It seems xubuntu-default-settings installs the following files/directories. I do not see a lightdm.conf or any resolution specs listed in any of the files:
/usr/share/lightdm /usr/share/lightdm/lightdm-gtk-greeter.conf.d /usr/share/lightdm/lightdm-gtk-greeter.conf.d/30_xubuntu.conf /usr/share/lightdm/lightdm.conf.d /usr/share/lightdm$ ls -al lightdm.conf.d/ total 44 drwxr-xr-x 2 root root 4096 Mar 6 20:35 . drwxr-xr-x 5 root root 4096 Oct 17 17:34 .. -rw-r--r-- 1 root root 152 Aug 29 2018 50-disable-guest.conf -rw-r--r-- 1 root root 76 Aug 29 2018 50-disable-log-backup.conf -rw-r--r-- 1 root root 66 Aug 29 2018 50-greeter-wrapper.conf -rw-r--r-- 1 root root 62 Aug 29 2018 50-guest-wrapper.conf -rw-r--r-- 1 root root 45 Aug 29 2018 50-xserver-command.conf -rw-r--r-- 1 root root 47 Jul 28 2018 50-xubuntu-numlock.conf -rw-r--r-- 1 root root 45 May 3 2017 60-lightdm-gtk-greeter.conf -rw-r--r-- 1 root root 30 Jul 28 2018 60-xubuntu.conf -rw-r--r-- 1 root root 164 Aug 27 2018 90-nvidia.conf /usr/share/lightdm$ ls -al lightdm-gtk-greeter.conf.d/ total 16 drwxr-xr-x 2 root root 4096 Oct 17 17:35 . drwxr-xr-x 5 root root 4096 Oct 17 17:34 .. -rw-r--r-- 1 root root 319 May 3 2017 01_ubuntu.conf -rw-r--r-- 1 root root 267 Jul 28 2018 30_xubuntu.conf $ less 60-lightdm-gtk-greeter.conf [Seat:*] greeter-session=lightdm-gtk-greeter $ less 60-xubuntu.conf [Seat:*] user-session=xubuntu $ less 90-nvidia.conf [SeatDefaults] # Force using traditional X type=xlocal # Scripts to handle PRIME display-setup-script=/sbin/prime-offload display-stopped-script=/sbin/prime-switch $ less 01_ubuntu.conf # Ubuntu specific defaults # [greeter] background=/usr/share/backgrounds/warty-final-ubuntu.png theme-name=Ambiance icon-theme-name=LoginIcons font-name=Ubuntu 11 xft-antialias=true xft-dpi=96 xft-hintstyle=slight xft-rgba=rgb indicators=~host;~spacer;~session;~language;~a11y;~clock;~power; clock-format=%d %b, %H:%M $ less 30_xubuntu.conf # Xubuntu specific defaults # Settings stack on top of 01_ubuntu.conf # [greeter] background=/usr/share/plymouth/themes/xubuntu-logo/wallpaper.png theme-name=Greybird icon-theme-name=elementary-xfce-dark font-name=Noto Sans 9 keyboard=onboard screensaver-timeout=60 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1770948 Title: Mouse cursor size is large and inconsistent on 4K displays in XFCE To manage notifications about this bug go to: https://bugs.launchpad.net/xfce4-settings/+bug/1770948/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs