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20 Foot Displayport cables for Acer XB270HU not working

By romanovd1313 ·
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For my Acer XB270HU I've tried the following 20 foot cables and neither are working:

#1
Monoprice SlimRun AV DisplayPort Fiber Cable:
https://www.monoprice.com/product?p_id=21804

#2
Tripp Lite DP > HDMI cable:
https://www.amazon.com/gp/product/B0716N9LJM
In combination with Active HDMI > DP converter:
https://www.amazon.com/gp/product/B01MZ6UT21

These cables are working with my other monitors. My 10 foot CableMatters DP > DP cable works with the Acer monitor, but I need around a 20-foot cable.

You can view the specs of the Acer XB270HU here; the only port is a Displayport. No HDMI:
https://www.newegg.com/Product/Product.aspx?Item=N82E16824009742

Any suggestions? I am willing to pay as much as $250.
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OK I'm no expert in this but when I read your question I immediatly

by HAL 9000 Moderator In reply to 20 Foot Displayport cable ...

Asked myself what is the maxinum length of one of these cables?

A quick Google search brought this up

This decision limited confusion in the market place, but set the maximum limit for a certified DisplayPort cable at 5 metres. Using couplers to join two certified DisplayPort cables together for a run longer than 5 metres will result in loss of signal. There is currently no workaround for this length limit.Nov 11, 2013

But apparently some cables are better than others and a longer length may be possible though I personally feel that 20 feet would be way over the upper limit.

However I may be completely wrong as I have never tried to use one of these cables anywhere near that type of length.

Col

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