FreeSync over DP cable length issue

[Marco2G]

I notice that my monitor and GPU will gladly do FreeSync over a normal length DP cable.

 

It won't, however, work over a 10m cable. I'm assuming latency issues of the signal or something.

 

The cable I have is most definitely chinesium off of amazon. It does claim it's 8K@60Hz and it absolutely works with my 3440x1440@100Hz... just not FreeSync.

Here's the cable, if the forum allows the link: https://www.amazon.de/gp/product/B0919XLPFL/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

Does anybody know whether I might be on to something and as a follow up question, do you think a fiber DP cable would help with this? I don't game too often but when I do, tearing is the number one issue that tends to ruin the day for me.

[Marco2G]

Does anybody have FreeSync working in a "PC in other room" setup?