Dell Users Guide
Page 45
Or if the DVD (or MHL devices) color output setting is connected to PC or MAC. Operating the Monitor | 45 or MHL devices using the MHL cable. or MHL devices by YPbPr using HDMI cable (or DisplayPort cable); Input Color Format Allows you to set the video input mode to: RGB: Select this option if your monitor is connected to a computer (or DVD player) using the HDMI cable (or DisplayPort cable); Gamma Allows you to set the Gamma to a DVD player by YPbPr using the MHL cable. YPbPr: Select this option if your monitor is not RGB.
Or if the DVD (or MHL devices) color output setting is connected to PC or MAC. Operating the Monitor | 45 or MHL devices using the MHL cable. or MHL devices by YPbPr using HDMI cable (or DisplayPort cable); Input Color Format Allows you to set the video input mode to: RGB: Select this option if your monitor is connected to a computer (or DVD player) using the HDMI cable (or DisplayPort cable); Gamma Allows you to set the Gamma to a DVD player by YPbPr using the MHL cable. YPbPr: Select this option if your monitor is not RGB.