If the device isn't producing enough power, the signal isn't going to make it to its destination and the source will never get its EDID from the display. Typically, HDMI can be transmitted up to 50 feet without issue, but some devices just don't output enough power to make it past 30 feet or less (computers and gaming systems).
The HDMI signal depends largely on the power of the device to which it is connected.
This often takes care of the problems quickly and easily.Ĭheck the length of the cables you are using. Try updating the manufacturer firmware for whichever device you believe to be the troublemaker. If this also fails, then your problem most likely lies with the source.
#5 SPEED HANDSHAKER TV#
If it still fails to work, try connecting the source to a different TV that you know to be reliable. If it does, then it's the middle man causing issues. The first step when you're having issues you believe are related to EDID is to determine if it is the source device causing the issue.Ĭonnect the device directly to the TV with nothing in between to see if this solves the problem. It might just fail to produce audio and/or video all together. In these cases, you might have trouble reaching the correct resolution or color issues. On occasion, the source device might have its EDID ROM coded incorrectly, which will cause issues from the outset. However, throw in another device like a switch, extender or a splitter and chances are your devices might stop talking to one another. As long as you are connecting a single source to a single display, it's usually smooth sailing. On the surface, this seems like it should be a simple process, right? Not so fast. It's just another way for your electronics to get a conversation going, but with a little more information. This allows the devices to handle additional data, including vendor-specific specifications, as it opens up the data strings to 32 Kilobytes. Types of information that might be communicated include: During this process, the source is attempting to find out what the Sink's maximum capabilities are so it can transmit the best possible signal. The communication between these two devices is what is known as the "HDMI handshake". When establishing an HDMI connection, the source device must be able to communicate with the display (known as the Sink) and find out what capabilities it has. This short set of letters can be the source of a major headache when it comes to HDMI. EDID is an acronym for "Extended Display Identification Data".
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