Error startdde after install nvidia-driver

After install nvidia-driber from driver-manager reboot pc and after login, black screen and returned at login

Sorry for my english

This problem is more serious,the system is damaged,only reinstall the system.
这个问题比较严重，系统已损坏，只能重新安装系统。

I have reinstalled the system twice. ... any case just install-driver show this problem... ( two monitor connected)

I have no language,which means that the driver you installed is not compatible with your system,but you also install......
无语，这说明你所安装的驱动与你的系统不兼容，还安装。。。

Strange ... nvidia gtx 980 is compatible with nvidia-driver 375 ...