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I see that you have similar concerns as I do. If you were to get the 6K Dell monitor, you would be a reference candidate for me regarding the matte vs. glossy display :) I love my glossy screen from my 5K Dell & ASD and don't know how well I will like the matte display from the 6K Dell.
Just ordered one! I will write a mini-review on here once I get it set up and spend some time with it.
 
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Yes, it will switch with the built in KVM between a TB device and another device connected to the USB-C upstream when you switch inputs. I had mine connected to a U3818DW for a few years and it worked great. Both my MacBook and PC automatically connected to it when switching.
Yeah, I used this trick with the LG Ultrafine so I didn't have to plug/unplug the audio cable all the time. You can find little USB audio interfaces for around $10 on Amazon, you don't have to buy audiophile grade hardware to solve this problem. Even the $10 goobers are still better than what comes in most (non-Apple) PCs.
 
Ordering from Dell is like playing the stock market so I was waiting for a deal. But I'm in Canada, so we don't get the same offers as in the US.

Today I saw Dell Canada has a "SAVE20" coupon that gives 20% off "select monitors and accessories" today. This put me over the edge and I pulled the trigger on the U3224KB.

If you're a Canadian in the market for this beast, this is your chance to pick this up at a good price.

Total came to CAD $3,480 + 5% GST. Not bad considering a Pro Display XDR with Nano-texture glass and a stand would cost CAD $8,800!! More pixels for 40% of the price. Works for me. I'm a web developer, not a professional movie studio color-grader/editor, so the special attributes of the XDR are wasted on me. Plus this has what sounds like an excellent camera built in (which I will use frequently) where the Pro Display has none.

I'm excited and am looking forward to sharing my impressions when it lands next Wednesday!
 
System Information reports the resolution as 6144 x 3456, unlike a previous screenshot someone shared that showed it as 8K.
System Information.app does not report resolution or color depth of displays. It reports the size and color depth of the framebuffer. The framebuffer is scaled to the output resolution and color format which are not shown in System Information.app.

Use SwitchResX to check the output resolution.
Use AllRez to check output resolution and color format.

If you want to see 8K in System Information.app, then choose the 3840x2160 HiDPI mode. If that mode doesn't exist, try creating a scaled 7680x4320 mode in SwitchResX.

As someone else reported, it works at only 30Hz with my 2019 Intel MBP. My M1 Pro works at 60Hz as expected.
Which 2019 MacBook Pro? only the 16-inch can support DSC with 5300M or 5500M.
For 2020, the 13-inch with 4 Thunderbolt ports can support DSC (Ice Lake iGPU Intel Iris Plus Graphics).

AllRez should be able to list all the supported modes and tell you if the GPU supports DSC and if any modes include DSC.

If you have either of those, then try Catalina to see if it enables DSC.

If you have an Intel Mac with a GPU that supports DSC and the OS doesn't enable DSC, then a hack using OCLP, Lilu, and WhateverGreen might be able to make it work though I have not tested it.
 
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But I'm in Canada, so we don't get the same offers as in the US.

Same here in Australia. Dell have had a long-standing 27% off offer here that has recently concluded, so I’m waiting for something similarish to come back before I pull the trigger.

Unless they announce a model without the camera, I’d wait for that as it would be my ideal monitor.

Will give me a good excuse to buy a new Mac too, and finally replace my 2019 iMac.
 
Mine now shows as shipped, or more specifically as in transit to UPS. Looks like the estimated arrival of the 25th was accurate!
 
Which 2019 MacBook Pro? only the 16-inch can support DSC with 5300M or 5500M.
For 2020, the 13-inch with 4 Thunderbolt ports can support DSC (Ice Lake iGPU Intel Iris Plus Graphics).

AllRez should be able to list all the supported modes and tell you if the GPU supports DSC and if any modes include DSC.

If you have either of those, then try Catalina to see if it enables DSC.

If you have an Intel Mac with a GPU that supports DSC and the OS doesn't enable DSC, then a hack using OCLP, Lilu, and WhateverGreen might be able to make it work though I have not tested it.
Yeah, the 2019 16" Macbook Pro is *supposed* to support DSC, but there are many reports that Apple broke this for any Intel Mac in Big Sur and never fixed it.
 
Agree with this sentiment. Plus, realistically, Apple have absolutely zero incentive to fix this. The 2019 Macbook Pro is long gone and this monitor is a direct competitor to their own high end 32”.

Why on Earth would they bother at this point?

I’d love to be proved wrong but I’m not about to keep the Dell for the incredibly unlikely possibility of Apple fixing it.

It’s a great monitor, as long as you have compatible hardware. When work update my laptop, I imagine I’ll be ordering again 👍
@foo2 that "quick call" to apple support took me about an hour on Monday to describe everything. I called them up this morning to check the status, because they didn't proactively call me back. What did they say? "Engineering wants the customer to describe exactly why they think their display is broken." I did this already, in great detail on Monday. Additionally, it's not the display that's the issue here, it's macOS, which I was adamant about.

What's more? I kept getting interrupted by the support advisor, who would constantly ask if I had third party applications and profiles running on my Macbook Pro "because those can alter or affect this issue". Nevermind that this seems to be an issue closer to the kernel or a driver. This is consistent with my recent support experiences with Apple. They love to point the finger at anyone but themselves, and when it escalates to Engineering, they seem to do the same thing. No one there seems to actually be interested in solving problems unless there's a lot of bad PR/news around them.
 
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Sorry to hear that, but perhaps you got the ball rolling and apple will give a formal response.

Or they will just bury it. But at least you tried.
 
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Thanks @Lava Lamp Freak and @Supacon re audio interface.
Any recommendation for good quality interfaces that work well with both Mac & PC?
I do not have experience with USB audio interfaces - are those able to drive speakers or do they only provide line out & require further amplification?

Thanks @kitsunesoba , @CWallace and @tornado99 re ultrawide & resolution.
I like to not use fractional scaling, because it supposedly creates blurrier text & uses extra processing power. It feels like wasting the significant extra money spent to get a HiDPI monitor.
I would like to get a consistent text size between the built-in monitor & the external one, as I switch between them quite often, and would not like to resize text at the app level.

Another question for the Mac users out there - has anyone used the ethernet port & can report on the experience? As per “U2723QE, macOS support for Ethernet port?”, it should work after manually adding the network interface. I’m only going to be using the ethernet with my MacBook on the thunderbolt interface. The PC on HDMI or DP is a desktop and has its own network port.
 
Got my U3224KB in this evening, right on schedule. Got it set up on my VESA arm and hooked up and spent an hour or two using it.

Might have more thorough impressions tomorrow after I've used it for work, but so far it's been solid. Only hitch so far is that while my company laptop (M1 Pro MBP) has no issues driving it at 60hz, my personal iMac Pro can only muster full resolution at 30hz.

This might have something to do with DSC being broken on Intel under newer macOS. It's not a dealbreaker though, as I have an M1 Max MBP waiting in the wings to replace the iMac Pro depending on what's announced at WWDC (still within return window). I'll just have to live with 30hz for a couple of weeks outside of work hours.
 
Got my U3224KB in this evening, right on schedule. Got it set up on my VESA arm and hooked up and spent an hour or two using it.

Might have more thorough impressions tomorrow after I've used it for work, but so far it's been solid. Only hitch so far is that while my company laptop (M1 Pro MBP) has no issues driving it at 60hz, my personal iMac Pro can only muster full resolution at 30hz.

This might have something to do with DSC being broken on Intel under newer macOS. It's not a dealbreaker though, as I have an M1 Max MBP waiting in the wings to replace the iMac Pro depending on what's announced at WWDC (still within return window). I'll just have to live with 30hz for a couple of weeks outside of work hours.
iMac Pro has AMD Radeon Pro Vega 56 or 64 which don't support DSC. You need an eGPU if you want 6K60 from a non-Apple display.
iMac Pro is from 2017. Does it have Titan Ridge? I don't think so. Can it output HBR3 with Alpine Ridge? I don't know. I would like to see an ioreg and an AllRez for this computer with display.
 
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@joevt Ahh yeah that makes sense. Hadn't thought of the age of the GPU being an issue.

For ioreg and AllRez, do I need to do anything special? I've already dumped the output of AllRez without arguments to a text file, would it be the same for ioreg?
 
@joevt Ahh yeah that makes sense. Hadn't thought of the age of the GPU being an issue.

For ioreg and AllRez, do I need to do anything special? I've already dumped the output of AllRez without arguments to a text file, would it be the same for ioreg?
pcitree.sh might be preferable to ioreg since we just want to see the list of PCI devices to know which Thunderbolt controllers are being used.

ioreg -fliw0 > ioreg_all_iMacPro.txt can contain some info that you might not want to include.

This one will expand only PCI devices:
ioreg -fiw0 -c IOPCIDevice > ioreg_pci_iMacPro.txt
 
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Just watched this video. 100% guarantee this will wobble on my desk. There's a reason to pay the Apple taxes. You get what you pay for.

 
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100% guarantee this will wobble on my desk.
I've always thought it was odd that flat-panel TVs almost universally adopted the superior wide stand designs... even on small sizes (24", etc)... but monitor makers insist on these thin center post designs... even for large displays and ultrawides where a wobble of fractions of a degree translates to huge movements in pixel terms at the edges. 🤦‍♂️

GUEST_4f8b5b6b-5322-4215-a423-89c88159ce0a.jpg
 
Re: wobble, I know they don't work for everybody's situation but I strongly recommend a quality monitor arm. Not only do those eliminate wobble (depending on how solid your desk is), they free up a shocking amount of desk real estate and make it easier to fine-tune height and depth as needed.

For the past couple of years I've been using a clamp-mount HumanScale M/Flex M8.1 dual arm that I got off of eBay for a fraction of list price and it's extremely high quality and doesn't even flinch at the weight of a 27" iMac and U3224KB. The center post of this model lets you add additional arms later on if that becomes desirable, which is pretty cool.

pcitree.sh might be preferable to ioreg since we just want to see the list of PCI devices to know which Thunderbolt controllers are being used.

ioreg -fliw0 > ioreg_all_iMacPro.txt can contain some info that you might not want to include.

This one will expand only PCI devices:
ioreg -fiw0 -c IOPCIDevice > ioreg_pci_iMacPro.txt

Thanks, I'll see if I can grab that later on when the monitor is hooked up to my iMac.
 
^^^I have a VESA mount ASD and it wobbled on an arm. Only thing I could find that worked is a desk stand VESA. Which as I think about it would work for the Dell . . .
 
Has anyone found a way to get good discounts (20% ish), after the initial day release?
 
^^^I have a VESA mount ASD and it wobbled on an arm. Only thing I could find that worked is a desk stand VESA. Which as I think about it would work for the Dell . . .
I have two ASDs on regular clamp-style VESA arms. Neither wobble but my desk is a tank and the arms are kind of tight.
 
Yeah, sturdiness of both the desk and arms make a big difference. Desk style can make a difference too, for example my current L-desk is much more stable than the more typical desk it replaced even though both are the same brand, simply because the L-desk is cross-braced in a way that regular desks can't be.
 
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