Since some years, the LatinModern 8-bit fonts work well with Greek,
using the high quality CB-Fonts as substitution (just as ComputerModern).
-#LyX 2.3 created this file. For more info see http://www.lyx.org/
-\lyxformat 544
+#LyX 2.4 created this file. For more info see https://www.lyx.org/
+\lyxformat 550
\begin_document
\begin_header
\save_transient_properties true
\language_package default
\inputencoding auto
\fontencoding OT1
-\font_roman "default" "DejaVu Serif"
+\font_roman "lmodern" "DejaVu Serif"
\font_sans "default" "DejaVu Sans"
\font_typewriter "default" "DejaVu Sans Mono"
\font_math "auto" "auto"