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.INF - commands


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I wanted to ask about the .inf file structure and the possible tweaks. I have seen many different .inf versions already, looked at the file, saw the differences.. but not always could figure out the actual meaning of the commands.

These are for example the mobility tweaks from NVIDIA Mobility Modder and I would be very thankful if anyone could describe the functioins.

If its not too much demanded, maybe we could start and make some kind of command database with descriptions. This will definately help other users who would like to customize a driver for their needs.


HKR,, BandwidthFactor, %REG_DWORD%, 5

HKR,, DFPAsDefaultMonitor, %REG_DWORD%, 1

HKR,, DualViewHotKeyPolicy, %REG_DWORD%, 1

HKR,, DualViewMobile, %REG_DWORD%, 2

HKR,, DualViewPolicyID, %REG_DWORD%, 2

HKR,, DualViewAllow2ndViewAsPrimary, %REG_DWORD%, 1

HKR,, DualViewAllowNonDFPAsPrimary, %REG_DWORD%, 1



HKR,, UseHWSelectedDevice, %REG_DWORD%, 1

HKR,, PowerMizerEnable, %REG_DWORD%, 1

HKR,, PowerMizerDefault, %REG_DWORD%, 3

HKR,, PowerMizerLevel, %REG_DWORD%, 3

HKR,, PowerMizerLevelAC, %REG_DWORD%, 1

HKR,, EnableCoreSlowdown, %REG_DWORD%, 1

HKR,, EnableMClkSlowdown, %REG_DWORD%, 1

HKR,, EnableNVClkSlowdown, %REG_DWORD%, 1

HKR,, GlitchFreeMClk, %REG_DWORD%, 1

HKR,, LVDSReduceFreq, %REG_DWORD%, 0

HKR,, AllowMaxPerf, %REG_DWORD%, 2

HKR,, PerfLevelSrc, %REG_DWORD%, 0x3333

HKR,, EnableBrightnessControl, %REG_DWORD%, 1

HKR,, MB_Enable, %REG_BINARY%, 01,00,00,00

HKR,, ForceSwapInterval, %REG_DWORD%, 0

HKR,, RMDisablePteCoalesce, %REG_DWORD%, 1

HKR,, DCPerfLimitSLI, %REG_DWORD%, 2

HKR,, RMEnablePowerSupplyCapacity, %REG_DWORD%, 1

HKR,, RMPowerSupplyCapacity, %REG_DWORD%, 3

HKLM,"Software\NVIDIA Corporation\Global\NVTweak", NvCplDualViewAllowNonDFPAsPrimary, %REG_DWORD%, 1

HKLM,"Software\NVIDIA Corporation\Global\NVTweak", NvCplDualviewMoveDesktopIcons, %REG_DWORD%, 1

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Some are self explanitory when you know what the abbreviation stands for. The ones I leave blank are the ones I don't know.


BandwidthFactor - How many bus cycles to assign to the GPU (transfer rate)

DFPAsDefaultMonitor - DefaultFlatPanel...

DualViewHotKeyPolicy - HotKey usage when in DualView Mode

DualViewMobile - DualView usage on laptops


DualViewAllow2ndViewAsPrimary - refers to the remote monitor

DualViewAllowNonDFPAsPrimary - refers to anything other than the DefaultFlatPanel

EnableAGPSBA - Enable AGP Sideband Addressing (Not all laptios can do this, so we disable it.)

SoftEDIDs - Use sofware monitor Extended Display Information instead of the chip embedded in the display.

UseHWSelectedDevice - HW == HardWare == default BIOS display.

PowerMizerEnable - self explanitory

PowerMizerDefault - default power setting

PowerMizerLevel - setting to use when running on batteries

PowerMizerLevelAC - setting to use when running on AC

EnableCoreSlowdown - Allow the core clock to change speeds based on power and heat requirements.

EnableMClkSlowdown - Same as above, but referring to he MemoryClock

EnableNVClkSlowdown - Same as as above but referring to the Main clock.

GlitchFreeMClk - Fixes MemoryClock problem


AllowMaxPerf - Not sure on this one, but it's NOT what it sounds like.


EnableBrightnessControl - Newer GPUs can adjust to ambient light, but many people have trouble with this.



RMDisablePteCoalesce - There are many RM settings, where RM stands for RemoteMonitor. They usually apply when connected to a TV. I don't know what this particular one does.




NvCplDualViewAllowNonDFPAsPrimary - Allows you to select the remote monitor as the default in the nvidia control panel.

NvCplDualviewMoveDesktopIcons - Allows you to choose which monitor displays the desktop icons (in DualView mode).

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Thanks for the fast answer!

There is one more thing I can add: PerfLevelSrc - is the Powermizer state setting which has 3 different modes as far as I know:

"2222" -> disables PM on A/C and battery

"3322" -> disables PM on A/C only

"3333" -> enables PM on A/C and battery

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Great information! Thanks! :)

Also, I corrected the DualViewMobile entry above to show that it affects DualView behavior on laptops, not HotKey behavior on laptops. That's what I get for typing too fast!

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I would like to ask that there is any command which don't allow to move the desktop when I close the lid of the laptop on VISTA. In the XP drivers when I close the lid of the laptop nothing happened and it was good for me.(videocard:GO6100 in ASUS A6M laptop)

Thanks in advance,


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