Edited by thenewjavaman at 2017-10-10 04:47

I recently installed Deepin and absolutely love it so far. My only issue is pretty big, though. One of my two monitors doesn't have any input, not even black. My BIOS's default graphics device is my graphics card, with my APU force enabled. The monitor that doesn't work is on the APU. When I force my APU to be the default device, my GPU's monitor is disabled. Both work in Windows. Here's some feedback from commands that I've run.

lspci | grep VGA
  00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Kaveri [Radeon R7 Graphics]
  01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Baffin [Radeon RX 460] (rev cf)

xrandr --listproviders
  Providers: number : 2
  Provider 0: id: 0x9c cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 5 outputs: 3 associated providers: 0 name:AMD Radeon RX 460 Graphics @
  pci:0000:01:00.0
  Provider 1: id: 0x46 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 4 outputs: 3 associated providers: 0 name:KAVERI @ pci:0000:00:01.0

xrander
  Screen 0: minimum 320 x 200, current 2560 x 1080, maximum 16384 x 16384
  DisplayPort-0 disconnected (normal left inverted right x axis y axis)
  HDMI-A-0 connected primary 2560x1080+0+0 (normal left inverted right x axis y axis) 798mm x 334mm
     2560x1080     59.98*+  74.99  
     1920x1080     74.99    60.00    60.00    50.00    59.94  
     1680x1050     59.88  
     1600x900      60.00  
     1280x1024     75.02    60.02  
     1280x800      59.91  
     1152x864      75.00    59.97  
     1280x720      60.00    50.00    59.94  
     1024x768      75.03    60.00  
     832x624       74.55  
     800x600       75.00    60.32  
     720x576       50.00  
     720x480       60.00    59.94  
     640x480       75.00    60.00    59.94  
  DVI-D-0 disconnected (normal left inverted right x axis y axis)

Any help would be GREATLY appreciated, thank you!

CPU: AMD A10-7850K with R7 APU (Kaveri)
GPU: AMD RX460 (Polaris 11)