Llvmpipe is used instead of NVIDIA GPU. nvidia-settings not working and cannot switch to NVIDIA GPU

[Tigwelder]

Here’s a post I made in another thread. take a read through that and the xorg.conf and see if that gets you going in the right direction.

Nvidia-settings returns 'Connection refused. ERROR: The control display is undefined'

Here’s a confirmed working /etc/X11/xorg.conf that uses the iGPU as primary display ( intel in this case ) and then forces one of the Nvidia cards to use an EDID from file to activate the driver/GPU to be loaded by X, therefore for all 4 Nvidia GPU. You’ll have one display with a working X desktop, no spanning multi desktop and be able to use the nvidia utilities and programs on the non dektop GPUs. Set your BusID for each Device ! Configuration - Linux Hostname 5.8.0-53-generic #60~20.04.1-Ub…