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[Success] Radeon RX 6800 XT - Big Sur

Joined
May 10, 2012
Messages
131
Motherboard
Asus X299 PRO/SE
CPU
i9-10920X
Graphics
6900XT, W6600, W6800
Mac
  1. Mac Pro
At the of the boot the screen turns off like losing signal or something. Could this be because I have this data in DeviceProperties?
If it recovers before login it is Ok. Mine 6900XT does that too. I also have agdpmod=pikera boot argument.
 
Joined
Oct 6, 2014
Messages
68
Motherboard
Asus Z370i
CPU
I7-8600K Delided
Graphics
RX 6800
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  1. iOS
Has anyone updated to 12.4 with AMD RX6800 and i7-8600K experience freeze issue after couple minutes of system startup? I reverted back to 12.3.1 and it's all good now.
 
Joined
Jun 15, 2012
Messages
508
Motherboard
Gigabyte Z370 AORUS Gaming 7-F13
CPU
i7-8700K OC @ 5.1Ghz
Graphics
RX 6900 XT
Mac
  1. MacBook Pro
  2. Mac Pro
Classic Mac
  1. Performa
Mobile Phone
  1. iOS
12.4 i've seen introduced some freezing/bugs on more than just AMD hardware but even apple silicon. The cases with apple silicon seem to be caused by applications that don't have vsync enabled. the desktop itself though i have no idea. 12.4 in general though seems less stable though
 
Joined
May 29, 2012
Messages
800
Motherboard
Gigabyte Z390 Gaming X
CPU
i9-9900K
Graphics
6900XT
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  1. iMac
Classic Mac
  1. LC
  2. Power Mac
  3. PowerBook
Mobile Phone
  1. iOS
Has anyone updated to 12.4 with AMD RX6800 and i7-8600K experience freeze issue after couple minutes of system startup? I reverted back to 12.3.1 and it's all good now.

No problems on mine. I have the RX6900 XTXH, spoofed to RX6900. I've booted into MacOS and Windows back and forth and have left the rig running for hours and through multiple sleep/wake cycles.
 
Joined
Oct 28, 2017
Messages
59
Motherboard
Gigabyte x299x Designare 10G
CPU
i9 10940x
Graphics
Radeon VII
Mac
  1. iMac
  2. MacBook Pro
  3. Mac mini
Mobile Phone
  1. iOS
Has anyone updated to 12.4 with AMD RX6800 and i7-8600K experience freeze issue after couple minutes of system startup? I reverted back to 12.3.1 and it's all good now.

No problems here either. I had 12.3 (no aceleration issue on Radeon VII), so sluggish after be able to boot with zirkaiva SSDT for the RX6950, updated to the last version and since sunday no issues with multiple sleep/wake cycles as well.
 
Joined
Jun 13, 2018
Messages
734
Motherboard
Prime X299-A II
CPU
i9 9980XE
Graphics
RX 6800 XT
Mac
  1. iMac
  2. MacBook Pro
Classic Mac
  1. iMac
  2. Power Mac
Mobile Phone
  1. Android
  2. iOS
Hello guys, just found this thread. I'm considering swapping 6800 XT for 6950 XT to get better gaming experience with Windows side still maintaining macOS compatibility. Probably no RDNA 3 future cards support for macOS, don't you think? Is it reasonable to think of spoofing 6900 XT on a 6950 XT as it seems you accomplished this already?
 
Joined
Jul 20, 2014
Messages
935
Motherboard
AsRock X299 Creator-1.50
CPU
i9-10900X
Graphics
RX 6800 XT
Mac
  1. MacBook Pro
Mobile Phone
  1. iOS
Probably no RDNA 3 future cards support for macOS, don't you think?
May be with the Mac Pro 2019 in 2023/24. if not, it will be a shame from apple to their MacPro 2019 Clients. but I won't be surprised:crazy:
 
Joined
Oct 28, 2017
Messages
59
Motherboard
Gigabyte x299x Designare 10G
CPU
i9 10940x
Graphics
Radeon VII
Mac
  1. iMac
  2. MacBook Pro
  3. Mac mini
Mobile Phone
  1. iOS
Hello guys, just found this thread. I'm considering swapping 6800 XT for 6950 XT to get better gaming experience with Windows side still maintaining macOS compatibility. Probably no RDNA 3 future cards support for macOS, don't you think? Is it reasonable to think of spoofing 6900 XT on a 6950 XT as it seems you accomplished this already?
I don't know what your you would use it for but keep in mind that Redshift 3D is not working for me neither is World Creator, as it detects my GPU as AMD Radeon HD GFX10 Family Unknown Prototype and 128MB only. Blender works fine though, but I guess Apple will support this GPU I am not so sure about RDNA3.
 
Joined
Oct 10, 2015
Messages
1,056
Motherboard
Z370 AORUS Gaming 3
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i5-9600K
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RX 580
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  1. MacBook
  2. MacBook Pro
Mobile Phone
  1. iOS
Hello guys, just found this thread. I'm considering swapping 6800 XT for 6950 XT to get better gaming experience with Windows side still maintaining macOS compatibility. Probably no RDNA 3 future cards support for macOS, don't you think? Is it reasonable to think of spoofing 6900 XT on a 6950 XT as it seems you accomplished this already?
The performance gains are really little for gaming. I don’t recommend swapping as 6950 XT may consume much time but with little benefits.
 
Joined
Nov 12, 2012
Messages
19
Motherboard
Asus X299 Sage 10G
CPU
i9-10980
Graphics
RX 6900 XT
I don't know what your you would use it for but keep in mind that Redshift 3D is not working for me neither is World Creator, as it detects my GPU as AMD Radeon HD GFX10 Family Unknown Prototype and 128MB only.
Do you have the same result when you add additional device properties?
Code:
<dict>
    <key>DeviceProperties</key>
    <dict>
        <key>Add</key>
        <dict>
            <key>PciRoot(0x1)/Pci(0x3,0x1)/Pci(0x0,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)</key>
            <dict>
                <key>@0,name</key>
                <string>ATY,Carswell</string>
                <key>@1,name</key>
                <string>ATY,Carswell</string>
                <key>@2,name</key>
                <string>ATY,Carswell</string>
                <key>@3,name</key>
                <string>ATY,Carswell</string>
                <key>ATY,EFIVersion</key>
                <data>AQABJw==</data>
                <key>device_type</key>
                <string>ATY,CarswellParent</string>
                <key>model</key>
                <string>AMD Radeon PRO W6900X</string>
                <key>name</key>
                <data>CgDKAAAA</data>
            </dict>
        </dict>
    </dict>
</dict>

I guess in this sample the device-id spoof (BF730000) is missing. And the path need an adjustment.
 
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