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From: | Alexander Shukaev |
Subject: | bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1' |
Date: | Thu, 3 Sep 2020 12:24:30 +0200 |
On 03/09/2020 12:06, Robert Pluim wrote:
On Thu, 3 Sep 2020 11:53:05 +0200, Alexander Shukaev <emacs@Alexander.Shukaev.name> said:Alexander> On 03/09/2020 11:50, Alexander Shukaev wrote: >> On 03/09/2020 11:40, Alexander Shukaev wrote: >>> (gdb) f 7 >>> #7 0x0000555555a8d875 in xfont_supported_scripts >>> (display=0x555556594940, fontname=0x55556a79e428 "-misc-trirong >>> medium-medium-i-normal--0-0-0-0-p-0-iso10646-1", >>> props=XIL(0x7ffff27926e5), >>> encoding=0x7ffff23ab8d0) at xfont.c:266 >>> 266 xfont = XLoadQueryFont (display, fontname); >>> (gdb) pp fontname >>> #<INVALID_LISP_OBJECT 0x55556a79e428> >>> (gdb) pp fontname >>> #<INVALID_LISP_OBJECT 0x55556a79e428> >>> (gdb) p fontname >>> $3 = 0x55556a79e428 "-misc-trirong >>> medium-medium-i-normal--0-0-0-0-p-0-iso10646-1" >>> (gdb) >> It appears to always be different `fontname' here as I try multiple >> times to reproduce. Maybe it's not really hanging but is merely >> ultra-slow somehow in looping over the fonts here. Any ideas? Alexander> Hmm, right, waited for about a minute or so, and the file got opened Alexander> finally. Reopening it was instant as well as if something got Alexander> cached/loaded already. So any ideas how to speed things up here? I Alexander> don't think I've encountered that with 26.3... You can check easily enough by building emacs-27 --without-cairo, that should get you back to emacs-26's font handling. The issue is: why is Emacs falling back to the 'x' backend? Robert
The only related font configurations that I can think of are the following: (defcustom init-font-families '("Powerline Consolas" "Consolas for Powerline" "Consolas" ;; "Powerline Inconsolata-g" "Inconsolata-g for Powerline" "Inconsolata-g" ;; "Powerline Source Code Pro" "Source Code Pro for Powerline" "Source Code Pro" ;; "Powerline DejaVu Sans Mono" "DejaVu Sans Mono for Powerline" "DejaVu Sans Mono" ;; "Monospace") "List of font families." :group 'init :type 'list) (defcustom init-font-size 12 "Size of font." :group 'init :type 'integer) (defun init-frame-font-setup (&optional frame) (unless frame (setq frame (selected-frame))) (with-selected-frame frame (when (and (not noninteractive) (init-display-graphic-p)) (let ((font (assoc 'font default-frame-alist))) (if font (when (eq frame frame-initial-frame) (set-frame-font font t t) (unless noninteractive (message "Font: `%s'" font))) (let ((font-family (catch 'break (dolist (font-family init-font-families) (when (member font-family (font-family-list)) (throw 'break font-family)))))) (setq font (when font-family (format "%s-%d" font-family init-font-size)))) (when font (add-to-list 'default-frame-alist `(font . ,font)) (set-frame-font font t t) (unless noninteractive (message "Font: `%s'" font)))))))) (unless (or noninteractive (daemonp)) (when (init-display-graphic-p) (init-frame-font-setup))) (dolist (hook '(after-make-frame-functions focus-in-hook)) (add-hook hook #'init-frame-font-setup)) With what I consistently get output Font: ‘Consolas-12’ for several years already on various Linux systems that I'm using so far.
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