I "fixed" this on Cinnamon (Ubuntu 18) by switching away from unity- greeter:
$ cat /etc/X11/default-display-manager /usr/sbin/lightdm $ sudo apt-get install lightdm-gtk-greeter then create /etc/lightdm/lightdm.conf with: [SeatDefaults] greeter-session=lightdm-gtk-greeter This also somehow avoided the buggy 4096x2160 resolution that my TV crops. 4096x2160 24.00 23.98 3840x2160 30.00 25.00 24.00 29.97 23.98 1920x1080 120.00 100.00 119.88 60.00* 60.00 50.00 59.94 30.00 25.00 24.00 29.97 23.98 unity-greeter picks 4096x2160@24 and triggers the large cursor issue (desktop, window decorations, taskbar etc) lightdm-gtk-greeter picks 3840x2160@30 and the cursor is working correctly everywhere I checked -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
