Reduce the number of CPU wake-ups caused by the nvidia driver - HowFlow

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Reduce the number of CPU wake-ups caused by the nvidia driver

Category: Linux | Tags: linux powertop xorg

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HowFlow — The NVidia driver causes a lot of CPU wake-ups. Here is the solution.

Posted by

aroedl 7 months ago

Just add the following Option to your xorg.conf:


Option         "OnDemandVBlankInterrupts" "true"

You can add this Option to your Device or Screen section. Here is an example Screen section (Lenovo 3000 N200):


Section "Screen" 
    Identifier     "Screen[0]" 
    Device         "Device[0]" 
    Monitor        "Monitor[0]" 
    DefaultDepth    24
    Option         "VideoOverlay" "on" 
    Option         "OpenGLOverlay" "on" 
    Option         "UseEvents" "true" 
    Option         "TripleBuffer" "true" 
    Option         "BackingStore" "true" 
    Option         "NoLogo" "true" 
    Option         "OnDemandVBlankInterrupts" "true" 
    Option         "RenderAccel" "True" 
    Option         "AllowGLXWithComposite" "True" 
    Option         "AddARGBGLXVisuals" "True" 
    Option         "DamageEvents" "True" 
    Option         "NvAGP" "0" 
    SubSection     "Display" 
        Viewport    0 0
        Depth       24
        Modes      "nvidia-auto-select" 
    EndSubSection
EndSection

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