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Radeon 7950 in MacOS 10.14.1  

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_matthew
(@_matthew)
New Member
Joined: 3 years ago
 

I'm running a MacBook Pro Retina Mid 2015 15" with a Sonnet eGFX Breakaway Box and an old Sapphire 7950 while I wait for a good price on an rx 580.
Before running purge wrangler the GPU showed up under System Report but just as 'Display' and 'External GPU' with a device ID of '0x679a' with no other info about it.
Now after disconnecting the GPU, running Purge Wrangler, rebooting, and connecting the GPU again it doesn't show anywhere with just the breakaway box showing under thunderbolt in System Report.
Has anyone else successfully got a 7950 (r9 280) running on 10.14?

MacBook Pro (Retina, 15-inch, Mid 2015), MacOS 10.14, Sonnet eGFX Breakaway Box


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_matthew
(@_matthew)
New Member
Joined: 3 years ago
 

I've done some more digging in System Report and discovered that the GPU shows under PCI Devices as a Radeon HD 7xxx but it says no driver installed....

MacBook Pro (Retina, 15-inch, Mid 2015), MacOS 10.14, Sonnet eGFX Breakaway Box


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mac_editor
(@mac_editor)
Famed Member Moderator
Joined: 4 years ago
 

@_matthew That specific GPU might need it's device ID in the specific kext of the same architecture. There are many such exceptions with AMD cards on macOS so hard to maintain.

Author: kryptonitepurge-wranglertbt-flashpurge-nvdaset-eGPU
Insights Into macOS Video Editing Performance

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2019 13" MacBook Pro [8th,4C,U] + RX Vega 64 @ 32Gbps-TB3 (Mantiz Venus) + macOS 10.14.6 & Win10 [build link]  


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_matthew
(@_matthew)
New Member
Joined: 3 years ago
 

I'm not 100% sure if I'm looking at the right place but I had a look in the "AMDLegacySupport.kext" that's installed by purge wrangler and the device ID for the 7950 (0x679a) appears in there three times

MacBook Pro (Retina, 15-inch, Mid 2015), MacOS 10.14, Sonnet eGFX Breakaway Box


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Beatnik419
(@beatnik419)
New Member
Joined: 2 months ago
 

Did you solve your problem later? Mine is the public version of amd radeon hd7950 3gb, mbp2012mid, and the connected egpu cannot be displayed correctly in the system. There is no difference between connected and unconnected. Under "About Mac" Hardware-Thunderbolt-
Supplier Name: Apple Inc.
Device name: MacBook Pro
UID: 0x0001000A125C3780
Route string: 0
Firmware version: 25.1
Domain UUID: EC1D128B-E935-9557-AA3D-3942FCB4114C
port:
Status: No device connected
Link status: 0x7
Speed: up to 10 Gb/s x2
Jack: 1
Port Micro firmware version: 2.1.3

Have you solved it now? Please help me if you solve it. thank you very much

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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Piipperi800
(@piipperi800)
Eminent Member
Joined: 10 months ago
 

@_matthew, I was told that Purge-Wrangler won't work with these "legacy" AMD cards that well. So if you're using that, uninstall it and use automate-eGPU EFI instead.

 

MacBook Pro 15" Late 2013, Sonnet Breakaway Box 550, AMD RX 5700 XT


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