All KLIK models have both HDMI and VGA outputs for video. The unit senses which output is connected and activates that output accordingly, giving priority to the HDMI output. In essence, the VGA output is active at all times, unless an active HDMI connection is sensed, at which point it switches to the HDMI output and disables the VGA output. Note that an HDMI cable connection to the KLIK will not in itself trigger the switch, there must be an active display connected.
Both HDMI and VGA display connectors employ EDID to sense the presence of a connected display. In addition, EDID data exchanged between the display and KLIK will cause KLIK to adapt video resolution and aspect ratio to match that of the display. In most cases, the EDID detection in KLIK will render the correct settings for the connected display, without further adjustment required by the user. EDID settings will always set KLIK to deliver the maximum resolution supported by the detected display.
There are instances however where EDID information will not be exchanged between the KLIK and the display, resulting in unexpected results. These results can include incorrect resolution, incorrect aspect ratio or even failing to detect the presence of the display altogether. Common causes of EDID exchange failure include use of displays that do not support EDID, defective cabling or adapters and the presence of other devices in the video signal chain that block the exchange of EDID data. In some cases, consumer video displays may fail to detect the connection of KLIK and blank the connected input due to signal strength.
To diagnose EDID video display issues with KLIK, first connect the VGA output to a suitable, known working display. If there is no output to the display, disconnect the VGA cable from KLIK and connect it to an HDMI display. If there is still no output, check the KLIK settings using KLIK Manager (or the KLIK embedded web page). To find the unit on the network, first scan without the subject KLIK connected, then connect to the wired network and scan for new devices. Once identified, note the display settings, with no display connected. By default, KLIK should be indicating “VGA Auto”.
Connect the HDMI display and note the settings, which should indicate “HDMI Auto”. If the settings did not change, force the change by selecting HDMI Auto from the drop-down menu. If the display does not show the KLIK standby screen, it is likely that either the display has failed to sense the KLIK or the HDMI output is defective. With the HDMI Auto setting selected, disconnect the HDMI cable and connect the VGA cable and display. The setting should change to VGA Auto and the display should show the KLIK standby screen.
In both cases above, if the settings change to indicate the connected display, EDID exchange is likely working. If there continues to be no video shown on the display, the fault is either with the display sensing the KLIK, or a defective video output on KLIK. Hardware video output failures are extremely rare however, so re-installation of firmware should be undertaken before referring the device for service or return to KLIK.
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