Blur Busters Forums

On non native resolutions,acer 390hz is a beast.
it can deliver anything you want..
best way to look at it is like this..

depending on your system you can adjust resolution and hz..

example1

you are cpu bottlenecked, go for higher resolution
3840x2160 140hz 120hz 100hz(choose hz matching your max fps)
3840x1440 230hz 220 210 etc (max hz=max fps)
3840x1200 240hz 230 220 etc (max hz=max fps)
2560x2160 185hz 180hz 175hz(max hz=max fps)
2560x1440 300hz 280hz 260hz(max hz=max fps

example2

gpu bottlenecked,go for lower resolutions
actually native 1080p is still cpu bound

so stay native or go bellow
960x540 400hz
480x270 400hz
or first person shooters popular like
1024x768,800x600 400hz etc..

So as you can c,pretty much beast..

so here comes the actual question..
every single resolution is ok especialy lower 1s

on higher 1s there is an issue,bcs every single resolution
that i just described works flawlessly without Freesync Premium

as soon as i turn freesync premium on,bugginess acure
like image retention is stronk in this 1
sometimes it will just freeze like you can not even enter the menu etc..

so is it bcs max pixel clock?
or is it hard coded parametars and works only bettwen those?
or wat it is it?

4k res will work flawlessly other not so much..

It's quite possible that there's a inversion algorithm bug with the FreeSync mode on this model.

Most QA test only using GPU scaling, rather than monitor scaling, and that monitor scaling might have a bugged inversion algorithm.

Does your model have a firmware upgrade?

Image retentation on LCD = usually inversion algorithm related
viewtopic.php?f=7&t=7539

Chief Blur Buster wrote: ↑

13 Jan 2023, 00:58

It's quite possible that there's a inversion algorithm bug with the FreeSync mode on this model.

Most QA test only using GPU scaling, rather than monitor scaling, and that monitor scaling might have a bugged inversion algorithm.

Does your model have a firmware upgrade?

Image retentation on LCD = usually inversion algorithm related
viewtopic.php?f=7&t=7539

All image retention is fixable in 30sec with watching any 4k video full screen per your advice Chief!

sorry for late response..we are similar age so you know..sometimes we forget things

there is no software update curently..

and you can prrety much avoid retention
if you are in 6-8-10 bit timings

as soon as you go beyond with totals..
and drop into automatic conversion into reduce yccbr retention is there..

so 20-30hz bellow max on desired res,
and you are ok..

example 4k 144 freesync retention is there
120hz and its all good
1440p 300hz its there,270-280hz and you are good 2 go.

I have this issue with my AOC AOC2710. If Freesync or G-sync is enabled, pixels with high contrast between each other develop temporary image retention. For Nvidia GPUs, I can disable v-sync and G-sync in the Nvidia control panel, or in the geforce experience app.

There's a bug with AMD's freesync and some monitors. Disabling it in the Adrenalin app does not disable it on the monitor. The V. Frequency on the monitor's OSD shows "Freesync" instead of the refresh rate.

You can set your Display Port version to 1.1 within the monitor's OSD, but this reduces your maximum refresh rate at higher resolutions. The alternative is to disable Freesync support with Custom Resolution Utility.

- Select your monitor, click "Edit..."
- Uncheck "Include if slot available" under the Range Limits group.
https://i.imgur.com/g1iAy9C.png

I found this info in this thread on AMD's forums.
https://community.amd.com/t5/pc-graphic ... rue#M17043