gnome-shell-extension-system76-power VS System76 Power Management

System76-power gnome extenstion: https://github.com/pop-os/gnome-shell-extension-system76-power

Is it possible to get this working on cinnamon?

Yes, that works! If you have ever used Pop!_OS and moved to another distro, you probably miss their GPU switching functionality. Follow the instructions on this COPR repo and if you want the GNOME extension as on Pop!_OS, you can get it from here. Clone the repo, cd into it, then change the metadata.json and add a 41 so it does support Gnome 41 (not necessary on Fedora 34) and then run make and make install. Log out and log back in and then enable it in the extensions app. This method makes it possible for you to run Wayland even on the 470 driver version.

I have tried optimus manager multiple times, but it never seemed to disable my card correctly and save as much power as on Pop!_OS so I installed the system76 drivers from the tutorial on the System76 website. You might as well want to grab the Gnome extension to switch GPUs from their Github. It is also available on the AUR if you don't want to compile it yourself.

I have installed Manjaro today and wanted to set up the system76-drivers with the system76-power gnome extension, but the command that the extension uses seems to require root privileges. Here is the driver and the extension. On Fedora, this kind of permission change is not necessary because apparently the copr repo takes care of that already.

PopOS's system-76-power actually lets you completely turn off the nvidia GPU by selecting the integrated graphics mode, which is way more power efficient.

See: https://github.com/pop-os/system76-power

Also refer to https://github.com/pop-os/system76-power/issues/153 for setting environment variables and making simple scripts with it.

One example would be, I had problems with running native version of Substance Designer. And it had something to do with always using GPU or setting environment variables(https://github.com/pop-os/system76-power/issues/153). But I wouldn't know what to look for if a random guy on a forum didn't tell me to use it with NVIDIA Graphics.

[Update 2022-02-21] It appears that there are two packages, System76-io-dkms and System76-power. From what I gather only the first is necessary. I'm not sure how to install third-party DKMS modules that are not in the official repos. The official Void documentation on this topic is sparse, is there somewhere I can look this up?

Initially it only worked with Intel CPUs but it seems it supports AMD APUs now according to this Github issue https://github.com/pop-os/system76-power/issues/73

system76-power

The performance modes are going to affect how much power the system is using (and thus how much heat it's generating), not the fan curves directly. Those profiles are defined in the system76-power application, source code here: https://github.com/pop-os/system76-power/blob/master/src/daemon/profiles.rs

The script uses udev rules that are run at specific kernel events. It creates one rule for when the Laptop switches to battery power and another for when the Laptop switches to wall power. Both rules run system76-power while providing one of the available power profiles as an argument. I went with battery and balanced respectively.

Try the fix listed here: https://github.com/pop-os/system76-power/issues/358