PG 348Q / top screen flickers

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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elric
Posts: 9
Joined: 18 Oct 2019, 04:11

PG 348Q / top screen flickers

Post by elric » 18 Oct 2019, 04:15

Hello,

I have an issue for a long time. Sometimes it feels like it's fixed and apparently not.

In a lot of games (not all of them) i have a weird flickers on the top of the screen.

it's mostly visible during loadings and menu but also in games.

In some games, no issued at all

I tried different settings :

Vsync on / off in control panel
capping FPS
Going to lower refresh rate - 95hz instead of 100hz..


But the issue seems persistant, I can reduce it but never fix it totally.

have someone found a fix or the best settings to manage with that?

Thanks

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jorimt
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Location: USA

Re: PG 348Q / top screen flickers

Post by jorimt » 18 Oct 2019, 13:15

If you're using G-SYNC, I believe it can be normal at really low refresh rates. This flicker is occasionally visible near the top of my display (XB271HU G-SYNC) on loading screen or in scenes with extremely low refresh/framerates with G-SYNC enabled, especially with certain background colors, patterns, or content.
(jorimt: /jor-uhm-tee/)
Author: Blur Busters "G-SYNC 101" Series

Displays: ASUS PG27AQN, LG 48CX VR: Beyond, Quest 3, Reverb G2, Index OS: Windows 11 Pro Case: Fractal Design Torrent PSU: Seasonic PRIME TX-1000 MB: ASUS Z790 Hero CPU: Intel i9-13900k w/Noctua NH-U12A GPU: GIGABYTE RTX 4090 GAMING OC RAM: 32GB G.SKILL Trident Z5 DDR5 6400MHz CL32 SSDs: 2TB WD_BLACK SN850 (OS), 4TB WD_BLACK SN850X (Games) Keyboards: Wooting 60HE, Logitech G915 TKL Mice: Razer Viper Mini SE, Razer Viper 8kHz Sound: Creative Sound Blaster Katana V2 (speakers/amp/DAC), AFUL Performer 8 (IEMs)

elric
Posts: 9
Joined: 18 Oct 2019, 04:11

Re: PG 348Q / top screen flickers

Post by elric » 18 Oct 2019, 13:25

Yes it's with Gsync but even at high FPS like above 60 to 100FPS the issues occurs

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jorimt
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Joined: 04 Nov 2016, 10:44
Location: USA

Re: PG 348Q / top screen flickers

Post by jorimt » 18 Oct 2019, 18:40

I just realized I responded to another user here nearly a year ago with the same monitor model, and the same issue:
viewtopic.php?f=5&p=35885

It may be model-specific, unfortunately.
(jorimt: /jor-uhm-tee/)
Author: Blur Busters "G-SYNC 101" Series

Displays: ASUS PG27AQN, LG 48CX VR: Beyond, Quest 3, Reverb G2, Index OS: Windows 11 Pro Case: Fractal Design Torrent PSU: Seasonic PRIME TX-1000 MB: ASUS Z790 Hero CPU: Intel i9-13900k w/Noctua NH-U12A GPU: GIGABYTE RTX 4090 GAMING OC RAM: 32GB G.SKILL Trident Z5 DDR5 6400MHz CL32 SSDs: 2TB WD_BLACK SN850 (OS), 4TB WD_BLACK SN850X (Games) Keyboards: Wooting 60HE, Logitech G915 TKL Mice: Razer Viper Mini SE, Razer Viper 8kHz Sound: Creative Sound Blaster Katana V2 (speakers/amp/DAC), AFUL Performer 8 (IEMs)

elric
Posts: 9
Joined: 18 Oct 2019, 04:11

Re: PG 348Q / top screen flickers

Post by elric » 20 Oct 2019, 05:14

Hm damn.

Well feels like the issue is less present if I do

No vsync
Fps cap @95 / 100hz

Vleeswolf
Posts: 37
Joined: 25 Aug 2017, 15:59

Re: PG 348Q / top screen flickers

Post by Vleeswolf » 30 Oct 2019, 14:14

Same screen here. Also this issue, but seldom during very low fps situations outside of gsync range. I once read a post by Chief here that explained the issue occurs due to brightness differences or such, I cannot reproduce. I would not invest any time trying to fix.

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