AW2518HF Response Time Settings

[friedriz]

I received my monitor yesterday and did the ufo ghosting test. I noticed there was a yellow/green trail behind the tip of the ufo:

https://www.youtube.com/watch?v=XaBFMIlBnRI

After doing some research, I've seen people get different results, even inverse ghosting, when the response time setting is changed. However, all three settings (normal, fast, very fast) give me the same result on my monitor. Is there anything wrong with my monitor? I just want to make sure this monitor is all good while I'm still within my refund period,

[Q83Ia7ta]

Make sure free-sync is off. Check at monitors OSD for sure.

[friedriz]

I've tried freesync on and off, same thing. What am I supposed to look for in the OSD?

[MatrixQW]

If you have inverse ghosting (white trail of light behind cursor and text) FreeSync solves it. The user Andrelip posted some videos using LCD reduced mode to solve the inverse ghosting too.

What you see is "normal", there is nothing wrong with your monitor.
Usually the setting that reduces most of the ghosting is 'Contrast'. On my monitor (VG258QR) I use brightness 50 and contrast 40, if I increase contrast to 41 I notice how the ufo gets a bit worse.

Leave https://www.testufo.com/ghosting running, set overdrive to 'fast', set brigthness to 50% just as a start point then you can increase it, change contrast one by one and look close and carefully at the ufo for any visual diferences even if they are small, especially the top dark area of ufos.

[friedriz]

If you have inverse ghosting (white trail of light behind cursor and text) FreeSync solves it. The user Andrelip posted some videos using LCD reduced mode to solve the inverse ghosting too.

What you see is "normal", there is nothing wrong with your monitor.
Usually the setting that reduces most of the ghosting is 'Contrast'. On my monitor (VG258QR) I use brightness 50 and contrast 40, if I increase contrast to 41 I notice how the ufo gets a bit worse.

Leave https://www.testufo.com/ghosting running, set overdrive to 'fast', set brigthness to 50% just as a start point then you can increase it, change contrast one by one and look close and carefully at the ufo for any visual diferences even if they are small, especially the top dark area of ufos.

Thanks, I lowered my contrast to 70 and the trail is almost entirely gone (biggest difference is from 75 to 74 and 71 to 70), so I don't think ghosting is an issue anymore.

I did some further testing to see how the trail differed when switching through response time settings on the cyan strips:

60 hz: noticeable difference in all 3 strips (could see some of that white trail on "very fast")
144 hz: only difference in the bottom strip (very minor)
240 hz: no difference at all

On 240 hz, changing the settings does absolutely nothing, so I actually never see inverse ghosting. My question is whether I SHOULD BE seeing inverse ghosting when I set it to "very fast".

[MatrixQW]

You shouldn't but usually at maximum overdrive it creates artifacts on most monitors. If you have none you are in luck. I'm am lucky too.
I'm guessing you have FreeSync 'on', just as an experiment turn it 'off' and turn monitor 'off' and 'on'.

[Q83Ia7ta]

I hope you don't use other modes than 240hz because they add additional input lag in most 240hz monitors.

[friedriz]

You shouldn't but usually at maximum overdrive it creates artifacts on most monitors. If you have none you are in luck. I'm am lucky too.
I'm guessing you have FreeSync 'on', just as an experiment turn it 'off' and turn monitor 'off' and 'on'.

For some reason, Freesync makes no difference either for me