Yves-Alexis Perez, >Can you run xrdb -query in both cases? 2 variants of 'xrdb -query' output (and also '/etc/lightdm/lightdm-gtk-greeter' and '~/.fonts.conf') are attached.
*customization: -color Xcursor.size: 18 Xcursor.theme: Adwaita Xcursor.theme_core: true
*customization: -color Xcursor.size: 18 Xcursor.theme: Adwaita Xcursor.theme_core: true Xft.antialias: 1 Xft.dpi: 96 Xft.hinting: 1 Xft.hintstyle: hintmedium Xft.rgba: none
fonts.conf
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lightdm-gtk-greeter.conf
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