Adding MUTTER_DEBUG_DISABLE_HW_CURSORS=1 to /etc/environment and rebooting had no effect on the issue. White square "mouse pointer" is present on gdm login screen if /usr/share/icons/adwaita/cursors is missing (renamed).
If instead I install a symbolic link .../Adwaita/cursors -> .../Yaru/cursors and restart gdm I get
valid mouse pointers.
gdm is clearly looking for its cursor files in the Adwaita theme directory rather than Yaru.
Adding MUTTER_ DEBUG_DISABLE_ HW_CURSORS= 1 to /etc/environment and rebooting had no effect on the issue. White square "mouse pointer" is present on gdm login screen if /usr/share/ icons/adwaita/ cursors is missing (renamed).
If instead I install a symbolic link .../Adwaita/cursors -> .../Yaru/cursors and restart gdm I get
valid mouse pointers.
gdm is clearly looking for its cursor files in the Adwaita theme directory rather than Yaru.