calme420:
It's not that R+G+B is "compensating" past their peak, rather that is is doing it within their own available range.
That is simply a saturation boost, which pushes the gamut into clip earlier.
And it will always break calibration, as it is totally inaccurate.
The only way to trick the LG into enabling saturation boost during calibration (as enabling calibration mode always disables it) is to try to play a video clip in the background.
But that is not guaranteed to keep the saturation boost enabled.
Steve
Steve Shaw
Mob Boss at Light Illusion