Comment # 23 on bug 1008489 from Aleksey Kontsevich

I have same issue on latest openSUSE Tumbleweed:
Aug 25 12:09:40 localhost systemd[1]: Received SIGRTMIN+21 from PID 531
(plymouthd).
After installing nvidia drivers splash on boot disappeared and I see only
blinking screen with cursor during boot:
https://forums.opensuse.org/showthread.php/526739-Splash-screen-on-boot-disappeared

Is it Plymouth bug or nvidia? Seems works fine with noveau.