lspci | grep VGA
View integrated graphics card
lspci | grep NVIDIA
View Nvidia graphics card
lshw -numeric -C display
View detailed information about the graphics card
lsmod | grep nouveau
View nouveau driver, no output means it is not running
sudo prime-select nvidia
Switch to Nvidia graphics card
sudo prime-select intel
Switch to Intel graphics card
sudo prime-select query
View the currently used graphics card
ubuntu-drivers devices
Check all Ubuntu-recommended drivers for your current graphics card
sudo ubuntu-drivers autoinstall
Automatically install the recommended driver
nvidia-settings
Invoke the visual settings interface to set whether to use discrete graphics or integrated graphics
nvidia-smi
I used to type this command eight hundred times a day, then I learned about the watch command