[Bug 1776617] [NEW] kubuntu-settings-desktop breaks subpixel font rendering on XFCE

Ingo Ruhnke grumbel at gmail.com
Wed Jun 13 08:26:10 UTC 2018

Public bug reported:

I am a Xubuntu/XFCE user and noticed that my subpixel rendering was
broken. Even so the subpixel order was set to "None", fonts would render
with subpixel order "RGB". If I set the subpixel order to BGR, Vertical
RGB/BGR however things would work. Only the 'None' option had the

The problem turned out to be this symlink from the kubuntu-settings-
desktop package:


which is pointing to:


Seems like the "append" still overrides the setting if the setting is

$ cat /etc/fonts/conf.d/10-sub-pixel-rgb.conf
<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<!--  Enable sub-pixel rendering --> 
  <match target="pattern">
      This configuration is available on the major desktop environments.
      We shouldn't overwrite it with "assign" unconditionally.
      Most clients may picks up the first value only. so using "append"
      may simply works to avoid it.
    <edit name="rgba" mode="append"><const>rgb</const></edit>

** Affects: kubuntu-settings (Ubuntu)
     Importance: Undecided
         Status: New

You received this bug notification because you are a member of Kubuntu
Bugs, which is subscribed to kubuntu-settings in Ubuntu.

  kubuntu-settings-desktop breaks subpixel font rendering on XFCE

To manage notifications about this bug go to:

More information about the kubuntu-bugs mailing list