I am trying to install CUDA 9.0 and NVIDIA driver 384 on ubuntu 16.04 while having a EVGA GeForce RTX 2080 XC. I am having alot of trouble. I installed all the right drivers and followed all the right instructions as stated by NVIDIA. I believe I also blacklisted the nouveau drivers. I keep getting caught in a login loop on Ubuntu 16.05. When I go the terminal by clicking (ctrl-alt-F1), I get repeated messages of “PKCS#7 signature not signed with a trusted key”. How do i fix this? IS the GeForce RTX 2080 XC even capable to download CUDA 9.0 and NVIDIA drivers 384?