On Thu, 27 Feb 2020 at 13:52, Dave Close <d...@compata.com> wrote:
> Andras Simon wrote:
>
> >Maybe this could help you locate the right font:
> >
> >xfontsel - point and click selection of X11 font names
> >
> >xfontsel is in the xorg-x11-apps package (at least on Fedora 30).
>
> I have the program. But I've already discovered the font which XTerm
> claims to be using. Using appres I can see that it claims to be using
> "-misc-fixed-medium-r-normal--14-130-75-75-c-70-iso10646-1" and xfontsel
> does show that font exists. But if I specify that font using the Xterm
> "-fa" option, it doesn't render the same as selecting the "Small" font
> using CTRL-rightmouse.
>
> I can make rendering appear *almost* the same by adding the "-fs 9.0"
> option to the command line. At first glance that seems identical but
> examing with xmag shows a difference. Selecting "Small" gets a crisp
> font but using "-fa" and "-fs" gets one with lots of half-tones.
>
> It appears that XTerm must be getting its font in some non-standard way.
> Any XTerm experts here?
>
No experts here. I abandonded xterm for whatever my current distro calls
"terminal", in part due to the sort of font issues you encountered. I mostly
do my work in emacs shell buffers.
My guess is that the rendering differences you observe are the difference
between fontconfig and legacy X11 font support. Fedora 31 xterm links
to fontconfig.
xterm -report-fonts lists both "XftFonts" wirh fontconfig style names and
"VTFonts" with legacy X11 style names. If you look at e.g.,
/etc/fonts/conf.d/57-dejavu-sans-mono.conf you will see a comment:
<!-- /etc/fonts/conf.d/57-dejavu-sans-mono.conf
Define aliasing and other fontconfig settings for
DejaVu Sans Mono.
© 2006-2008 Nicolas Mailhot <nicolas.mailhot at laposte.net>
-->
In the past, these files often needed tweaks to get things to look right
for a
a particular resolution, but these days I find the defaults are generally
good
enough.
--
George N. White III
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