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How do I increase the font size in Ubuntu 18.04 LTS for a HDPI / 4K display?
May 13, 2018
September 20, 2023
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You may use (UNITY) Tweaks to adjust font size along with other UI elements. Install it using:
sudo apt install unity-tweak-tool
The settings I’m using for scaling on a 1920x1080 monitor are 1.38 times. You would probably want 2.00 or higher:
Text scaling factor scales both fonts and UI elements like title bars, menus, etc.
Here’s a GIF showing changing scaling from 1.38 to 1.00 and then to 2.00:
.gif above scaling starts at
1.38 on a 1920x1080 monitor. Then it is changed to
1 and everything gets tiny, which is normal. Then it is changed to
2 which is ideal for the visually challenged. Once again the icons have fixed pixel size and the font shrinking or expanding under the icon gives the illusion their size is changing.
There are others tweak tools that may be of interest in 18.04 LTS:
$ apt list | grep tweak gajim-rostertweaks/bionic,bionic 1.0.0-3 all gnome-tweak-tool/bionic,bionic 3.28.1-1 all gnome-tweaks/bionic,bionic 3.28.1-1 all mate-tweak/bionic,bionic 18.04.16-1 all mousetweaks/bionic,bionic,now 3.12.0-4 amd64 [installed] tweak/bionic 3.02-2 amd64 unity-tweak-tool/bionic,bionic,now 0.0.7ubuntu4 all [installed]