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Question imac 12.2  

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(@peter_smith)
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Joined: 2 months ago
 

Hey everyone !

 

I have the following - Imac 12.2 with Intel Core i7 - 2600 / Radeon HD 6970M .

First of all I've installed Windows 10 (1909) from usb UEFI .

I've disabled internet connection for the moment of installing .

Then I've installed bootcamp drivers from USB.

It has installed Radeon HD 6970M driver version 13.250.28.1000

Had no sound , used this guide from forum , loaded dsdt-modified.aml ( GUIDE DSDT override eGPU error 12 fix)

Now i have sound after reboot -  Cirrus Logic cs4206B.

Also disabled applehfs.sys had VSS errors ( could not create restore points )

 

So if I enable internet connection Windows goes driver update and downloads driver and I get BSOD after that.

Solution -

I've used wushowhide.diagcab to hide this - Advanced Micro Devices , Inc. Driver update for AMD Radeon HD 6900M Series.

 

If I try to force enable Windows core isolation through registry I get BAD Image on AMD radeon hd 6970M driver( HypervisorENforcedCodeIntegrity)

 

So two questions :

1) I have no Intel HD graphics 2000 in device manager , is it fine ? I though i7 2600 have it.

2) Any way to update Radeon HD 6970M driver to support core isolation feature ?

 

Can upload working dsdt-modified.aml if someone need it.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@peter_smith)
New Member
Joined: 2 months ago
 

Update - Changing display brightness in windows does not work.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@peter_smith)
New Member
Joined: 2 months ago
 

Update - FOund out that Intel HD 2000 not supported in Windows 10 thats why it's missing in device manager.

Secondly - Found amd drivers for HD6970M on amd website ( latest one with Windows 8.1 64 bit version 14.201.1009 now version )

brithness control in windows 10 works now , though what not working is Night light button( nothing happens) but that's not big deal since u can use AMD Catalyst control panel and change Kelvin monitor settings.

 

Thank this forum and all who make fix DSDT override !

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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