[Bash Script Enable/Disable Nvidia GPU on XPS15 9570 running Manjaro] Bash script to enable/disable the NVIDIA GPU using ACPI commands in Manjaro Linux because bbswitch can switch it off but fails to switch it back on. I suggest to put these scripts in /usr/local/bin/ and put disable-nvidia.conf and disable-ipmi.conf and blacklist.conf in /etc/m…

01-noautogpu.conf

Section "ServerFlags"
        Option "AutoAddGPU" "off"
EndSection

README.md

I had trouble using bbswitch on my XP15 9570 running Manjaro Linux 18.04. After some digging I found the following method in the forums to manually enable/disable the Nvidia GPU

Requirements

• Install video-linux using mhwd sudo mhwd -i pci video-linux
• Then install the nvidia driver (not using Manjaro's mhwd tool, just do it using pacman) sudo pacman -S nvidia
• Then install bumblebee (this give you optirun) sudo pacman -S bumblebee

Setup

Modify the following lines in /etc/bumblebee/bumblebee.conf:

• Driver=nvidia
• KernelDriver=nvidia
• PMMethod=none

Make sure that /etc/modprobe.d/mhwd-gpu.conf is empty, if it's not, delete the entries related to nvidia. (assuming you just started manjaro and are now installing the nvidia drivers, then there shouldn't be any other non-gpu related entries)

Put the file 01-noautogpu.conf in /etc/X11/xorg.conf.d/

Then we need to add the following modprobe configuration files to /etc/modprobe.d/:

• blacklist.conf
• disable-ipmi.conf
• disable-nvidia.conf

Then install a systemctl service to automatically disable the Nvidia GPU on shutdown, by first putting the file disable-nvidia-on-shutdown.service in /etc/systemd/system/ and then registering the service by running sudo systemctl daemon-reload then sudo systemctl enable disable-nvidia-on-shutdown.service in your terminal

Then add the file nvidia_pm.conf to /etc/tmpfiles.d/

Then for convenience sake add the following 2 scripts to /usr/local/bin so you can easily access them without typing the full script path:

• enablegpu.sh
• disablegpu.sh

Also don't forget to chmod a+rx those 2 scripts

• sudo chmod a+rx /usr/local/bin/disablegpu.sh
• sudo chmod a+rx /usr/local/bin/enablegpu.sh

Restart your machine.

Usage

Now whenever you need the Nvidia GPU, simply open your terminal and run enablegpu.sh to switch it on

Similarly if you want to switch it off run disablegpu.sh

To actually utilize the GPU to handle the graphics of a specific application, use optirun optirun my_cool_graphics_app

Tips

Also if you end up having screen resolution problems just remove /etc/X11/xorg.conf or rename it if you want to keep a backup

You can use autorandr to make youre laptop remember the screen resolutions settings you prefer and automatically apply them when appropriate

You can use nvidia-smi to check if your Nvidia card is responding/working.

You can use glxgears to test your graphics performance

• run glxgears to test your integrated intel graphics
• run optirun glxgears to test your discrete nvidia graphics (alternatively use the -v flag for a verbose output)

blacklist.conf

blacklist nouveau
blacklist rivafb
blacklist nvidiafb
blacklist rivatv
blacklist nv
blacklist nvidia
blacklist nvidia-drm
blacklist nvidia-modeset
blacklist nvidia-uvm
blacklist ipmi_msghandler
blacklist ipmi_devintf

disable-ipmi.conf

install ipmi_msghandler /usr/bin/false
install ipmi_devintf /usr/bin/false

disable-nvidia-on-shutdown.service

[Unit]
Description=Disables Nvidia GPU on OS shutdown

[Service]
Type=oneshot
RemainAfterExit=true
ExecStart=/bin/true
ExecStop=/bin/bash -c "mv /etc/modprobe.d/disable-nvidia.conf.disable /etc/modprobe.d/disable-nvidia.conf || true"

[Install]
WantedBy=multi-user.target

disable-nvidia.conf

install nvidia /bin/false

disablegpu.sh

#!/bin/sh

modprobe -r nvidia_drm
modprobe -r nvidia_uvm
modprobe -r nvidia_modeset
modprobe -r nvidia

echo -n auto > /sys/bus/pci/devices/0000\:01\:00.0/power/control
sleep 1
echo -n auto > /sys/bus/pci/devices/0000\:00\:01.0/power/control
sleep 1

mv /etc/modprobe.d/disable-nvidia.conf.disable /etc/modprobe.d/disable-nvidia.conf

enabledgpu.sh

#!/bin/sh
mv /etc/modprobe.d/disable-nvidia.conf /etc/modprobe.d/disable-nvidia.conf.disable

echo -n 1 > /sys/bus/pci/devices/0000\:01\:00.0/remove
sleep 1
echo -n on > /sys/bus/pci/devices/0000\:00\:01.0/power/control
sleep 1
echo -n 1 > /sys/bus/pci/rescan
modprobe nvidia

nvidia_pm.conf

w /sys/bus/pci/devices/0000:01:00.0/power/control - - - - auto