To solve this issue, you can adjust your video’s resolution to be more compatible with your HDMI cable and other devices. If your video content doesn’t match the resolutions provided by either your source or output devices, signal errors may happen. Like all AV devices, HDMI cables have a set resolution for the type of content they can transmit. ![]() You stick its nozzle inside the HDMI port/s and blow, being careful that it doesn’t dislodge other components. The most effective way to clean HDMI ports is “Air Cleaning.” For this, you’ll need a compressed air duster to blow away dirt and dust that have stuck themselves onto the HDMI port components. ![]() Check both your source’s and your output’s HDMI ports, see if there’s any need for cleaning at all. Cleaning HDMI portsĭust, grime, and other debris can also cause HDMI signal loss in the BenQ projector. You can get a fresh pair of HDMI cables from Amazon or any other AV equipment stores you find. If you notice something wrong with your HDMI cable, the only way to fix this is to get a new pair. Pins that are broken can cause image distortion and discoloration, and signal loss. On top of that, examine the pins inside the HDMI head for bends or breaks. If the power source is fully functional, and so are the rest of your BenQ projector’s components, the issue may be a faulty HDMI cable.Ĭheck your HDMI cable for any cracks or breaks. Changing faulty cablesĬracked or broken cables can also cause signal loss in the BenQ projector. Most projectors provide two ports (HDMI 1 and 2). If this doesn’t work, you could also try transferring to a different HDMI port. This should refresh the HDCP handshake process, giving it a second chance to pull through. Step 4 – Plug the power source back into its socket. Make sure both ends are snug inside their respective ports. Step 3 – Unplug the HDMI cable and reattach them after ten seconds. Step 2 – Wait ten seconds and unplug the main power source. Step 1 – Press the power button on both your source and output devices. One way to get out of the issue is to restart both your source and output devices and try reconnecting your HDMI cable. HDCP or HDMI handshake issues can cause HDMI cables to lose signal. Whatever the case, we’ve compiled a list of easy and replicable solutions for you to use: Fixing HDCP/HDMI handshake issues ![]() It’s also possible that you’ve just inserted your HDMI cable into its port the wrong way or have a loose connection. It could be a handshake issue caused by HDCP or faulty cabling. There are several reasons why your BenQ projector keeps losing HDMI signal. Why does my BenQ projector keep losing HDMI signal? Will the HDCP version also affect HDMI signal?.Why does my BenQ projector keep losing HDMI signal?.
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