Is it normal to see these horizontal lines?

Talk about NVIDIA G-SYNC, a variable refresh rate (VRR) technology. G-SYNC eliminates stutters, tearing, and reduces input lag. List of G-SYNC Monitors.
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fluidz
Posts: 13
Joined: 19 Jan 2018, 13:11

Is it normal to see these horizontal lines?

Post by fluidz » 13 Nov 2020, 09:59

I have edited and added horizontal lines to this image to make it appear how I see it.

Image

No it isn't screen tearing, Vsync is forced on globally in the Nvidia Control Panel, and I don't see this in games.

When I scroll up and down light/dark content on a high refresh rate screen, using the scroll wheel on my mouse, if scrolling skips multiple lines at a time, I see horizontal lines appear on screen. It mostly affects text. Text looks like is has a strikethrough. I have seen this on 2 different monitors, Acer x34a, acer xb271hu and I even saw them when I visited the pc store on a 144hz monitor there. The guy in the store claimed he couldn't see them. Switching overdrive doesn't make them go away. At 60hz I can't see them, but once I set the refresh rate higher they become visible.

When scrolling the Microsoft Xbox app I see these exact same lines, although as the Xbox app uses a dark theme these lines are dark in colour. They make scrolling very unpleasant. If I use the scroll bar on the side, hold left mouse button and drag it up and down, which uses smooth scrolling, the lines aren't visible. It seems that when scrolling and skipping many lines at a time, on dark/light colour content, triggers it.

It looks like this - I added the horizontal lines to reflect how I see it

Image

I held my iphone in front of my xb271hu screen and started scrolling the Xbox app, I could actually see these lines on the iphone screen in realtime, so I recorded a video, and yes I can still see them in the video when played back on my iphone, although they do not appear if i pause the video. I shared the video in two popular monitor subreddits and asked if anyone could see them in the video on on their high refresh monitor and nobody has replied.

Am I seeing things? Or am I just way to sensitive to this sort of thing? :o

https://www.youtube.com/watch?v=VWiQ8zMpI08

TTT
Posts: 164
Joined: 28 Jul 2018, 14:17

Re: Is it normal to see these horizontal lines?

Post by TTT » 15 Nov 2020, 10:11

It will just be the pixel reponse on the monitor catching up.

Slow that video to min speed and you can't see any lines, I think you are seeing lines moving it fast because the line of text or edge of a picture in the app/xbox store are horizontal so its just looks like a line cutting across further up/down the screen as you're moving it.

Also the monitors you mention are IPS and they have a slower response time than TN so it will probably be more prevalent.

The newer IPS monitors are supposed to have faster response times now but TN is probably still the fastest.

TTT
Posts: 164
Joined: 28 Jul 2018, 14:17

Re: Is it normal to see these horizontal lines?

Post by TTT » 18 Nov 2020, 08:37

I just got an IPS 240hz monitor and I'm pretty sure I'm seeing what you are describing.

It is ghosting the image on the screen, like I said above its not actually a line you are seeing its ghosting the text but moving quickly its cutting through the next line of text so it looks like a line cutting through it.

Now I've seen it, it is really annoying! Pretty sure my TN 240hz panel doesn't do it so I guess its an IPS response thing.

fluidz
Posts: 13
Joined: 19 Jan 2018, 13:11

Re: Is it normal to see these horizontal lines?

Post by fluidz » 18 Nov 2020, 23:24

TTT wrote:
18 Nov 2020, 08:37
I just got an IPS 240hz monitor and I'm pretty sure I'm seeing what you are describing.

It is ghosting the image on the screen, like I said above its not actually a line you are seeing its ghosting the text but moving quickly its cutting through the next line of text so it looks like a line cutting through it.

Now I've seen it, it is really annoying! Pretty sure my TN 240hz panel doesn't do it so I guess its an IPS response thing.
Thanks for putting my mind at ease, I really thought I was seeing things!

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