EDID</key>
        <dict>
            <key>Custom</key>
            <data>
            AP///////wAw5FgCAAAAAAAVAQSQIxN4ChvlnllQmCYOUFQAAAAB
            AQEBAQEBAQEBAQEBAQEBZDJAuGKEJDBAYDVAWcIQAAAZmCFAuGKE
            JDBAYDVAWcIQAAAZAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgAMSf8K
            PGQpLUFkAAAAAA8=
            </data>
            <key>Inject</key>
            <true/>
            <key>ProductID</key>
            <string>0x0258</string>
            <key>VendorID</key>
            <string>0xE430</string>
        </dict>
        <key>FBName</key>
        <string>Elodea</string>
        <key>Inject</key>
        <dict>
            <key>ATI</key>
            <true/>
            <key>Intel</key>
            <false/>
            <key>NVidia</key>
            <false/>
        </dict>
        <key>LoadVBios</key>
        <true/>
        <key>NvidiaSingle</key>
        <false/>
        <key>VRAM</key>
        <integer>1024</integer>
        <key>VideoPorts</key>
        <integer>4</integer>
        <key>ig-platform-id</key>
        <string>0x01660000</string>
    </dict>

I don't really remember the details of what the EDID fixer does in PBI-CE.
You will need to read the code in the script and apply it to your situation.
 
I successfully fixed by FixEDID.app. I installed a kext was created by this app after failed EDID injections.

Thanks for your help.
 
I successfully fixed by FixEDID.app. I installed a kext was created by this app after failed EDID injections.

Thanks for your help.

No need for a kext. You can simply inject a modified EDID.
 
What FBName is amd 7570m work well with?
I patched with Elodea and it showed: 7650m with 1024 gram, but failed to export to DP and VGA.

Would you give me a "ati-personality.pl" file for Sierra?

And How is a true structure code of EDID injection?
I tried to inject a EDID by many different ways, but they failed ( it worked with a EDID kext).
 
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