T400 - Samsung panel enhancement

[Colonel O'Neill]

Similar to the thread for the T410, the most optimum values that I found for my Samsung WXGA+ LED backlit panel were the following:

Red
Gamma: 1.0
Brightness: -3
Contrast: 50

Green
Gamma: 1.0
Brightness: 0
Contrast: 49

Blue
Gamma: 1.0
Brightness: -8
Contrast: 45

The values above apply to the Intel graphics control panel; I haven't done any changes for the ATI side (they aren't shared).

Some past values I had tried caused the display panel to drastically change hue when the display was tilted vertically, but these seem to add to vertical viewing stability (color-wise) at least.