Add scripts for controlling Optimus laptop.

script/.local/bin/darktable-launcher

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+#!/usr/bin/env fish
+
+kdesu enablegpu
+sleep 2
+
+darktable $argv
+
+kdesu disablegpu
+

script/.local/bin/disablegpu

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+#!/bin/sh
+
+echo "Restarting bumblebee service."
+systemctl restart bumblebeed.service
+sleep 1
+
+echo "Removing modules."
+modprobe -r nvidia_drm
+modprobe -r nvidia_uvm
+modprobe -r nvidia_modeset
+modprobe -r nvidia
+
+echo "Changing power settings."
+# Change NVIDIA card power control
+echo -n auto > /sys/bus/pci/devices/0000\:01\:00.0/power/control
+sleep 1
+# change PCIe power control
+echo -n auto > /sys/bus/pci/devices/0000\:00\:01.0/power/control
+sleep 1
+
+echo "Moving config files."
+# Lock system form loading nvidia module
+mv /etc/modprobe.d/disable-nvidia.conf.disable /etc/modprobe.d/disable-nvidia.conf
+mv /home/ericonr/.local/share/vulkan/icd.d/nvidiaegl_icd.json /home/ericonr/.local/share/vulkan/icd.d/nvidiaegl_icd.json.disable

script/.local/bin/enablegpu

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+#!/bin/sh
+
+echo "Moving config files."
+# allow to load nvidia module
+mv /etc/modprobe.d/disable-nvidia.conf /etc/modprobe.d/disable-nvidia.conf.disable
+# add ICD layer for vulkan
+mv /home/ericonr/.local/share/vulkan/icd.d/nvidiaegl_icd.json.disable /home/ericonr/.local/share/vulkan/icd.d/nvidiaegl_icd.json
+
+echo "Changing power settings."
+# Remove NVIDIA card (currently in power/control = auto)
+echo -n 1 > /sys/bus/pci/devices/0000\:01\:00.0/remove
+sleep 1
+# change PCIe power control
+echo -n on > /sys/bus/pci/devices/0000\:00\:01.0/power/control
+sleep 1
+# rescan for NVIDIA card (defaults to power/control = on)
+echo -n 1 > /sys/bus/pci/rescan
+
+echo "Loading modules."
+# someone said that modprobe nvidia is needed also to load nvidia, to check
+modprobe nvidia

script/.local/bin/nv-settings

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+#!/usr/bin/env bash
+
+optirun -b none nvidia-settings -c=:8
+