Need to source a long (ish) cable

[Dirk Diggler]

My PC is in the attic above the spare room and I've linked to my CX (directly below) with a 3m long high speed HDMI and it runs fine. I'm now looking to add my Dell S2721DGF which is on the other side of the room and I need a cable between 7.5m - 10m. I want to drive 2560x1440 @ 120Hz minimum. It'll be driven by my 6800XT so I think DP will still give me Freesync?

Is this wishful thinking or can DP provide the bandwidth over that length of cable?

 

[Armageus]

You'll need active cables to get >120hz more than 5 meters as far as I'm aware

 

[Bill Turnip]

You'll need active cables to get >120hz more than 5 meters as far as I'm aware

You MAY have luck with a standard cable, but I've learned the hard way - take the cost, get an active cable, and don't look back.

I've only done it with hdmi though, trying to get 4k 60. I thi k that's similar band with to what OP needs, so maybe hdmi is an option?

 

[Dirk Diggler]

Active meaning like this one? (Sorry, I can't link it)

ATZEBE Fibre Optic HDMI Cable -10m, High-Speed HDMI 2.0

 

[Bill Turnip]

That's the sort of thing - Important to note that it will only work one way round.

Also check that the bandwidth is sufficient for your resolution/refresh target, and that the hdmi port on your GPU and monitor are updated enough to take it.

 

[Bill Turnip]

One point is that I don't think you'll get VRR without HDMI 2.1 - Could be a deal breaker for you?

 

[Dirk Diggler]

One point is that I don't think you'll get VRR without HDMI 2.1 - Could be a deal breaker for you?

Yes, that is a deal breaker. I might need to accept defeat.

 

[Bill Turnip]

It's possible to get long 2.1 cables, do you have the necessary HDMI ports on monitor and TV?

 

[Dirk Diggler]

It's possible to get long 2.1 cables, do you have the necessary HDMI ports on monitor and TV?

Not on the Dell, although I'm now considering a monitor upgrade so the cable is still relevant.

I'll research some long HDMI 2.1 cables.

 

[Purgatory]

Not on the Dell, although I'm now considering a monitor upgrade so the cable is still relevant.

I'll research some long HDMI 2.1 cables.

FIBBR 8K HDMI Fiber Optic Cable 20M, 48Gbps 8K HDMI 2.1 Cable/AOC Support 8K@60Hz, 4K@120Hz/144Hz HDR eARC Dolby Atmos HDCP 2.2&2.3 Compatible with PS5, Xbox Series X, PC, TV​

https://www.amazon.co.uk/gp/product/B09L156L4R/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1

These work pick the length you need they are active and I use the 20 metre version without any issues on a 3090 to tv.

 

[Dirk Diggler]

FIBBR 8K HDMI Fiber Optic Cable 20M, 48Gbps 8K HDMI 2.1 Cable/AOC Support 8K@60Hz, 4K@120Hz/144Hz HDR eARC Dolby Atmos HDCP 2.2&2.3 Compatible with PS5, Xbox Series X, PC, TV​

https://www.amazon.co.uk/gp/product/B09L156L4R/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1

These work pick the length you need they are active and I use the 20 metre version without any issues on a 3090 to tv.

This is now installed and working perfectly, thanks.

 

[Purgatory]

This is now installed and working perfectly, thanks.

You're welcome mate, yes they are very good cables especially for the price and easy to manage as not super stiff.