I have this awkward issue,
Just made a fresh Ubuntu install (18.04), on my Dell XPS 9560, which I have an Intel GPU and a dedicated Nvidia 1050.
I also have an Akitio Node Pro Thunderbolt 3 eGPU with an Nvidia 1080 TI
I had issues with the nouveau driver which didn't let my laptop to go past the login screen - disabled. Also had issues with the Official Nvidia Drivers which the pre-installation failed, and the fact that bumblebee didn't seem to work at all - nvidia-settings didn't start saying can't find drivers.
I now managed to remove everything and install the latest drivers via the CUDA 9.2 toolkit install.
nvidia-smi -L recognizes both GPUs (Internal 1050 and eGPU 1080 Ti)
eek@EEK-XPS:~$ nvidia-smi -L GPU 0: GeForce GTX 1050 (UUID: GPU-bde2a9a0-4e30-5bb7-a131-95c438e827a2) GPU 1: GeForce GTX 1080 Ti (UUID: GPU-d54c0a53-1d60-5f3d-399c-7e318b1de34f)
The question is, how can I make my external display which is connected to the 1080 Ti work?
Currently I either run it via Intel GPU (which runs at 4k) or via the 1050 GPU (which apparently supports just 1080p lol) but plugged into the 1080 Ti doesn't work at all.
I tried creating an xorg.conf
BusID "PCI:0b:00.0" # bus from lspci
0b:00.0 VGA compatible controller: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] (rev a1)
I tried to change the PCI to just
PCI:00:0b:00, but none apparently work, don't really know how to add the bus there, since the bus is
0b:00 and function is
Any ideas what I can do to enable my external display to work via the connected eGPU? (On Windows it's just plug in and that's it).