Trisquel Mini monitor not recognised

Maybe this doesn't address your problem exactly but I hope this helps. Commands are single quoted. I found these steps researching my problem on the internet but do not remember where exactly.

I have trisquel mini on a thinkpad. I just this week hooked up a weird monitor (Something like a Dynex LCD-DX22-09) via hdmi. Simple xrandr command reveals what monitors the OS perceives.

'xrandr'

listed the laptop screen as eDP-1 and the Dynex as HDMI-1. The resolutions given for the dynex were inappropriate. Internet search informed me 1680 X 1050 was wanted. Looks like your Asus va240 might be 1920 X1080.

I found I lacked the cvt utility and eventually found out the current version is xcvt so:

'sudo apt install xcvt '

'cvt 1680 1050'

That command gave me the following information

1680x1050 59.95 Hz (CVT 1.76MA) hsync: 65.29 kHz; pclk: 146.25 MHz
Modeline "1680x1050_60.00" 146.25 1680 1784 1960 2240 1050 1053 1059 1089 -hsync +vsync

Then I performed these steps

'xrandr --newmode $(cvt 1680 1050 | grep -Pio 'modeline\K.*' | xargs)'

'xrandr --addmode HDMI-1 "1680x1050_60.00"'

'xrandr --output HDMI-1 --mode 1680x1050'

Of course you would be doing these steps looking at 1920 X 1080.

That worked. It took a while to get it out of mirror mode. My trash Icon just barely shows on the edge of the screen and the only reliable place for the panel is on the laptop screen at the top. But I'm happy enough to be moving on to other problems.

plus an nvidia gt1030 video card

Using the integrated Intel HD graphics should solve the problem.

> Also tried running it without the video card installed no change.

Do you mean, you have physically removed the video card?