I have recently had dual monitors working on Ubuntu 16.04 but after an upgrade I was unable to get my dual monitor setup to work. I have tried to install the amdgpu-pro install of the 18.10 version from the AMD website, and I still can't get the 2nd monitor to work.
xrandr outputs:
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
DisplayPort-2 disconnected (normal left inverted right x axis y axis)
HDMI-A-0 disconnected (normal left inverted right x axis y axis)
DVI-D-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 477mm x 268mm
1920x1080 60.00*+
1600x1200 60.00
1680x1050 59.88
1280x1024 60.02
1440x900 59.90
1280x960 60.00
1280x800 60.00
1280x720 60.00
1024x768 60.00
800x600 60.32
640x480 59.94
720x400 70.08
The HDMI-A-0 connection is the one not working. I know the cable is good because I dual boot with this same system into Windows 10, and both monitors work.
What has gone wrong and what can I do to get my 2nd monitor connected?
