color emoji are broken with fontconfig 2.15

[Jeremy Bícha]

The Noto Color Emoji font is no longer used to show emoji. Many emoji no longer show and the few that do are not in color.

[Haw Loeung (hloeung)]

The workaround detailed upstream works for me - removing /etc/fonts/conf.d/70-no-bitmaps.conf and re-generating your fonts cache.

[Alex Murray (alexmurray)]

As per https://gitlab.freedesktop.org/fontconfig/fontconfig/-/issues/409#note_2298588 this can also be fixed by adding an additional rule to /etc/fonts/conf.d/70-no-bitmaps.conf of the form:

<patelt name="scalable"><bool>false</bool></patelt>

[Launchpad Janitor (janitor)]

This bug was fixed in the package fontconfig - 2.15.0-1.1ubuntu1

---------------
fontconfig (2.15.0-1.1ubuntu1) noble; urgency=medium

  * Merge with Debian unstable. Remaining changes:
    - debian/source_fontconfig.py, debian/fontconfig.install:
      + Install apport hook
    - debian/fontconfig-config.install:
      + Install fonts-conf.5.gz
    - Add 04_ubuntu_monospace_lcd_filter_conf.patch:
      + Use legacy lcdfilter with smaller monospace fonts
    - Add 05_lcdfilterlegacy.patch: Recognize const value "lcdfilterlegacy",
      used in Ubuntu before upstream introduced "lcdlegacy"
    - Add 07_no_bitmaps.patch:
      + Install 70-no-bitmaps-except-emoji.conf
    - Add 0001-cache-If-nsec-is-zero-don-t-use-it-for-comparisons.patch
      + If nsec is zero, don't use it for comparisons
    - Drop debian/fontconfig-config.NEWS, debian/fontconfig-config.templates,
      debian/fontconfig-config.config, and associated po files.
      Modify debian/rules, debian/fontconfig-config.postinst,
      debian/fontconfig-config.postrm, and debian/README.Debian.
      + Don't provide debconf prompts
    - debian/fontconfig-config.maintscript:
      + Entries due to dropped Ubuntu patches and move from /etc to /usr
    - debian/rules:
      + Config option to generate the 10-sub-pixel-rgb.conf symlink
    - debian/control:
      + Make fontconfig-config break/replace kubuntu-settings-desktop
        << 1:23.04.3 to handle symlink conflict

fontconfig (2.15.0-1.1) unstable; urgency=high

  * Add fix-emoji-no-bitmap-font.patch and update
    debian/fontconfig-config.config to allow emoji font when no bitmap fonts
    are allowed (which has been Debian's default for many years)
    (Closes: #1064267) (LP: #2054924)

 -- Jeremy Bícha <email address hidden> Sun, 10 Mar 2024 19:46:01 -0400