- 23 months ago
I have a problem with one of my monitors, it's an Alienware AW2518HF 240hz Full HD (freesync)
Dell / Alienware does not provide a DP cable but only an HDMI 2.0 cable (up to 120hz).
I've bought this monitor and I've used a Ugreen DP cable which that did not support 240hz or 144hz after trying the 3 different output of my GPU (R9 Fury).
I've received a message that there was no DP cable detected, it was random, it could happen on windows, in game ...
So I thought the problem was because of the monitor, so I asked Dell for another one which I received quickly.
I've tried the same DP cable on it and same problem, so I've contacted Ugreen on amazon, they've told me that the cable did not support the resolution 1920x1080 @ 240hz.
So I've bought another DP cable, this one: https://www.materiel.net/cable-et-adaptateur-video/dexlan-cable-verrouillable-displayport-1-2-premium-2-m-136273.html because a customer used it on the AW 240hz monitor and he had no problem with it so I thought it would finally work, it doesn't.
I do not know what to do, I tested the 3 DP outputs @ 144 and 240hz and even the HDMI 120hz does not work, after a while, there will be a message "No signal input" then I'll have a black screen( I can still hear sound from.
I did not have this problem with my previous monitor, an acer XF240 144hz therefore I don't think my GPU is the issue.
Besides, I wonder how to be sure to find DP cables that support the resolution 1920x1080 @ 240hz, is there any official list somewhere?
If you have any ideas or tests that I can do to find the faulty component, I'd really appreciate your help.
UPDATE : I've used a GTX 760 instead of the R9 Fury and even though I can't set the refresh rate to 240hz for whatever reason, I've played for +2 hours with the DP cable @ 144hz so it means the GPU was actually the problem right ?