How to get rid of NVIDIA PowerMizer?

You need to remove whatever you've added to xorg.conf, and add something like the following:

Section "Device"
  Identifier "NVIDIA GeForce"
  Driver     "nvidia"
  Option     "RegistryDwords" "PerfLevelSrc=0x3322; PowerMizerDefaultAC=0x1"
EndSection

PerfLevelSrc=0x3322 means it's going to use fixed PowerMizer mode when on AC.

PowerMizerDefaultAC=0x1 defines the power mode, with 0x1 being Maximum performance.

There is no need to reboot, just logout/login.

How to get rid of NVIDIA PowerMizer?

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