I found out that the 4.13.0.31 kernel was from the artful security repo. When I use 'dkms status' it shows that the bumblebee and nvidia kernel modules appear to be present. I just tried booting with the 4.14.0.31 kernel again. This time it did not crash. However, it appeared that my graphics card lost its' capability and the screen was drawing windows very slowly. I lost my ability to change the screen resolution. I think there is something wrong with kernel 4.13.0.31.
I found out that the 4.13.0.31 kernel was from the artful security repo. When I use 'dkms status' it shows that the bumblebee and nvidia kernel modules appear to be present. I just tried booting with the 4.14.0.31 kernel again. This time it did not crash. However, it appeared that my graphics card lost its' capability and the screen was drawing windows very slowly. I lost my ability to change the screen resolution. I think there is something wrong with kernel 4.13.0.31.