[oi-dev] Emacs has a bad font

Udo Grabowski (IMK) udo.grabowski at kit.edu
Tue Jun 18 10:51:05 UTC 2024


emacs -nw -q --batch --eval '(message system-configuration-options)' shows

CC=/usr/gcc/13/bin/gcc CXX=/usr/gcc/13/bin/g++ F77=/usr/gcc/13/bin/gfortran 
FC=/usr/gcc/13/bin/gfortran ’CFLAGS=-m64 -O3  -I/usr/include/libjpeg8-turbo 
-Wl,-L/usr/lib/libjpeg8-turbo/lib/amd64 -Wl,-R/usr/lib/libjpeg8-turbo/lib/amd64 
-I/usr/include/lcms2’ ’CXXFLAGS=-m64 -O3  -I/usr/include/libjpeg8-turbo 
-Wl,-L/usr/lib/libjpeg8-turbo/lib/amd64 -Wl,-R/usr/lib/libjpeg8-turbo/lib/amd64’ 
’FFLAGS= -m64 -O3 ’ ’FCFLAGS=-m64 -O3 ’ ’LDFLAGS=-m64 
-L/usr/lib/libjpeg8-turbo/lib/amd64 -R/usr/lib/libjpeg8-turbo/lib/amd64 
-L/usr/gnu/lib/amd64 -R/usr/gnu/lib/amd64’ 
PKG_CONFIG_PATH=/usr/openssl/3.1/lib/64/pkgconfig:/usr/mariadb/10.6/lib/amd64/pkgconfig:/usr/lib/amd64/pkgconfig:/usr/lib/pkgconfig 
--prefix=/usr --mandir=/usr/share/man --bindir=/usr/bin --libdir=/usr/lib/amd64 
--libexecdir=/usr/libexec --sbindir=/usr/sbin --infodir=/usr/share/info 
--datarootdir=/usr/share --libexecdir=/usr/lib --with-gif=yes --with-xaw3d=no 
--with-mailutils --with-modules --with-imagemagick --with-threads --with-png 
--with-rsvg --with-sqlite3 --with-tiff --with-toolkit-scroll-bars --with-webp 
--with-treesitter --with-sound=oss
ac_cv_sys_long_file_names=yes --with-x-toolkit=gtk3 --with-xwidgets
                                                      ^^^^^^^^^^^^^^
xwidgets usually means libwx*, which is build with gtk-2; but libwx is not shown
in the ldd output of emacs-gtk.

On 17/06/2024 23:18, Gordon Ross wrote:
> I opened a bug for this:
> https://www.illumos.org/issues/16613
> emacs-gtk vers 29.3 crashes on startup
>
> On Mon, Jun 17, 2024 at 4:32 PM Gordon Ross <gordon.w.ross at gmail.com> wrote:
>>
>> Before beginning an exploration of which versions expose the font
>> problem and which don't, I decided to start with updating the
>> installation.  Now emacs-gtk doesn't work at all.  Suggestions?
>> Output below:
>>
>> (emacs-gtk:1193): Gtk-ERROR **: 16:25:16.093: GTK+ 2.x symbols
>> detected. Using GTK+ 2.x and GTK+ 3 in the same process is not
>> supported
>> Fatal error 5: Trace/breakpoint trap
>> Backtrace:
>> /usr/bin/emacs-gtk'emacs_backtrace+0x46 [0x66cb46]
>> /usr/bin/emacs-gtk'terminate_due_to_signal+0x73 [0x63fb1c]
>> /usr/bin/emacs-gtk'deliver_fatal_signal.cold+0x0 [0x66e99c]
>> /lib/amd64/libc.so.1'__sighndlr+0x6 [0x7fffaf3f46d6]
>> /lib/amd64/libc.so.1'call_user_handler+0x1d1 [0x7fffaf3e7371]
>> /lib/amd64/libc.so.1'sigacthandler+0xee [0x7fffaf3e766e]
>> [0xffffffffffffffff]
>> /usr/lib/amd64/libglib-2.0.so.0.7600.4'g_log_structured_array+0x84
>> [0x7fffae926874]
>> /usr/lib/amd64/libglib-2.0.so.0.7600.4'g_log_structured_standard+0x1a6
>> [0x7fffae9275c6]
>> /usr/lib/amd64/libgtk-3.so.0.2409.32'pre_parse_hook+0x61 [0x7fffaac3ce01]
>> /usr/lib/amd64/libglib-2.0.so.0.7600.4'g_option_context_parse+0x87
>> [0x7fffae931c07]
>> /usr/lib/amd64/libgtk-3.so.0.2409.32'gtk_parse_args+0xbf [0x7fffaac3d6ff]
>> /usr/lib/amd64/libgtk-3.so.0.2409.32'gtk_init_check+0xe [0x7fffaac3d76e]
>> /usr/lib/amd64/libgtk-3.so.0.2409.32'gtk_init+0x9 [0x7fffaac3d7b9]
>> /usr/bin/emacs-gtk'x_term_init+0x1a3 [0x60f643]
>> /usr/bin/emacs-gtk'Fx_open_connection+0x50 [0x615a60]
>> /usr/bin/emacs-gtk'exec_byte_code+0x3e6 [0x756f36]
>> /usr/bin/emacs-gtk'Ffuncall+0xff [0x6f506f]
>> /usr/bin/emacs-gtk'Fapply+0x2b8 [0x6f5458]
>> /usr/bin/emacs-gtk'exec_byte_code+0x3e6 [0x756f36]
>> /usr/bin/emacs-gtk'apply_lambda+0xcc [0x6fb12c]
>> /usr/bin/emacs-gtk'eval_sub+0x404 [0x6f9314]
>> /usr/bin/emacs-gtk'Feval+0x47 [0x6fbdd7]
>> /usr/bin/emacs-gtk'internal_condition_case+0x66 [0x6f2be6]
>> /usr/bin/emacs-gtk'top_level_1+0x22 [0x6431c2]
>> /usr/bin/emacs-gtk'internal_catch+0x3b [0x6f2b4b]
>> /usr/bin/emacs-gtk'command_loop+0x7b [0x641e4b]
>> /usr/bin/emacs-gtk'recursive_edit_1+0x86 [0x649b76]
>> /usr/bin/emacs-gtk'Frecursive_edit+0xd6 [0x649ec6]
>> /usr/bin/emacs-gtk'main+0x1c49 [0x6417a9]
>> /usr/bin/emacs-gtk'_start_crt+0x87 [0x4dc307]
>> /usr/bin/emacs-gtk'_start+0x18 [0x4dc268]
>> Trace/Breakpoint Trap
>>
>> On Mon, Jun 10, 2024 at 9:09 PM Gordon Ross <gordon.w.ross at gmail.com> wrote:
>>>
>>> Looking into this again.  I definitely have this font selected:
>>>
>>> $ fc-match "Deja Vu Sans Mono"
>>> DejaVuSansMono.ttf: "DejaVu Sans Mono" "Book"
>>> $ fc-match "Deja Vu Sans Mono-12"
>>> DejaVuSansMono.ttf: "DejaVu Sans Mono" "Book"
>>>
>>> It exists, and is a TrueType font.
>>> If I use that font in a mate-terminal profile
>>> (un-check "use system font" and specify that)
>>> it renders with font smoothing as expected.
>>>
>>> Selecting that same font in emacs give the jagged edges.
>>> Any ideas what else could be disabling font smoothing?
>>>
>>> On Tue, Nov 21, 2023 at 7:58 PM Alan Coopersmith
>>> <alan.coopersmith at oracle.com> wrote:
>>>>
>>>> Yes, the "bad" one is not antialiased, possibly a bitmap font,
>>>> while the "good" one is definitely antialiased, possibly TrueType or OpenType.
>>>>
>>>>         -alan-
>>>>
>>>> On 11/21/23 07:25, Gordon Ross wrote:
>>>>> Thanks.  I've confirmed that emacs is using the system font in both builds.
>>>>> Here are two screen shots (bad, good) that one can zoom in.
>>>>> The bad one has visible stair step diagonals etc. so I guess
>>>>> the good one has "anti-aliasing" and the bad does not?
>>>>> Does that clue help in tracking this down?
>>>>>
>>>>> On Mon, Nov 20, 2023 at 2:20 PM Alan Coopersmith
>>>>> <alan.coopersmith at oracle.com> wrote:
>>>>>>
>>>>>> GTK & Pango use fonts from fontconfig, not from X11, so it's not expected
>>>>>> to match xfontsel (which uses X11 fonts).  Among other things, Pango 1.44
>>>>>> dropped support for Type 1 & bitmap fonts, which X11/xfontsel still support,
>>>>>> leaving TrueType & OpenType font support.  One easy to spot difference,
>>>>>> fontconfig uses more natural names, like "DejaVu Sans Mono", while X11 uses
>>>>>> the older naming format with the 14 dashes separating fields.  Visually,
>>>>>> if the font is anti-aliased or LCD optimized, it must be fontconfig, as
>>>>>> the X11 font system doesn't support either technology.
>>>>>>
>>>>>> https://www.x.org/releases/current/doc/xorg-docs/fonts/fonts.html
>>>>>> describes the difference (using "Xft" for the fontconfig system),
>>>>>> but it's about a decade behind the latest changes now.
>>>>>>
>>>>>>          -alan-
>>>>>>
>>>>>> On 11/20/23 11:10, Gordon Ross wrote:
>>>>>>> As far as I can tell, the "system" font for mate terminal and such is:
>>>>>>> "DejaVu Sans Mono", or
>>>>>>> -misc-dejavu sans mono-medium-o-normal--0-0-0-0-p-0-ascii-0
>>>>>>>
>>>>>>> Based on what I see with xfontsel, it looks like emacs may be using:
>>>>>>> -misc-dejavu sans light-extralight-r-normal--0-0-0-0-p-0-ascii-0
>>>>>>>
>>>>>>> I tried playing with the options/Set Default Font in emacs.
>>>>>>> I'm not sure why, but emacs shows a lot less than xlsfonts does.
>>>>>>>
>>>>>>> Here's what I have (from "save options") in both builds.
>>>>>>> (custom-set-faces
>>>>>>>    ;; custom-set-faces was added by Custom.
>>>>>>>    ;; If you edit it by hand, you could mess it up, so be careful.
>>>>>>>    ;; Your init file should contain only one such instance.
>>>>>>>    ;; If there is more than one, they won't work right.
>>>>>>>    '(default ((t (:family "DejaVu Sans Mono" :foundry "PfEd" :slant
>>>>>>> normal :weight normal :width normal :height 113)))))
>>>>>>>
>>>>>>> There seems to be a change in either the fonts or the rendering, from
>>>>>>> the older OI build to recent ones.
>>>>>>> The examples shown by "xfontsel" look too light in some cases too.
>>>>>>> I'd appreciate tips on how to track down this problem.
>>>>>>>
>>>>>>> Thanks
>>>>>>>
>>>>>>> On Wed, Nov 8, 2023 at 4:27 PM Gary Mills <gary_mills at fastmail.fm> wrote:
>>>>>>>>
>>>>>>>> On Wed, Nov 08, 2023 at 05:44:42PM +0100, Andreas Wacknitz wrote:
>>>>>>>>
>>>>>>>>> If you are using the gtk variant of emacs
>>>>>>>>
>>>>>>>> That's the one I'm using.
>>>>>>>>
>>>>>>>>> then it relies on pango for
>>>>>>>>> font rendering and layout which in case has dropped support for older
>>>>>>>>> font types a couple of months ago.
>>>>>>>>> So your problem might be that you are trying to use an unsupported (by
>>>>>>>>> pango) font type and thus rendering results look ugly.
>>>>>>>>> You might solve this be choosing a font of a supported font type, eg. a
>>>>>>>>> truetype font.
>>>>>>>>
>>>>>>>> There's no indication of truetype in the list of fonts that emacs
>>>>>>>> displays.  In fact, emacs will often tell me that a font does not
>>>>>>>> exist when I select that font from its list.
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> -Gary Mills-            -refurb-                -Winnipeg, Manitoba, Canada-
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> oi-dev mailing list
>>>>>>>> oi-dev at openindiana.org
>>>>>>>> https://openindiana.org/mailman/listinfo/oi-dev
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> oi-dev mailing list
>>>>>>> oi-dev at openindiana.org
>>>>>>> https://openindiana.org/mailman/listinfo/oi-dev
>>>>>>
>>>>>>
>>>>
>>>> --
>>>>          -Alan Coopersmith-                 alan.coopersmith at oracle.com
>>>>           Oracle Solaris Engineering - https://blogs.oracle.com/solaris
>>>>
>
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-- 
Dr.Udo Grabowski  Inst.of Meteorology & Climate Research IMK-ASF-SAT
https://www.imk-asf.kit.edu/english/sat.php
KIT - Karlsruhe Institute of Technology          https://www.kit.edu
Postfach 3640,76021 Karlsruhe,Germany T:(+49)721 608-26026 F:-926026

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