After I log into kali my screen freezes on a gray screen with static in the upper left corner. The problem seems to be driver related to my graphics card(Nvidia 960M) after I've updated to 2018.2 and kernel 4.17. I'm using the 64-bit kali. There isn't any error message, but it locks up after I enter the password during log in. I'm able to enter recovery mode and tried purging nvidia, and when I try to reinstall it it tell me "nvidia-updates-current is an invalid installation candidate"