Adjusting Scaling Factor for GNOME/GDM

Theoretically, display server should be able to derive a proper DPI setting from EDID, but in reality this could fail at times. (eg. OS running in a VM.) In order to have things readable on HiDPI displays, we may have to adjust scaling factor manually.

GNOME

In terminal, run

To check your setting, dump dconf setting with

or simply

There should be something like

GDM

For Debian-based distros:

  1. Edit /etc/gdm3/greeter.dconf-defaults as root
  2. Add
  3. Save and close the editor
  4. Finally, run as root: dpkg-reconfigure gdm3

For other distros, check links below. 😬

References

  1. GNOME – HiDPI – ArchWiki
  2. gsettings – GIO Reference Manual
  3. Customizing the GDM appearance – GDM – Debian Wiki
  4. Customizing the Login Screen – Desktop Migration and Administration Guide – Red Hat
  5. DConf configuration – GDM – ArchWiki

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