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Odd issue with RX 580. Only get video after sleep/wake

Joined
Apr 12, 2012
Messages
53
Motherboard
MSI Z97 Gaming 5
CPU
Intel Core i7 4770 3.4 GHz
Graphics
MSI NVIDIA GEFORCE GTX 1060 3GB
Mac
  1. iMac
  2. MacBook Air
  3. MacBook Pro
  4. Mac Pro
Classic Mac
  1. Power Mac
Mobile Phone
  1. iOS
Hey everyone. Just completed my Catalina mackintosh build. Everything works great apart from one small issue. When booting the system, it starts to a black screen when using the separate GPU. In order to get a video signal I have to first allow the system to sleep. Once it wakes up everything functions normally and I get full Metal support. I'm not sure why this happens as the sleep and wake function works perfectly fine after that, as does everything else including iMessage, FaceTime etc. I've tried changing the recommended settings around in the BIOS as well the config.plist but have had no luck getting this resolved. Any help on this would be appreciated!

Core i7 2600k
Asus P8H67-M Pro/CSM
24GB DDR3
MSI RX 580 8GB
 
Joined
Aug 2, 2013
Messages
849
Motherboard
Gigabyte Z97X-UD5H
CPU
i7-4790K
Graphics
HD 4600 / RX 580
Mac
  1. iMac
  2. MacBook Air
  3. MacBook Pro
Mobile Phone
  1. iOS
Are you using either of the following:

The RadeonDeInit=true option in your /CLOVER/config.plist - Graphics section in the config.plist.

or

The SSDT-RadeonDeInit.aml in your /OC/ACPI folder and config.plist

You need to using one or the other with an RX580 dGPU.
 
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