[HELP] eGPU crashing while using Oculus Link
 
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[HELP] eGPU crashing while using Oculus Link  

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tilleyc
(@tilleyc)
New Member
Joined: 8 months ago
 

So I recently purchased a Razer Core Chroma and a Radeon 6800 for my iMac, to use in Bootcamp.  The eGPU is set up to display to an external monitor, however the iMac's internal Retina display is the primary display, so all of my programs default to running on it even when they're set to run off the eGPU.

Getting the Oculus Link was a little tricky, at first I thought it was a driver issue so I installed the latest version of the Radeon Pro drivers and that seemed to work for a little bit.   However, I was still getting intermittent disconnections, and wound up tracing the problem back to the program 'Razer Cortex' one of those "ULTA GAMING BOOSER" programs, and uninstalled it.  Turns out that program is notorious for screwing up VR.  For the most part, Oculus Link works fine as I don't have any issues getting the link between my Quest 2 and the iMac to connect.   

I have been running into, what is hopefully the last, issue with running the Oculus Link.   Every now and then the eGPU will crash and lock up both the Quest 2 and the iMac, forcing me to reboot the computer.   After a reboot, I'm able to get everything to connect back to each other without any issue.   At the moment, I've got both the eGPU and the Oculus Link cable plugged into the iMac with the eGPU plugged into the right port and the Link on the left.   It happens the most when I run Half Life Alyx, which is a pretty resource intensive game.   

I'm not sure what might be causing the issue, but I'm open to any ideas or suggestions.

Thank you for your help!

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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itsage
(@itsage)
Founder Admin
Joined: 5 years ago
 

@tilleyc, Have you been able to connect the Oculus Link directly to the RX 6800 through USB-C? From what you described, the headset is using loopback eGPU mode.

 

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tilleyc
(@tilleyc)
New Member
Joined: 8 months ago
 

@itsage

 

Well, my card doesn't have a dedicated USB-C port on it.   However, I have a pair of USB-C adapters to use for the four USB ports on the eGPU.  When I was playing last night, I had the Link hooked up into the eGPU and didn't run into any issues for the hour or so I was playing.  

The headset using the eGPU's loopback could very well be what was causing the issue.

Thanks for the help!

 

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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itsage
(@itsage)
Founder Admin
Joined: 5 years ago
 

@tilleyc, That clears things up. It's best to have the headset powered directly by the eGPU.

 

LinkedIn | Twitter | Facebook | Youtube | Instagram
 
external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2021 13" ASUS ROG Flow X13 (RTX3050Ti) [R5K,8C,H] + RTX 3080 @ 64Gbps-XG (XG Mobile) + Win10 20H2 [build link]  


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