So I have a Dell XPS laptop with an internal GTX 1050. Now I want to use an Razer Core X with a GTX 1080ti. I am using driver 430.34. Running Ubuntu 18.04. Using
nvidia-smi
it detects both GPUs just fine. The problem comes from trying to get an additional monitor working besides my laptop's own screen. I used eGPU switcher ( https://github.com/hertg/egpu-switcher) as well as writing my own xorg configuration file but the best I got was that the second monitor (connected to 1080ti on eGPU) worked, but that my laptop monitor no longer got detected or worked. Any suggestions or tips?
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
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I fixed a similar issue on my system today with a one line change in a config file. This is copied from my askubuntu response here:
https://askubuntu.com/questions/1033785/external-monitor-not-detected-on-ubuntu-18-04/1165791#1165791
Run X11 as root. The one line fix is to add this to this to /etc/X11/Xwrapper.config:
needs_root_rights = yes
Found Here:
https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857
All my external displays are now detected and working on gdm3
My System:
Ubuntu 18.04.3 LTS
Lenovo T480
Intel® Core™ i7-8650U CPU @ 1.90GHz × 8
GeForce GTX 1070 Ti/PCIe/SSE2 via Razer Core X over Thunderbolt 3
GNOME 3.28.2
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
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