Turn NVIDIA discrete card on

nvidia_on.sh

#!/bin/bash
set -ex

CONTROLLER_BUS_ID=0000:00:01.0
DEVICE_BUS_ID=0000:01:00.0

sudo tee /sys/bus/pci/devices/${CONTROLLER_BUS_ID}/power/control <<<on
sleep 1

sudo tee /sys/bus/pci/rescan <<<1
sleep 1

sudo tee /sys/bus/pci/devices/${DEVICE_BUS_ID}/power/control <<<auto
sudo tee /sys/bus/pci/devices/${CONTROLLER_BUS_ID}/power/control <<<auto

sudo modprobe nvidia

# modeset:Enable atomic kernel modesetting (1 = enable, 0 = disable (default)) (bool)
sudo modprobe nvidia_drm modeset=0