Gentlemen, I am usinf a Shuttle DH170. I have connected a monitor by HDMI and another via the vga cable. When I boot up both monitors display identicaly. However part way through the vga disappears and never returns. Once booted Settings -> Display will only show the HDMI monitor.
I have been playing with this for the whole day and tried many different distros and only one works correctly and that is Fedora 31 with Gnome 3. Except as soon as I update the system the VGA terminal also dissappears., However I discovered that in my .config directory there are two files called monitors.xml and monitors.xml~ .These contain the information about the the two terminals HDM1 and DP1.
I looked in my Siduction system but no such file exists.
The hardware obviously works but something switches the VGA off part way through Booting. Anyone have some guidlines on this.
regards