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Increasing display size while holding resolution constant necessarily decreases ppi — you need a 27” 5K or 32” 6K monitor to maintain a decent ppi.

Here’s a list of 24” “4K” monitors. Most have since been discontinued I think.
Exactly, I am in the market for a 27" 5k wide gamut but they do not seem to exist. Until then I would like to stick to my Dell that I still love
 
I have the Dell UP2414Q display as well. I can confirm that 4K @ 60Hz DOES NOT WORK on the Apple Silicon Macs. In fact, it was pretty much a problem on my 2016 and 2019 MBPs as well, but would work from time to time.

Connecting it to my new M1 Max MBP, it runs fine in SST (single stream/ DP1.1) mode, so we're limited to 4K at 30Hz.
And the HDMI port only supports up to 30Hz at 4K anyway. Apple does not like to support MST, multi stream mode for DisplayPort 1.2 and newer. So when set to DP 1.2 for MST, it just tells me there's no signal coming from the DisplayPort connector and goes into power saving mode. These old (my UP2414Q is 8 years old next month) 4K displays initially supported 4K @ 60Hz by sending dual 1920x2160 streams via the DP 1.2 MST transport protocol. Some of the newer 8K monitors are doing the same technique, which makes the Dell 8K monitor incompatible with Mac, BTW...

This is a nice little monitor that actually worked quite well on my 2013 Mac Pro (trashcan Mac), but has been problematic on any Macs since. Now seems to be dead to the Apple Silicon systems. I kept it around as an extra monitor for certain PC systems. But for connecting to a Mac, you really need a contemporary 4K+ monitor that supports single-stream DisplayPort signaling or Thunderbolt connectivity.

It seems this monitor has been problematic on any Macs that have Thunderbolt3+ sot starting with the 2016 MBP and iMac Pro. The trashcan Mac Pro and 2015 MBP with Thunderbolt 2, which still used the miniDP connectors, seem to support MST for single displays and will allow this monitor to run at 60Hz.

And no, unfortunately there ins't any way to just make it work. Other than to run it at 30Hz. And I'm finding that 30Hz is problematic for the M1 Max MBP... It causes too much lag or sync issues with the display buffer and the monitor will stutter or even hang here and there for a few seconds. I would consider the monitor usable if not for that.

I'd like another monitor like this to pair with my new M1 Max, but I'm holding off to see if Apple or lg release any new monitors with rumored new systems coming up this next year. I'd love to see a new UltraFine series that support 120Hz. Or an Apple ProDisplay that gives us 4K or 5K at 24"

To the OP, if you turn off DisplayPort 1.2 mode on the monitor menu, it should allow you to run at 30Hz. Or you can use a TB/USB-C to HDMI to drive the monitor without changing DisplayPort mode. You have to have the monitor up and running with an image on screen to access the menu and disable DP 1.2. So stupid this monitor does not allow menu access with no signal, only lets you change inputs.
ah, bad news. But I think 30hz is fine for photography (Lightroom really), right? If i remember correctly, prior to MBP 2015 I used at 30hz on a mac mini and had no complaints.
How do you connect it to your M1 MBP? With the USBC to MiniDP adapter i could not make it work (with or without DP1.2 - I use my old MBP to change the setting).
What is my best bet: USBC to MiniDP or USBC to HDMI?
Thanks
 
The Dell UP2715K I own seems to tick all the boxes.
It does if it was still being produced.... But I still think it could have connectivity issue with the new MBP.
Is there a reason why none seems interested in producing 27" 5k?
 
Is there a reason why none seems interested in producing 27" 5k?
The reason there are no "5K" monitors is presumably that there's virtually no demand for them outside of the (comparatively) small Mac user base, and monitor manufacturers cater to the demands/preferences of the PC crowd first.
 
ah, bad news. But I think 30hz is fine for photography (Lightroom really), right? If i remember correctly, prior to MBP 2015 I used at 30hz on a mac mini and had no complaints.
How do you connect it to your M1 MBP? With the USBC to MiniDP adapter i could not make it work (with or without DP1.2 - I use my old MBP to change the setting).
What is my best bet: USBC to MiniDP or USBC to HDMI?
Thanks
30Hz is just fine for a lot of things. Photography, text/documents, etc.. If you're doing a lot of panning/scrolling or anything like video, motion graphics, games.. you're going to have a bad time.

I can connect it to the MBP a couple ways. One is I have a USB-C to DisplayPort cable that works just fine with it. The other is using a DisplayPort to DisplayPort cable from the back of my TS3+ Thunderbolt Hub to the display. Or connect it with an HDMI cable from the Mac to the monitor since the new MBPs have HDMI again.

Either of those cables or adapters you mention should work just fine. I have a USB-C to DisplayPort adapter from Cable Matters that has worked on other displays, I have not tried it on the MBP with this monitor. The USB-C to DisplayPort cable is 2m in length, bought on Amazon, brand is 'uni' - had it for a few years. It will drive other 4K monitors at 60Hz, but of course the Dell is limited to 30Hz with the current state of MST support.

If you're going to buy something in the form of a cable or adapter, I would recommend a USB-C to DisplayPort (or Mini DisplayPort) so you're not adding extra connections in the chain. And you can pick either regular or mini to connect on the monitor side and leave it plugged in there so and then easily use whichever system connects. ...In a perfect world and all that.
 
The reason there are no "5K" monitors is presumably that there's virtually no demand for them outside of the (comparatively) small Mac user base, and monitor manufacturers cater to the demands/preferences of the PC crowd first.
That's what LG and others claim... And I don't get it. LG offered the Ultrafine 5K 27" in a PC variant for a while. Now discontinued and hard to find. It was expensive and based on the older generation of panel vs. the TB3 Mac offering. That Mac-centric offering having been through at least one update since its launch. IMO, the monitor segment of the industry has actually regressed over the past couple years. Fewer options and mostly focused on 4K. A big push on the high end for mini-LED and OLED tech and prices soaring to $4000 and higher. Low end of the market is $800 and under and the same mediocre offerings we've had for the past 8 years with barely any improvements or updates. Smaller 4K monitors like the Dell UP2414Q have mostly vanished from the market. I've kept mine around, even at 8 years old and its various quirks, because there are not many options out there like it. And the picture quality is still excellent and holds up well against current IPS offerings, really only getting bested by the new FALD/ mini-LED or OLED for way more money. If I'm going to spend that kind of money, I'm buying the Apple 6K XDR.
 
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There was never a PC variant of that monitor. There were monitors by other manufacturers which used the same panel, such as my Dell UP2715K. Is that what you mean?
I suppose I didn't mean that they made the exact monitor for the PC market. I was referring to the 27" LG 5K monitor with dual DP input. I don't recall the model number off the top of my head, set up a couple of them. It was quickly discontinued for who knows what reasons. Same as the others. Yes, I know of the Dell model and I know there were others around the same time -- I have an HP Z27q 5K, same deal with dual DP 1.2 inputs for full resolution. HP's newer generation (g3) of that monitor is now 4K. Not sure when they switched to 4K, I bought mine circa 2016. I think the only 5K monitor that LG offers right now, other than the Mac-centric Ultrafine 5K, is the 34" Ultrawide 34WK95U-W with 5120x2160 resolution.
 
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Hi guys, after trying with the Startech miniDP to USB-C adapter, I tried also with a Uni cable USB-C to DP but no luck (regardless of the DP 1.2 setting).
AppliedVisual, how could you make it work With that cable?
Shall I bother trying with a USB-C to HDMI cable?
thanks
 
Hi guys, after trying with the Startech miniDP to USB-C adapter, I tried also with a Uni cable USB-C to DP but no luck (regardless of the DP 1.2 setting).
AppliedVisual, how could you make it work With that cable?
Shall I bother trying with a USB-C to HDMI cable?
thanks
The USB-C to DP adapter and then DP to mini-DP cable into the monitor works. But I'm running it connected with the CalDigit TS3+ ThunderBolt dock's DisplayPort connector to the Mini DisplayPort on the monitor. Just connect the dock when I sit at my desk. Monitor looks great as always. It's only 30fps, but it is what it is... I'll replace it if Apple comes through on those rumored new displays.

I don't know anything more than that, I can't say there's any special effort to make it work. It just works. No way apparently to make it work at 60Hz via DP 1.2/MST setting.
 
Pleased to report that with the HDMI to USB-C cable it works. No clue why DP to USBC does not work.
That's good you have it working. USB-C to DP should work too but maybe there's some setting amiss or not clearing. Did you try a factory reset on the display settings?
 
No, i did not try that as I don’t feel like calibrating it again
 
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