The message INPUT:HDMI will be displayed on a blank screen if the system is configured to display video from the HDMI input on the computer, but an HDMI video device is not connected to the HDMI port. The HDMI input port on the computer is used to display HD video and audio from a device, such as a DVR or Cable box, with an HDMI output port. The HDMI SELECT button is used to switch the display input between the computer and a connected HDMI device.
To resolve the issue, press the HDMI SELECT button to switch the input to PC mode.
NOTE: When using the computer input, INPUT:PC may be displayed on the screen.