eGPU Symbol (No GPU Connected) shows briefly. System Report shows hardware is present.  

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agentcooper
(@agentcooper)
New Member
Joined: 1 month  ago
Posts: 4
October 14, 2018 12:16 am  
I've been searching for a few days across here and Reddit and even MacRumours and can't seem to nail down a resolution.

Razer Core V2
Strix AMD Vega 56 OC
MBP 15" 2017, Mojave 10.14

I've connected right side, left side, with other power to MBP, without. Using the TB3 cable that came with the Razer.

Plugged in prior to boot. Fans will spin up on GPU then stop. Takes a long time to get to desktop after log in. Sits there with white status bar. doesn't result in an eGPU symbol.

Unplugging then says "Did not disconnect properly" and then replugging results in the brief eGPU Symbol (No GPU Connected) and then goes away. However, if you go to system info, then go to Thunderbolt, the eGPU info is right there.

The Razer will turn on and off in conjunction with the state of the MBP.

 
The Device ID is correct for the type of GPU and the Razer shows as present. 

Any suggestions would be very much appreciated please. Any of the similar builds I've looked say "It's plug and play", "it just works". I feel like I'm missing something very basic.


System Report shows:

Display:

  Type:External GPU

  Bus:PCIe

  PCIe Lane Width:x16

  VRAM (Dynamic, Max):

  Vendor:AMD (0x1002)

  Device ID:0x687f

  Revision ID:0x00c3

  Automatic Graphics Switching:Supported

  gMux Version:4.0.29 [3.2.8]

 

Thunderbolt Bus 0:

  Vendor Name: Apple Inc.

  Device Name: MacBook Pro

  UID: 0x000138CB98E20B00

  Route String: 0

  Firmware Version: 37.1

  Domain UUID: 2DF1A407-E128-9D57-B772-1392B4A8D70F

  Port:

  Status: No device connected

  Link Status: 0x7

  Speed: Up to 40 Gb/s x1

  Current Link Width: 0x1

  Receptacle: 2

  Link Controller Firmware Version: 0.37.0

  Port:

  Status: Device connected

  Link Status: 0x2

  Speed: Up to 40 Gb/s x1

  Current Link Width: 0x2

  Receptacle: 1

  Link Controller Firmware Version: 0.37.0

 

Core:

  Vendor Name: Razer

  Device Name: Core

  Vendor ID: 0x127

  Device ID: 0x218

  Device Revision: 0x1

  UID: 0x0127537E2470F000

  Route String: 3

  Firmware Version: 26.1

  Port (Upstream):

  Status: Device connected

  Link Status: 0x2

  Speed: Up to 40 Gb/s x1

  Current Link Width: 0x2

  Link Controller Firmware Version: 0.36.0

  Port:

  Status: Device connected

  Link Status: 0x2

  Speed: Up to 40 Gb/s x1

  Current Link Width: 0x2

  Link Controller Firmware Version: 0.36.0

Razer Core V2, STRIX Radeon Vega 56 OC, MacBook Pro 15" 2017, Mojave 10.14


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Jax
 Jax
(@jax)
New Member
Joined: 2 years  ago
Posts: 2
October 14, 2018 2:42 pm  

I have a similar problem. Sonnet's eGFX Breakaway Box 550, Vega 56, MBP 15 2016, MacOS 10.14.1. No idea how to fix it.
I made a new partition and installed High Sierra - eGPU
works fine.


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agentcooper
(@agentcooper)
New Member
Joined: 1 month  ago
Posts: 4
October 14, 2018 9:22 pm  

I’ll give that a go thank you!

Razer Core V2, STRIX Radeon Vega 56 OC, MacBook Pro 15" 2017, Mojave 10.14


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mac_editor
(@mac_editor)
Noble Member Moderator
Joined: 2 years  ago
Posts: 1485
October 14, 2018 10:00 pm  

@agentcooper Did you by chance migrate from an older Mac (TB1,2) with a script/patch installed? If so, that would explain the symptom. This is exactly what happens when an unpatched TB2 Mac attempts to connect to eGPU. Can be resolved by uninstalling said patch/script (basically, macOS was patched for TB1/2, then on TB3 machine this patch was migrated, essentially blocking TB3).

Can't think of another case as to why this may occur.

Another way to resolve this is to install macOS again onto your existing install.

purge-wrangler.shpurge-nvda.shset-eGPU.sh
----
Troubleshooting eGPUs on macOS
Command Line Swiss Knife
----
Multiple Build Guides


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agentcooper
(@agentcooper)
New Member
Joined: 1 month  ago
Posts: 4
October 15, 2018 6:57 am  

Maybe?

I bought this MBP second hand last year from a doctor so it's possible they did. Thank you I'll give it a go!

Razer Core V2, STRIX Radeon Vega 56 OC, MacBook Pro 15" 2017, Mojave 10.14


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agentcooper
(@agentcooper)
New Member
Joined: 1 month  ago
Posts: 4
November 10, 2018 8:22 am  

Finally got around to this.

Downloaded Mojave install, created a new volume, installed and now have dual boot Mojave. Issue persisted unfortunately.

I reckon I'll back up, wipe everything, start from scratch and give it one more go 🙂

Razer Core V2, STRIX Radeon Vega 56 OC, MacBook Pro 15" 2017, Mojave 10.14


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