SOLVED: Old NEC 30" display weird split screen with MBP M3

[hybra]

My old 30" NEC display is working fine with my 2012 MacMini via MiniDisplayPort adapter to DVI, at 2560x1600.

I got a new M3 MBP, and it shows a strange issue, using two different brand USBC-to-DVI adapters, the MBP output is split in three columns, the center one is correct, but the lateral ones are swapped, meaning the left part of the screen is to the right and viceversa (see attached pic).

I spoke to the Apple support but the person at the phone had no idea and told me to visit the Genius bar.
Any idea what is happening here? I tried two different adapter brands because one may not have been compatible, but the second one displays the same behavior. And the fact that the NEC display works with the same cable and the MacMini with Catalina demonstrates it's not a display/cable issue.

Monitor driver in Sonoma? What else? Messing with the OSD of the NEC didn't help. I wouldn't like to cash out another 1k+ for a new display, since this is still working pretty fine after 15 years.

 

[kitKAC]

The adapters that you've already tried, do they support Dual Link DVI output?

 

[hybra]

The adapters that you've already tried, do they support Dual Link DVI output?

yes, both are dual link - both same features, different brand (Startech, Club3D), same issue. I get the max res, only with this weird Pacman-tunnel effect, moving mouse from center column to the right it appears on the left column and vice versa. Just tried to reverse the cable direction, no changes.

 

[Bigwaff]

There is another thread discussing the same issue w/ M3 and Dual Link DVI output w/ 30" Apple Cinema Display. No resolution found yet.

External Display split into 3 sections on new M3 Max MBP

Got my new MBP yesterday and have come upon a very strange issue. Per the picture here, my display is split into 3 sections. The right and left quarters of the display are flipped. Running 30"ACD through a club3d USB-C to DL-DVI adapter. This setup has worked flawlessly with my 2018 MBP and for...

forums.macrumors.com

 

[Silencio]

Is that an NEC PA301W? Have you tried using a USB-C to DisplayPort cable instead of DVI?

 

[hybra]

Is that an NEC PA301W? Have you tried using a USB-C to DisplayPort cable instead of DVI?

No, it’s an LCD3090wqxi model. I actually solved yesterday with your same suggestion before even reading it but thanks anyway. I solved switching from the Usb-C/DVI adapter to a USB-C/MiniDisplayPort one + Apple’s MiniDisplayPort&USB/DVI.

 

[classiccat]

No, it’s an LCD3090wqxi model. I actually solved yesterday with your same suggestion before even reading it but thanks anyway. I solved switching from the Usb-C/DVI adapter to a USB-C/MiniDisplayPort one + Apple’s MiniDisplayPort&USB/DVI.

Which brand adapters would you recommend?