On Thu, 4 Oct 2001, Davor Buvinic Gonella wrote:
> Hi,
>
> I have a question with regards to gamma correction support in XFree86 that
> maybe someone in this mailing list can answer me.
>
> My problem comes when I change the gamma ramps using
> XF86VidModeSetGammaRamp(). If after that I query about the gamma correction
> value using XF86VidModeGetGamma() I get the last value set with
> XF86VidModeSetGamma(). The new ramp can have totally diferent gamma value if,
> for example, I change the ramp to adjust not only this value but brightness
> and contrast too. Or the gamma correction value can makes no sense for a
> special ramp loaded in the LUT.
>
> What is the right way to handle this situation?
Don't know. The Gamma value just doesn't make sense for
such things. Maybe just ignore it or not report it (leave it
greyed out or something) when it doesn't match the ramp?
Mark.
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