On Sat, 31 Jan 2026 13:03:19 -0500, Haines wrote in message
<aX5D59tzuzas6Whj@???>:

> I built a machine in Oct 2024 that uses a Gigabyte Z590 AORUS
> Elite AX MB. Because my monitor is high resolution, I had to lower
> resolution to the point it became useful. In January the
> motherboard video chip died and I was forced to resort to use of a
> video card, a Gigabyte GV-N1030D4-2GL GeForce GT 1030 Low Profile D4
> 2G.
>
> When I booted, I got video, but too low in resolution to be of use.
> I suspected I needed a driver to get access to a range of
> resolutions. Is nvidia driver installed in Devuan by default. Or must
> I install firmware-nvideo-graphics?
>
> # lsmod
> ...
> video 81920 1 nouveau
>
> I cannot run xerandr or xeyes:
>
> # xeyes
> Error: Can't open display: 0,0
>
>
> # Export DISPLAY: 0.0
>
> # echo $DISPLAY
> 0.0
>
> # eyes
> Error: Can't open display 0.0

..chk output of env |grep DISPLAY=
If that fails, chk the full output of env.

..ssh'ed in to localhost, you should see e.g.:
axy@dvn:~$ env |grep DISPLAY=
DISPLAY=localhost:10.0
axy@dvn:~$
logout
Connection to 127.0.0.1 closed.
arnt@dvn:~$ env |grep DISPLAY=
DISPLAY=:0

..ssh in and append e.g. --display=127.0.0.1:10.0 to these
commands, if those fails, env output should point you the
right way.

--
..med vennlig hilsen = with Kind Regards from Arnt Karlsen
...with a number of polar bear hunters in his ancestry...
Scenarios always come in sets of three:
best case, worst case, and just in case.