Энергосбережение nvidia GeForce GTX 460

Привожу свои настройки в /etc/X11/xorg.conf:

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    Option         "UseEdidDpi" "FALSE"
    Option         "DPI" "96 x 96"
    Option         "NoLogo" "True" 
    Option         "Coolbits" "1"
    Option         "RegistryDwords" "EnableBrightnessControl=1; 
PowerMizerEnable=0x1;PerfLevelSrc=0x2222; PowerMizerLevel=0x3;
 PowerMizerDefault=0x3; PowerMizerDefaultAC=0x3"
EndSection