I have had the same problem.  Unlike Mark IV Context, LMTX does not seem to
recognize fonts outside its tree.  Maybe there's some option to tweak with.

The workaround I found was to copy the TTF files under
"{context-lmtx-root}/tex/texmf/fonts/truetype/public/" and run "context
--generate".

If you like to have mtxrun font commands to work properly, you need to
invoke "mtxrun --script font --reload" after that.

Hope this helps.

On Mon, Aug 26, 2019 at 11:09 AM Floris van Manen <vm@klankschap.nl> wrote:

> using the latest context version luametatex on ubuntu 19.4
>
> system          > ConTeXt  ver: 2019.08.24 22:50 MKIV beta  fmt:
> 2019.8.25  int: english/english
> system          > 'cont-new.mkiv' loaded
>
>
> with the dijkstra.ttf font apparently seen:
>
> $ mtxrun --script fonts --list --all --name dijkstra
> identifier        familyname   fontname   filename
>                                                   subfont   instances
>
> dijkstra          dijkstra     dijkstra   ~/.local/share/fonts/Unknown
> Vendor/TrueType/Dijkstra/Dijkstra_Thin.ttf
> dijkstranormal    dijkstra     dijkstra   ~/.local/share/fonts/Unknown
> Vendor/TrueType/Dijkstra/Dijkstra_Thin.ttf
> dijkstraregular   dijkstra     dijkstra   ~/.local/share/fonts/Unknown
> Vendor/TrueType/Dijkstra/Dijkstra_Thin.ttf
>
>
>
> context will complain that the font is unknown:
>
> selectfont      > The requested font 'dijkstra' has no files for the
> 'tf' alternative, Latin Modern is used instead.
>
>
> I assume i missed a critical step somewhere down the road.
> any hints?
>
> thanks
> Floris
>
>
>
>
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