Optimus Manager - Manjaro
https://wiki.manjaro.org/index.php?title=Optimus_ManagerBy default, the daemon assumes that your display manager service has the name alias display-manager (should be the default on Arch and Manjaro). If it isn't the case, you have to specify the name manually so that optimus-manager can find it. See the login_manager parameter in the configuration file, in the [optimus] section.
Optimus Manager - Tutorials - Manjaro Linux Forum
archived.forum.manjaro.org › t › optimus-managerDec 15, 2018 · optimus-manager This Linux program provides a solution for GPU switching on Optimus laptops (a.k.a laptops with dual Nvidia/Intel GPUs). Manjaro is supported: Only Xorg sessions are supported (no Wayland). Supported display managers are : SDDM, LightDM, GDM. The program may still work with others but you have to configure them manually (see this section). Regression: GDM support is currently ...
Optimus Manager - Manjaro
wiki.manjaro.org › index5.11 I do not use a display manager, or I do not want optimus-manager to stop/restart my display manager 5.12 When I switch to Nvidia, the built-in screen of the laptop stays black 5.13 Even after disabling the daemon, it is still doing something to my Xorg or login manager configuration.