First, check https://asus-linux.org/faq/ and see if your answer is there.
#### Q: asusctl says some gibberish about a dbus error!
A: Reinstall the DKMS modules. https://asus-linux.org/faq/#q-how-do-i-rebuild-the-dkms-modules
A: Reinstall the DKMS modules, `hid-asus-rog` or `asus-rog-nb-wmi`. https://asus-linux.org/faq/#q-how-do-i-rebuild-the-dkms-modules
#### Q: My system is stuck in "integrated" graphics mode, even when I tell it to boot nvidia!
A: Try to boot into hybrid mode, and see what `xrandr --listproviders` shows. It should list 2 GPUs, AMD and Nvidia. If nvidia isn't listed, then your Nvidia drivers are not installed correctly.