VarTech Systems VTPC190VR User Manual page 19

 Display Configuration
Primary IGFX Boot Display
Select the video device which will be activated during POST (Power-On Self Test). The
default is LVDS.
Backlight Control
Select panel backlight control mode.
LVDS Panel Type
Select LVDS panel resolution; see the selection options in image above.
Brightness
Select the brightness of LVDS panel ranging from 30% to 100%. The default setting is
70%.
19.0" Enclosed VESA Mount PC User's Guide Page 19