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Question very subtle "rippling" on new display (DisplayPort, 100Hz)

Turbonium

Platinum Member
I just got an Asus BE248CFN (upgraded from an Asus PA248QV).

Running off RTX 4070 FE, with DP at 100 Hz.

I'm getting some very subtle "rippling" on the image, and it's particularly noticeable with certain blocks of colour, especially when looking at it up close (though it may just be my noticing it easier... I can't notice it, for example, when typing text on a white background like on this forum).

By rippling, I mean if you look close, it's like there's a "flow" of water going through the image, very subtle. The image is more than usable, but less than ideal.

I tried changing out the DP cable, from the one I had before, to the one that comes with the display. It didn't solve anything.

I had no issues with any rippling with the prior PA248QV display (running at 75Hz and the same/initial cable, and same GPU and DP port). Is this some sort of problem with interference, or could it be something worse, like a defective panel? And how can I troubleshoot most effectively?

Other details that may matter:
- HDR is off
- Brightness is cranked up, and contrast sort of is too. Power saving stuff is off. Dynamic dimming or whatever is off.
- I have a secondary Dell display running off the same GPU (neighbouring DP port) at 60 Hz.
- I'm running quite a lot of cabling, including the DP cable for the primary panel that's giving me issues, through the cable management slot on a monitor, so there's a lot of cables, power and signal, bunched up close together, if it matters.
 
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Note: clarification that the rippling seems to only show up at 100 Hz. Using the same panel and cable and everything, but at 75 Hz or lower, the rippling goes away.

Any thoughts on what I should do at this point? I'm not sure if this points to a panel defect, or something else.
 
Did you figure out the issue? I noticed they released a firmware update for the monitor in Sep 2025. Did you try with this new firmware to see if you still have the issue?
 
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