I also have the same problem:
black screen after reboot into 4.13.26.46 video driver: nvidia 387.26 (from CUDA ppa)
Restarting with 4.10 solves the problem
I also have the same problem:
black screen after reboot into 4.13.26.46
video driver: nvidia 387.26 (from CUDA ppa)
Restarting with 4.10 solves the problem