dvi export

[Wolfgang Engelmann]

I have this content in a LyX file:

This is Text for testing dvi Export

I exported it successfully from LyX as dvi(Luatex). However, trying to 
view the dvi file with Okular gives:

Okular kann nicht alle Schriftdateien finden, die zur Anzeige der 
DVI-Datei nötig sind. Ihr Dokument ist möglicherweise nicht lesbar.

I therefore installed xdvi and ran it:
xdvi DVI-Test-x.dvi
xdvi: Error: Can't find font 
[/usr/local/texlive/2022/texmf-dist/fonts/opentype/public/libertinus-fonts/LibertinusSerif-Regular.otf]; 
using cmr10 instead. Expect ugly output.
xdvi-xaw: Warning: Could not find graphics file "DVI-Test-x.out.ps"

It thus does not depend on the dvi viewer.

The pdf output is alright.

I use
Version 2.4.0dev (not released yet)
Built from git commit hash 53ed3dc0
Qt Version (run-time): 5.15.2 on platform xcb
Qt Version (compile-time): 5.15.2
Python detected: python3 -tt

What is going wrong?

Wolfgang