black and white colors after installing nvidia in arch linux

i installed nvidia graphio driver in my arch linux after the reboot the colors are gone , only black and white

Please run nvidia-bug-report.sh as root and attach the resulting .gz file to your post. Hovering the mouse over an existing post of yours will reveal a paperclip icon.
https://devtalk.nvidia.com/default/topic/1043347/announcements/attaching-files-to-forum-topics-posts/