I'm currently using Xubuntu 14.04 but the same problem is present in 13.10 and 13.04, and maybe in previous versions.

I always install truetype fonts and remove the anti-alias. In all the GTK applications the fonts look perfect, but in Qt applications like Scribus of Calibre the fonts have render problems. I included a image where you have an screen capture of a GTK application and a Qt application together. Underlined in red is the word "Editar". Look at how the "a" and the "r" are together in the Qt application (right side). I already installed qtcurve and adjusted the settings but nothing happens. Also followed the guide here (http://mikemcquaid.com/2011/12/01/make-qt-use-the-gtk-style-on-xfce-or-xubuntu/) and nothing happens.

Here is the image: GTK and Qt applications side by side

GTK and Qt applications side by side

Xangua, Thanks for your help. I already tried using QT configuration but it didn't work. I included an image of how the fonts look on Qt applications. As you can see in the image, sometimes the letters "join".

Screen capture Qt application under Xubuntu


1 Answer 1


You need to install qt4-qtconfig to be able to change qt applications style and fonts. I just set it to emulate the gtk engine. I never had issues at least in Gnome.

sudo apt-get install qt4-qtconfig

To enable this style, use:

Qt Configuration: choose "GTK+" under Appearance > GUI Style.
The command-line: edit the ~/.config/Trolltech.conf file by adding:


enter image description here

Source: https://wiki.archlinux.org/index.php/Uniform_Look_for_Qt_and_GTK_Applications

  • Do either of these fixes, installing qt4-config or editing Trolltech.conf, work with qt5 apps?
    – DK Bose
    Dec 16, 2014 at 1:43
  • @DKBose For Qt5 applications, you would use qt5ct: install with sudo apt install qt5ct, start with QT_QPA_PLATFORMTHEME=qt5ct qt5ct.
    – tanius
    Apr 30, 2019 at 21:48

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