GDM3: Change Wallpaper Change background color Speed up GDM3 after boot

Problem: By default Debian with GDM3 is slow on older Hardware like Laptops or PCs with small Graphic Card Background: GDM3 shows Images at size 800×600 an zooms up to Screen Size, this burns speed. Solution: edit gdm3-theme config sudo nano /usr/share/gdm/greeter-config/20_debian and change to #Use a specific background #/desktop/gnome/background/picture_filename /..path #to wallpaper #/desktop/gnome/background/picture_options zoom … Read more