I have a setup where my PC is located across the living room, and I currently use a long HDMI cable (about 30-40 feet) to connect it to my TV. However, I'm experiencing problems where the screen intermittently cuts in and out as if it's struggling to maintain a connection. I've tried this setup on two different TVs and with different HDMI cables, but the problem persists. Interestingly, when I switch to a DisplayPort to HDMI cable, the issue disappears. I'm looking for the best solution to ensure a stable connection—should I purchase a long DisplayPort to HDMI cable, use an adapter, or is there another option I might be overlooking?
5 Answers
Have you considered using a wireless HDMI kit? This allows you to connect wirelessly between your PC and TV. You can find some decent quality kits online, which might be worth checking out, especially if you want to avoid cables altogether.
You might want to consider using an amplified or optical HDMI cable. A standard HDMI cable can struggle with signal over distances like that—especially at 40 feet—leading to degradation issues. An active cable should maintain a stable connection for you.
It could also be the HDMI port itself causing issues. You might try using an adapter to see if that improves the connection. There are also optical HDMI cables available for longer distances, but they can be a bit pricey.
I’ve got a newer graphics card (5070 Ti) like yours, and after running a quality check on my HDMI, upgrading to a better one really made a difference.
Keep in mind that passive HDMI cables are only rated effectively up to about 25 feet. If you go beyond that, you're likely to face issues like voltage drop. You could look into getting an HDMI booster that plugs in and powers itself with 5v, which could solve your connection problem.
Another option could be to use HDMI to Ethernet converters. You'd first convert HDMI out from your PC to Ethernet, then run that to your TV, where you can convert back to HDMI. HDMI cables aren’t designed for long runs, so this might be a solid workaround.
I've been using an active optical cable (AOC) for a while, and it works perfectly even at long distances.