Documents the PowerMizer CLI for potential cron jobs, etc.

nvidia-x-server-settings.txt

Because PowerMizer settings in NVIDIA X Server Settings doesn't persist across sessions, 
attempts to overclock can become a nuisance.

The following documents the three CLI settings to modify the Preferred Mode as desired:

# Auto:
nvidia-settings -a [gpu:0]/GPUPowerMizerMode=2

# Adaptive:
nvidia-settings -a [gpu:0]/GPUPowerMizerMode=0

# Prefer Maximum Performance:
nvidia-settings -a [gpu:0]/GPUPowerMizerMode=1

To get rid of the output from these commands, pipe it into /dev/null like so:
nvidia-settings -a [gpu:0]/GPUPowerMizerMode=1 > /dev/null

# Confirmation:
The NVIDIA X Server Settings GUI will toggle to the chosen Preferred Mode, but if wanting to confirm on the CLI, the following will work:

nvidia-settings -q [gpu:0]/GPUPowerMizerMode

Typical output looks like this:

  Attribute 'GPUPowerMizerMode' (ComputerName:0[gpu:0]): 1.
    Valid values for 'GPUPowerMizerMode' are: 0, 1 and 2.
    'GPUPowerMizerMode' can use the following target types: GPU.