HiDPI workaround
I wonder if "Better Dummy" (https://github.com/waydabber/BetterDummy) could help solve the HiDPI problem (more than 1920x1080 HiDPI on a 4K monitor).
Has anyone tried this? |
I have now tried the "BetterDummy" program and checked whether it can provide a solution for the missing HiDPI resolutions via DisplayLink.
The good news is: Yes, it is a woraround to get HiDPI representation via DisplayLink. :) My configuration:
Monitor # 1: connected via USB-C to display port adapter (working HiDPI @ 2560 x 1440) Monitor # 2: connected via Display-Link Dock "Kensington SD4780P" (no HiDPI out of the box) The Workaround for HiDPI on Monitor #2: 1. Install and start "BetterDummy" from https://github.com/waydabber/BetterDummy/releases 2. Create a dummy Display "16:9 (HD/4k/5k/6k) 3. In the display properties set the "Dummy Display" to:
4. Switch Resolution of Dummy to desired HiDPI resolution (eg. 2560 x 1440) using the BetterDummy Menu: "Manage dummies" --> "Set resolution" 5. Set your Display-Link Display in the display properties to:
6. Optional settings of BetterDummy:
--> Now you should have a 2560 x 1440 HiDPI @ 4k :) My LG HDR 4k Monitor via DisplayLink is now running @ 3840x2160/60Hz showing 2560x1440 in a crystal clear picture. This is not a straight forward solution, but now I have two external 4k monitors on my MacBook Air M1 that work with HiDPI to my fullest satisfaction. |
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I got this workaround to work. I use two identical LG 32UP550-W 4k displays. One is natively connected, the other one through DisplayLink. However I don't experience a crystal clear picture like you describe. It is a lot better than the blurry native MacOS option, but it is not even close to the crispness that the natively connected display has. Am I doing something wrong? Thanks! |
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[Edit: I noticed that changing the screen resolution with RDM does not work in conjunction with BetterDummy: When selecting a resolution marked as HiDPI with RDM, no HiDPI is sent to the monitor (the monitor then no longer runs at 4k)!] |
worls well on the 2020 m1 mac. At least now the display does not give you headaches. Guess Displaylink does not need to do anything to the feature request now as some one elses out of the box thinking has solved it.
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Hi
I also cannot get it work. It is blurry to me as well. @JanB, I wrote you a PM. Could you possibly helpt? Best regards. |
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Let's say I see it looks like with the new DisplayLink experimental mode Thank you very much and greetings. |
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A negative impact is that there's a small display latency when streaming. |
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