From ArchWiki

This article is a stub. It may be confusing, not contain enough information, or be a placeholder for an article to come. People are invited to expand it to full article status and remove this box.

[edit] Introduction

The scope of this article is to outline common DPI font settings for modern desktops and to resolve DPI conflicts by various configuration files.

[edit] Common Settings

Default DPI settings vary between Operating Systems:

• Windows: 96/110 dpi (Normal/Large Print)
• Mac: 72 dpi
• Linux: 96 dpi

[edit] Changing DPI settings

Changing DPI settings is commonly done in the Xorg configuration file, but some gpu drivers offer a special syntax.

Don't forget to restart your X server in order to apply the changes.

[edit] NVIDIA

For example setting DPI to 96x96 is easily done by adding this line to your monitor section:

Section "Monitor"
    ...
    Option "DPI" "96x96"
EndSection