Happy birthday to the work commencing to provide 2560x1440 HiDPI support. Must be extremely complicated given the fact that it is taking so long to provide the capability. Maybe best to open source and get a community to support the code.

Yet a year later, now at v1.7.1, still no 2560x1440 retina HiDPI (4k). I do agree with other comments in this section: 1440 is a standard now. Native resolution looks tiny, and 1920x1080 HiDPI looks huge and prevents the purpose of getting 4k monitors to being with: getting more on the screen.

I have spent countless hours trying to make it work with other software such as RDM, BetterDisplay, etc... when really, it should be a feature. It's almost a bug for not being there by now.

We're not asking for HDR or for 8K @ 60Hz here; we're just looking for a simple resolution scale!

I have DisplayLink 1.6.1 and 1440p on a 4k screen is still only available as a non-retina low-res option. I can get a noticeably better image using BetterDisplay (formerly BetterDummy) + Mirroring, but it's still blurry. If I use BetterDisplay + Streaming, it's a bit sharper, but the display performance goes down and it's still not nearly as crisp as a native 1440p high-res option.

@Maciej Ratajczak I think the answer is that Displaylink can not do it. The last response here was the update that it would be in 1.5 Beta 2.

Ok, so it's two years now. I just got my Dell D6000 and can't use 4K res scaled to 2560 × 1440. Looks like I have to give it back to the store. This is insane.

This is critical, please fix the product

We just managed 9 months post when this was reported as started. I guess its a complete rewrite to take this long. Maybe it will see a birthday in another 3 months. I'd suggest that you open source the code and let the community take it on and simply stay with doing the hardware. I'm sure there are some talented people out there that could deliver changes faster.

Want to add my frustration here as well, I recently bought a full setup around my work mbp M1 Pro including two 4k monitors, only to find out HiDPI is supported either for the full 4k resolution or 1080p. I do get an option for scaled 2k/1440p resolution, but the text is so blurry it's absolutely useless. Since it's a work laptop, I'm not even allowed to use external software like BetterDummy. Now I'm sitting with a $3500 wfh setup stuck with this absolute shit resolution on my monitors.

This is so annoying, 2k is a standard now, fix your damn product

We are about to hit 6 months since the work to deliver the request started.....

Pediction is that scaled HiDPI is not coming to displaylink as its been more than half a year since this page said it would be provided next release. That was a couple of releases ago. Best answer on 2020 M1 is to use betterdummy as that largely solves the issue.

Version 1.6 is now available. And the resolutions 2560x1440" is not yet available" option available for 4K resolution. Do you have any predictions?

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Better dummy works flawlessly on my 2020 M1 on a 4k display. As clear as a direct connection. With native displaylink on 4k everything that is scaled is blurry. Sounds like some thing with your better dummy configuration.

They told me they don't ignore this forum and that they are aware of the problem.

I don't believe that it is technically that complicated to fix. When I connected my Dell D6000 dock to my Windows PC, everything worked flawlessly on every possible resolution I changed it to.

My guess is that DisplayLink is willing to fix it, but that they need Apple to make this possible. Apple is not incentivised to care, since their customers will buy Apple products anyway.

The workaround via BetterDummy unfortunately doesn't give a workable solution. Like Philippe says (17 dec), it's still blurry.

my guess is that displaylink ignores this forum. Last response was 4 months ago and the release delivered nothing.

On other forums, progress is being made on adding more HiDPI resolutions on M1. I'll keep you posted when I learn more, but here's some exciting links:

https://forums.macrumors.com/threads.../post-30712633

https://github.com/waydabber/BetterDummy/

Disclaimer: I don't have any DisplayLink product to test it on.

Yeah, I have a 1440p option available on the 1.5 Beta, but it's only low-res. So it's not really an option. Frustrating that my 250$ dock comes with software that doesn't even support such basic features..

2550x1440 is one of the most widely used resolution on Macs connecting to 27-32 inch monitors and is an ideal balance between the very large 108p and small 4k resolution.

The low resolution mode is not a workable solution unfortunately and the better dummy app is still very blurry so doesn't offer a very nice alternative.

I am so disappointed after recently purchasing a wavlink dual 4k hub.
It's of no use to me and I'm in a country that will cost just about the same to send it back. So I have no alternative than to use it as a paper weight for now.

Please could the option for 2550x1440 HidDPi mode be made available.