Comment 152 for bug 1752053

Hello. My situation was very complicated, and none of the fixes I found would work. I am running a Nvidia GTX970 with an Intel CPU and using a dual monitor setup. Ubuntu 17.04 was working very well. Later upgrading to Ubuntu 17.10, the Nvidia graphics became an issue because of Wayland, but I followed this guide and was able to set it working for 17.10, https://charlienewey.github.io/getting-nvidia-drivers-working-on-ubuntu-17-10/ . For 18.04, nothing I found online was working. I was able to setup Openbox and use that to investigate the matter. I suspected it was some sort of opengl problem since all applications requiring it would fail to run and cheking with the terminal, it would say that the libGLU1.1.so was not found, or one of those opengl libraries. Upon further investigating, it turned out that the xorg that comes stock with 18.04 does not have the latest Mesa patch that supports nvidia graphics cards. So I ended up getting the padoka ppa in order to get the latest xorg and mesa. Upon doing so, everything is working fine. I thought this fix was a little unorthodox being that I believed that Padoka was for Nouvou and AMD cards but, apparently it fixed the issue with the proprietary 396 drivers. I had the same issue with the 384, and 390. So I am not sure if this fix only pertains to the Nvidia 396 drivers, but I believe the problem stems from an Xorg that does not have the latest Mesa.

https://launchpad.net/~paulo-miguel-dias/+archive/ubuntu/mesa