GDM

• Gnome Display Manager
• Projects/GDM - GNOME Wiki!
• GDM - ArchWiki

• gdm-settings An app to manage settings (including theme and background) of GNOME's Login Manager (GDM)

• GDM Settings | Flathub
• GDM 관련 설정을 할 수 있는 애플리케이션.

flatpak install io.github.realmazharhussain.GdmSettings

• Scaling Gnome login screen on HiDPI display - Ask Ubuntu
• /usr/share/glib-2.0/schemas/99_hidpi.gschema.override 파일 생성해서 200% scaling 지정

[org.gnome.desktop.interface]
scaling-factor=2
text-scaling-factor=1.0

• 글씨가 너무 크다면 text-scaling-factor=0.87 정도로 조정
• schema 반영

sudo glib-compile-schemas /usr/share/glib-2.0/schemas

• 재부팅하면 반영됨.
• Linux HighDPI