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  1. Qt
  2. QTBUG-80967

Font hinting configuration pickup is broken in 5.14.0

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P1: Critical P1: Critical
    • 5.14.1, 5.15.0 Alpha
    • 5.14.0
    • GUI: Font handling
    • None
    • Last Archlinux
      freetype 2.10.1
      fontconfig 2.13.91
    • Linux/X11
    • b31852c4caa36cc564e25adbdacfa534e1dfe7c0 (qt/qtbase/5.14.1)

      After upgrading 5.13.2->5.14.0 font rendering is changed in KDE applications despite no config changes were made. I have full hinting in fontconfig (see the attached config file), but after upgrade fonts are rendering with slight/no hinting (so, system configuration is ignored). In GTK applications everything is fine and fonts are rendering as before (full hinting). Downgrade to v.5.13.2 helps.

       

      UPD: setting `QT_AUTO_SCREEN_SCALE_FACTOR` to `0` or `QT_ENABLE_HIGHDPI_SCALING` to `0` helps me to get the proper font hinting on 5.14.0. But my DPI is not high (96).

        1. xdpyinfo.txt
          66 kB
          Roman Kosenko
        2. local.conf
          0.7 kB
          Roman Kosenko
        For Gerrit Dashboard: QTBUG-80967
        # Subject Branch Project Status CR V
        286420,5 Restore QHighDPIScaling::isActive() 5.13 behavior 5.14.1 qt/qtbase Status: MERGED +2 0

            sorvig Morten Sørvig
            kite Roman Kosenko
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              Created:
              Updated:
              Resolved:

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