Switch graphics on Pop OS
From the command line
If you are not using the GNOME Desktop Environment, you can use the system76-power command line tool. You can see the options with this command:
system76-power help
For seeing which graphics mode the system is using:
sudo system76-power graphics
For switching to NVIDIA graphics:
sudo system76-power graphics nvidia
For switching to integrated graphics:
sudo system76-power graphics integrated
For switching to hybrid graphics:
sudo system76-power graphics hybrid
For switching to compute mode:
sudo system76-power graphics compute