Comment # 99 on bug 1002875 from Cliff Zhao

(In reply to Aleksey Kontsevich from comment #98)
> > Nice search, so this bug could be close. thanks!
> 
> Yes, could be closed when above commands added to nvidia drivers install
> scripts as these packages maintained by SUSE.

Maybe the maintainer for Nvidia driver's package could consider this solution.
But from my side there's no guarantee that Plymouth will work even these
commands the added to the Nvidia driver script in the future. Because as you
know, it is a proprietary driver. I'm really sorry for that.