I know with my first gen xhox 360 it will not turn on until the TV is on the correct HDMI port. So I have to have my TV on the HDMI port the xbox is plugged into before turning on the xbox. Maybe try turning on your TV to the HDMI port the switch is plugged into then select the port on the switch the device is plugged into then turn on the device.
I know with my first gen xhox 360 it will not turn on until the TV is on the correct HDMI port. So I have to have my TV on the HDMI port the xbox is plugged into before turning on the xbox. Maybe try turning on your TV to the HDMI port the switch is plugged into then select the port on the switch the device is plugged into then turn on the device.