Arch Linux User Repository

Also on an unrelated note I believe pkgconfig should be added to the make dependencies, as it is not included in a base Arch install, yet it is required to compile the package

So the GPU switching almost works correctly for me... I only use the intel and nvidia modes, I do not tend to use the hybrid mode as it is mostly useless for my use case. However, for some reason, the systemd service just disables power to the nvidia device during boot, which causes my laptop to boot in intel mode even if I set it to nvidia. What I have to do is system76-power graphics power on; modprobe nvidia and then reinitialize my x session. When that is done, my X session is fully running on NVIDIA. Which is good enough for my use case but it is still odd behavior.

Unless someone could port over the gpu-manager. Which doesn't seem hard, I just doesn't have a NVIDIA hybrid computer to test this on. I don't think messing with people's X11 config in a hacky way would be a great idea. I've added a note when installing the package to mention this issue. If there's something I missed please let me know.

Also, even if gpu-manager is ported, I'm not sure if it should be set as a dependency, since non NVIDIA users have no use for it (it seems)

I couldn't get gpu switching on my Adder WS to work properly until I added the X11 config file described here.

According to the system76-power maintainer system76-power relies on gpu-manager provided by Ubuntu to generate these configs. It would be nice if there'd be a way to generate the appropriate configs for this package too.

Edit: I see others have already pointed this out. Anyway, maybe investigating gpu-manager would point to a general solution.

@jcsanyi I tried what you suggested it did not work. The intel mode works perfectly but nvidia mode does not. Somehow /etc/X11/xorg.conf.d/10-nvidia-drm-outputclass.conf got removed on reboot or mode switching!

In intel mode, I verified that the nvidia card is powered down, as there is no entry related to nvidia card in the output of powertop. In the nvidia mode I can see that nvidia card is powered on, in the powertop output but glxinfo | grep -i "OpenGL renderer" shows:

OpenGL renderer string: Mesa DRI Intel(R) UHD Graphics 630 (Coffeelake 3x8 GT2)

Also I could not launch nvidia-settings in nvidia mode.

@tachyon - This works for me with the standard nvidia drivers. I'm on a current gazelle (gaze14) laptop.

[jcsanyi@salem ~]$ pacman -Q | grep 'nvidia\|system76'
gnome-shell-extension-system76-power-git 1.2.0.r4.gf9f05fb-1
nvidia 440.59-7
nvidia-utils 440.59-1
system76-acpi-dkms 1.0.1-1
system76-dkms 1.0.6-1
system76-driver 19.10.2-1
system76-firmware-daemon 1.0.7-1
system76-io-dkms 1.0.1-1
system76-power 1.1.3-1

Make sure you've added the PrimaryGPU configuration option described here: https://wiki.archlinux.org/index.php/NVIDIA_Optimus#Use_NVIDIA_graphics_only

It's not well documented, and broke sometime in the last few months. See here for more details: https://bbs.archlinux.org/viewtopic.php?id=251846

Can someone tell me which graphics driver to use to make it work? Right now only switching to intel works. But switching to nvidia does not work without prime. In prime mode I can only run individual applications on nvidia card but cannot drive the entire display. So basically my external HDMI and display ports are useless now.

Works perfectly for me now, thanks!

done, I have made it so it does not requre git anymore (downloads tar.gz instead), and also added a patch. Please see if it works now.