Login loop with Ubuntu 16.04.4 with NVIDIA

I’m getting stuck in a login loop after entering my user credentials in the login screen. This is similar to https://devtalk.nvidia.com/default/topic/1031673/linux/login-loop-with-ubuntu-16-04-3-with-nvidia-gm204gl-quadro-m4000-/post/5248765/#5248765, but a different machine. The current problem began after updating from Ubuntu 16.04.3 to 16.04.4 with some of the xserver-xorg packages—some were *hwe-16.04 versions and some were not. After getting that straight, I reinstalled nvidia-384, as well as generated a default xorg.conf file that was missing. I am including the output of the nvidia-bug report script and hoping someone can help me figure out how to fix this.

Thanks in advance!

nvidia-bug-report.log-2.gz (128 KB)

xorg.conf takes decimal values, so

BusID          "PCI:b:0:0"

has to be

BusID          "PCI:11:0:0"

Winner, winner—chicken dinner! Thanks again for the quick response—all is well with the world again.