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@sazam

agdpmod=pikera is a boot argument not a kernel patch, you need to disable it under nvram section 7C436110-AB2A-4BBB-A880-FE41995C9F82 > boot-args, just remove it and it will be disabled.

 

Spoiler

nvram.png

 

@CyberdevsI think agdpmod=pikera boot-arg allows WhateverGreen to patch AppleGraphicsDevicePolicy.kext and replaces board-id to board-ix to disable boardID checks. I think op is asking how to that kernel patch manually without using WhateverGreen.

12 minutes ago, FirstCustomac said:

@CyberdevsI think agdpmod=pikera boot-arg allows WhateverGreen to patch AppleGraphicsDevicePolicy.kext and replaces board-id to board-ix to disable boardID checks. I think op is asking how to that kernel patch manually without using WhateverGreen.

Yes that boot arg is used with whatevergreen.kext to do exactly as you described but it's not mandatory for all GPUs for example my RX 6800XT doesn't required whatevergreen to work nor the boot args, so it's best if @sazam can explain more about what kind of hardware is used and what's the goal.

  • Like 1

In a case of Clover, if anyone interested, there in a setting in config.plist SMBIOS section 

<key>Board-ID</key>
<string>Mac-FC02E91DDD3FA6A4</string>
The value depends on graphics card. The key works without WhateverGreen.
  • Like 4

https://pikeralpha.wordpress.com/2015/11/23/patching-applegraphicsdevicepolicy-kext/

Edit: Didn't mean to post so soon!
This is the clover patch originally proposed I think. Pretty easy to translate to an OC patch though if your look through the configuration.pdf!

Edited by 1Revenger1
  • 3 weeks later...

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