I have deepin 20 ans last Nvidia driver for my gpuWhat is your OS and did you install NVIDIA Drivers?
Have a look here if you use Ubuntu - https://askubuntu.com/questions/362722/how-to-fix-plymouth-splash-screen-in-all-ubuntu-releases
Deepin is based on Debian did you look at the link for Ubuntu since Ubuntu is also based on DebianI have deepin 20 ans last Nvidia driver for my gpu