this is my first question here. (Though I'm no stranger to Linux/Ubuntu)
I just set up a second display with my desktop running Ubuntu 18.04 with the most recent stable drivers. The display is not being detected through the settings panel, but it is showing up when I run
xrandr --query as "not disconnected but has no modes"
(I'll append the full output below)
I am using a DisplayPort to HDMI dongle to connect the monitor in question to my Graphics Card (MSi AMD Radeon RX560). Could that be the issue? Also the second display is technically a TV if that matters.
DisplayPort-0 is not disconnected but has no modes Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384 DisplayPort-0 connected (normal left inverted right x axis y axis) HDMI-A-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 476mm x 268mm 1920x1080 60.00*+ 50.00 59.94 1680x1050 59.88 1280x1024 75.02 60.02 1440x900 59.90 1280x960 60.00 1280x800 60.00 1152x864 75.00 1280x720 60.00 50.00 59.94 1024x768 75.03 70.07 60.00 832x624 74.55 800x600 72.19 75.00 60.32 56.25 720x576 50.00 720x480 60.00 59.94 640x480 75.00 72.81 60.00 59.94 720x400 70.08 DVI-D-0 disconnected (normal left inverted right x axis y axis)