Jump to content

Dual GPU (2x AMD RX460) black screen issue


1 post in this topic

Recommended Posts

I recently got a second RX460 for cheap. Now I want to use it with my existing RX460 (the cards are identical) on 10.12.4 in a dual GPU setup. The single RX460 (Lilu, WhateverGreen) runs just fine, but as soon as plug in the second one in the x8 lane slot the system boots to a black screen. I can ssh into that machine, so it's running except the black screen. I also own a 750 GTX (Webdrivers, Lilu, Nvidiagraphicsfixup) which runs very well on the x8 slot, so it must be related to the second RX460. I even flashed the second RX460 to a RX560 and after that the black screen was gone but the card wasn't properly recognized https://showbox.bio/ https://tutuapp.uno/.

Motherboard: Gigabyte Z170MX Gaming 5
CPU: Pentium G4560
GPU: 2x Gigabyte AMD RX460

$ system_profiler | grep -A35 Graphics/Displays

Graphics/Displays:

Radeon Pro 460:

  Chipset Model: Radeon Pro 460
  Type: GPU
  Bus: PCIe
  PCIe Lane Width: x8
  VRAM (Total): 4096 MB
  Vendor: ATI (0x1002)
  Device ID: 0x67ef
  Revision ID: 0x00cf
  EFI Driver Version: WEAR-104-2017-08-27
  Metal: Supported
  Displays:

Hardware:

Hardware Overview:

  Model Name: iMac
  Model Identifier: iMac17,1
  Processor Name: Intel Core i5
  Processor Speed: 3,50 GHz
  Number of Processors: 1
  Total Number of Cores: 2

What could be the reason? How do I get the two cards to work? 

Edited by Naruto01

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...