RX 5700 XT eGPU issues on 2013 15-in MacBook Pro
@itsage, I hope you can help me out.
MBP late 2013 retina, 2,3 QC i7, 16GB, NVIDIA GeForce GT 750M 2 GB, Intel Iris Pro 1536 MB, MacOS Catalina 10.5.5
external BenQ SW320 via mini displayport to displayport on the eGPU.
Installed purge wrangler (with AMD selected and t182 yes) and after reboot connected the eGPU. Mac menu bar says eGPU connected. external monitor looks pale.
THEN, SYSTEM SLOWS DOWN almost to a complete halt. Mouse is working fine but apps only respond after several seconds and system keeps going slower. After disconnecting eGPU via the menu system is getting faster back to normal after some time.
Any ideas how to fix this issue?
If all works I would like to post my build with the solutions.
@itsage, Thanks for your swift reply!
It's the PowerColor AMD Radeon RX 5700 XT Red Devil 8GB GDDR6
Unfortunately, I have no other way to test this card.
Decided to run https://github.com/mayankk2308/purge-nvda and the slowing has gone away!
Ran Unigine Vally and the benchmark went from a miserable FPS: 4.8 and Score 199 without eGPU to FPS 70.3 and Score 2942 with eGPu 😉
The only thing was that the SW320 monitor is displaying quite pale. After changing the systems settings for the SW320 - HDR was checked for some unknown reason!- the display is now rendering correct!
I apologise not being able to find this thread myself and thus having to bother you. I will post my build and workaround a.s.a.p!
Should you have any further insights, please let me know!
@ajay, That's good to hear. HDR settings are ON by default in most recent macOS versions when it detects a compatible HDR monitors. The majority of monitors render HDR terribly in macOS so turning it off is best.