AW2725DF flicker - possibly DSC related?

[artisanenjoyer]

Hello guys, been reading this forum for many years intermittently but this is the first time I've had to make a post as I can't find anyone else discussing this issue.

Basically, my monitor came in the other day and it's beautiful except for one thing: it flickers slightly (most notably in dark scenes).

I tried to do my due dilligence and tested several settings/configurations to no avail:
-HDR off in windows
-HDR off in osd
-VRR on
-VRR off
-Lower brightness
-Lower color depth
-Tested another DP cable
-Tested another DP port
-Tested on PS5

Now, of all these things, only another DP port and PS5 reduced this flicker. In fact, on the PS5 I couldn't see any at all. Another DP port only reduced it. Then I realized that the PS5 only outputs 120Hz. So then I moved on to testing different refresh rates:
-360hz, flicker
-240hz, flicker
-144hz, no flicker

I had a hunch while I was testing at this point it was related to DSC but I didn't look up the bandwidth values it would activate at, and sure enough, above 144hz DSC activates.

So, I guess the evidence points to DSC causing my flicker in dark scenes, unless I'm missing something? I hope I am wrong, because I can't actually do anything about it if not.

[artisanenjoyer]

update: I don't think it is DSC related after all. I found the screen test option in the osd and its happening there, so it's either a "feature" of the monitor or faulty hardware. Will contact Dell tomorrow.

[Chief Blur Buster]

DSC does not do this type of flicker.

Something else is causing it, such as insufficient capacitoring of a PWM-driven backlight at low brightnesses.

[artisanenjoyer]

DSC does not do this type of flicker.

Something else is causing it, such as insufficient capacitoring of a PWM-driven backlight at low brightnesses.

Yes, it was a faulty unit. I received a new monitor on the 24th which does not have the issue.

Sorry for the late reply, had covid lol.

[thizito]

also love to warn you but
when in 240hz the monitor uses DSC off automatically even in DP.
so if it flickers.. xd

u can use a bunch of combinations in the OSD buttons until get service menu
when u have service menu
u have DSC ON OFF showing in normal menu