4k @ 60hz over 15metres help?

[Snookums]

I’m looking at outputting from my pc to a TV. Total span is about 12m so guessing a 15m cable is what I’ll need. It’s displaying to a 4k screen at 60hz but it is only hdmi 2.0 input. Pc output is a 4080 suprim so hdmi 2.1

I just need clarity. Plenty of places say hdmi is good for that distance, others say an active cable is needed.

What solution would you guys suggest for this? Would a DP to hdmi make any difference?

 

[Captain_Bosh]

I'd recommend a 15m fibre optic hdmi 2.1 cable, just in case you upgrade the TV at some point.

(HDMI 2.0 should work too but Ive found them hit and miss at 15m, saying that you would be well within your consumer rights to return one if it didnt work at 4K@60)

 

[Rroff]

Without some kind of repeater or active cable 4K@60Hz at that distance will be a complete lottery depending on the cable, display and what is driving it.

 

[willhub]

I've got a 10M cable that just about handles 4k 60, and it only does HDR if it feels like it, and that's at 8bit RGB, I think 15m cable that is capable is going to be pretty expense, I resorted to just putting my PC behind my sofa, using a 5m long HDMI 2.1 cable for £20 and then I stream my PC to the desk upstairs , my handheld or mobile.

 

[Snookums]

Figure it seemed pretty hit and miss. Thought id move the pc for the meantime as I’m not really using in my office atm anyway.

For some reason a hdmi cable that output at 5120x1440 at 60hz isn’t outputting at 4k@60hz on my tv. Even the 1440p isn’t showing 60hz available only 30hz. I’m not 100% certain it’s a 2.0 cable but surely it must be if it can do 60hz at 5120x1440?

 

[wunkley]

Fibre optic HDMI is the safe bet when going long. I run 2 30m ones..