How do I make all GTK applications use a custom DPI setting?

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                          After upgrading from Debian 8 to Debian 9, the text editor Pluma (a Gedit fork) no longer use my custom DPI setting. I noticed the same thing with the editor Geany. Here are my Xft settings in ~/.Xresources:

    Xft.antialias: true
    Xft.autohint: false
    Xft.dpi: 100
    Xft.hinting: true
    Xft.hintstyle: hintslight
    Xft.lcdfilter: lcddefault
    Xft.rgba: rgb

The other Xft settings above are picked up Pluma, however. On the other hand, the text editor Leafpad correctly uses the DPI setting. Any clues? I use the window manager Blackbox started from a console.

Pluma (with DejaVu Sans 10):

Leafpad (with DejaVu Sans 10):

Asked by August Karlstrom (1986 rep)

Jun 21, 2017, 10:32 AM
Last activity: Jul 11, 2025, 09:05 AM

How do I make all GTK applications use a custom DPI setting?

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