Somehow detects monitor instead of nxoutput0

[berkleycolo]

When I’m installing NoMachine on a Debian server where no physical monitor is available since the first boot, it shows “nxoutput0” in the display settings, and everything is okay. However, after a reboot, it shows “Monitor” in the display settings. There is no physical monitor connected! I also installed the “xrdp” service, and it shows “rdp0” as it should, but NoMachine somehow shows “Monitor” in the display settings.

I tried it on another server from a different hosting provider, and the situation is the same. I have a “Monitor” in the display settings from NoMachine and “rdp0” from xrdp. How can I fix this situation?

Under the “Monitor” in display settings, I cannot manually change the resolution. I have only a few available resolutions like 1024×768 and others similar to this. I use xrandr for it, but after a reboot, I lose the resolution and have to set it again. It’s really strange to have a “Monitor” in display settings when I have no monitor connected.

Please advise on what to do.

[Britgirl]

NoMachine should detect when the X server is not running and run its own virtual display, which is an embedded X server. Please take a look at the article about headless Linux in the knowledge base, paying particular attention to point 1) about stopping the x server manually and restarting the nxserver to allow NoMachine to create its own virtual display.

Connecting to Linux headless machines with NoMachine
https://kb.nomachine.com/AR03P00973

You can also disable the GUI permanently, so that it won’t automatically start again after reboot, e.g.:

sudo systemctl disable gdm3

[Author]

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