openSUSE:Plymouth
Install Plymouth
At this moment Plymouth is already installed and enabled by default in the openSUSE Leap and Tumbleweed.
Troubleshoots
NVIDIA : three dots instead of animated splash
After installing the Nvidia driver, when the system boots, instead of an animated splash screen, a splash screen with three green dots and gray wallpaper may appear.
This may be because the Nvidia modules are loading too late than the plymouth service.
If the splash screen is animated when you turn it off, then to fix the problem, you need to add Nvidia modules to the early start (thanks to Herrfleisch):
# echo "options nvidia_drm modeset=1" >> /etc/modprobe.d/nvidia.conf
# echo -e "add_drivers+=\" nvidia nvidia_modeset nvidia_drm \"\ninstall_items+=\" /etc/modprobe.d/nvidia.conf \"" >> /etc/dracut.conf.d/nvidia.conf
# dracut -f
Than reboot the system.
List of open bugs regarding plymouth integration in openSUSE
Please file general feature requests, or non-SUSE specific bugs in the plymouth upstream bugzilla.