Re: Different rendering in latex doc between Windows, macOS and GNU/Linux

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sat, 26 Nov 2022 20:03:59 +0100 (CET)
> From: Angelo Graziosi <angelo.g0@libero.it>
> Cc: emacs-devel@gnu.org
> 
> > > The result of the above command is the same, both on Windows and GNU/Linux but on GNU/Linux 'foo' is rendered in underline bold while on Windows it is in italic. I create a foo.tex file with '\emph{foo}' on the first line and with the cursor on 'f' of 'foo'. See the attachments..
> > 
> > The images show that the font you use on GNU/Linux doesn't have the italics
> > variant, so Emacs uses underline instead, per the defface:
> > 
> >   (defface italic
> >     '((((supports :slant italic))
> >        :slant italic)
> >       (((supports :underline t))
> >        :underline t)
> 
> Hmm.. this is strange. "emacs -q/Q" uses Monospace and in Emacs, 'Menu-Set Default Font...' seems to show that Monospace has italic (see the attachment taken with 'emacs -Q')! But really I tried with many fonts (Andale Mono, Bitstream Vera Sans Mono, Courier, DejaVu sans Mono book, FreeMono, Noto...) all listed with the the regular, italic, bold.. versions and with the same negative results.
> 
> This does not occur on Windows or macOS.

Maybe it' isn't the font, but something else, I don't know.  The fact is
that Emacs says the face is 'italic', but displays it as underline.  And the
above says this happens when italics cannot be produced for some reason.

> Anyway, may you suggest a font to be used with Emacs in GNU/Linux to test this?

Sorry, no.  I don't know what to suggest.  Maybe someone else does.