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Disabling dGPU on Dell XPS 9560 on Ubuntu 16.10
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| # Tested with kernel: 4.9.20-040920-generic | |
| # | |
| # Make sure to install following packages | |
| # | |
| sudo apt install acpi acpi-call-dkms | |
| # | |
| # To manually disable, you can run the following command | |
| # | |
| echo '\_SB.PCI0.PEG0.PEGP._OFF' > /proc/acpi/call # via root | |
| echo '\_SB.PCI0.PEG0.PEGP._OFF' | sudo tee /proc/acpi/call # via your own user | |
| # | |
| # To automate on startup, do the following: | |
| # | |
| echo acpi_call > /etc/modules-load.d/acpi_call.conf | |
| # Create /usr/lib/systemd/user/dgpu-off.service with the following contents: | |
| [Unit] | |
| Description=Power-off dGPU | |
| After=graphical.target | |
| [Service] | |
| Type=oneshot | |
| ExecStart=/bin/sh -c "echo '\\_SB.PCI0.PEG0.PEGP._OFF' > /proc/acpi/call" | |
| [Install] | |
| WantedBy=graphical.target | |
| # Enable the new unit file | |
| systemctl enable /usr/lib/systemd/user/dgpu-off.service |
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@jseris first off, thanks a ton for writing this up - very useful for those who don't want to use bumblebee but still want to disable the GPU. I can confirm that this also works for Ubuntu 16.04.4. There is just one thing left, for some reason when I boot up I get stuck at a black screen unless I add the following kernel parameter
nouveau.modeset=0. Since I have blacklisted the module I don't understand why this would still be necessary (and would of course prefer to avoid doing this). Any advice/pointers are appreciated.