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Tags: 18.04   gnome   fonts   display-resolution  
Link: 🔍 See Original Answer on Ask Ubuntu ⧉ 🔗

URL: https://askubuntu.com/q/1157937
Title: How do I increase the font size for a specific application in Ubuntu 18.04 running Gnome?
ID: /2019/07/12/How-do-I-increase-the-font-size-for-a-specific-application-in-Ubuntu-18.04-running-Gnome_
Created: July 12, 2019    Edited:  July 13, 2019
Upload: September 15, 2024    Layout:  post
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Create a script call ue (Unity Editor). Place within it:

#!/bin/bash
xrandr --dpi 144
unity-editor "$@"    # Or whatever the program is you want to run

Mark the script as executable using:

chmod a+x ue

Call the script using

./ue

Adjust 144 to 192 if you want it double magnification. Smaller if you want less magnification.

Your screen may blink when script starts up but that is normal.


TL;DR

The default DPI (Dots Per Inch) is 96. When set to 100 font size increased by 4% which might not be noticeable. To confirm initial DPI use one of these commands:

$ xdpyinfo | grep dots
  resolution:    96x96 dots per inch

$ grep DPI /var/log/Xorg.0.log
[     9.555] (--) NVIDIA(0): DPI set to (43, 44); computed from "UseEdidDpi" X config
[     9.761] (==) modeset(G0): DPI set to (96, 96)

In the above script you can reset xrandr back to default DPI of 96 by adding the following line to the bottom:

xrandr --dpi 96

I’ve never encountered a need to do this, but you might.

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