Enemy Territory – Cannot Adjust Gamma (Brightness)

Windows 8 Logo

I just installed Enemy Territory on Windows 8.1 and ran into a problem – I could not adjust the brightness (gamma) in the game. The slider would work and the brightness would flicker but then return to the default value.

I tried adjusting the Compatibility mode for the game and tried adjusting the gamma using the console in game:

/set r_gamma 1.5
/r_ignorehwgamma 1

The error in the console was this:

set DeviceGammaRamp failed

The solution turned out to be very simple – just turn off f.lux and everything was OK again!

If you have not heard of f.lux before it is a program that makes the color of your computer’s display adapt to the time of day.

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