External monitors not supported following kernel upgrade from 22.214.171.124 in Ubuntu 17.10 with Nvidia GeForce GTX graphics card and nvidia-381 package installed
Install nvidia-384 instead of nvidia-381
Ubuntu 17.10 has been working quite well for me except for a scim login error after upgrading, but sometime in January I did a kernel upgrade that broke my external monitor support.
I got a graphics card error following the upgrade mentioning a problem with nvidia-381, but was in my usual hurry and didn’t have time to write it down. However, after restarting the computer I quickly realized the only way to get external monitor support was by using the deprecated kernel.
I assumed it was a kernel bug and so waited for the next kernel upgrade cycle, but that didn’t fix it, so I set aside a morning to look into the problem.
It appears to be that nvidia-381 is not compatible with kernels after 126.96.36.199. Installing nvidia-384 fixed the problem.
Do you have questions, suggestions, or would like a bit more information? Feel free to get in touch.