Custom Resolution Utility (CRU)

[ToastyX]

(08-21-2017 07:13 AM)aliquis Wrote:  Hello, i did what you suggested and used the reset all program after creating a backup. Indeed now the heavy flickering during freesync is back!

Here are CRU screenshots: [Image: http://imgur.com/a/wX2Xb]

in the screenshot you see the out of the box settings, i changed nothing( the screen now flickers during freesync) .

Now i think i can be more precise about what i did modify in the first place before i used reset all and what i thought and maybe after all fixed the flicker, i modified a custom resolution (in the bottom part of the screenshot) to 100hz (With appropriate pixel clock and h rate), note: i noticed that the other resolutions do indeed have a slightly lower v total of 1481 instead of the 1510 used in the single 99,981hz resolution (again, i changed nothing this time, these are the out of the box values and the screen is flickering severly)

I don't see anything strange about the timing parameters. Those are just the CVT-RB standard values for 3840x1440 @ 60 Hz (1481) and 100 Hz (1510). "LCD standard" returns the same values. "LCD native" always returns the 60 Hz timing parameters, so you can use that instead of changing the vertical total manually. I don't see why that would make a difference though. If using the 60 Hz timing parameters works around the problem, then either there's a design flaw with the monitor, or there's an issue with the way FreeSync is implemented by the GPU.