Dell U4919DW / MacBook pro 5k issue

Dell did their work to their (in my opinion, sloppy) standards. The vast majority of their users do not use the EDID information, and are using these displays without issue.

Apple did their work to their (much more exacting) standards.

Neither will accept blame for this. That is why, if this is the problem, it is so vexing.

Some people are speculating that this issue could be resolved in 10.14.2. See this thread...

https://www.reddit.com/r/ultrawidemasterrace/comments/9p4vx8/help_lg_34wk95u_mac book_pro_2018/

Since the beta version has been released, it may be worth downloading that and trying the monitor again.

Yes, it seems that way.

That monitor looks great too... I love the inclusion of the pop up web cam. That's one thing I was looking at getting for this .... but this monitor from Phillips would negate the need for a webcam!

Not that I ever use the webcam now anyway, but it would make for making Facetime calls much easier I guess.

Looks like the final build of 10.14.2 was released. Has anyone updated today? Any difference? Also this thread says there are some external display fixes, but not sure exactly what that means.

https://www.macrumors.com/2018/12/05/macos-10-14-2-released/

Update: 10.14.2 (non beta release) didn't resolve any issues.

I decided just to buy a USB-C hub that supports dual 4k monitors over display port and run PBP. The hub supposedly supports 5k over dual display port so that may be an option.

I'm not happy I had to invest another $200 for a hub to accomplish this, but If all works well, I can still accomplish everything with a single cable hookup. For those that paid full retail price from Dell, it was already reduced $350 and I got that refunded. The hub is being delivered tomorrow and I'll play around with it and post findings.

So - current update on my situation.

After waiting about a week for a senior Apple engineer, I was contact and told that I should try the 'Legacy Platform setting on the monitor from the manual.

https://downloads.dell.com/Manuals/all-products/esuprt_display_projector/esuprt_Display/dell-u4919dw-monitor_User's-Guide_en-us.pdf

Page 75.

I did suggest that I had tried every option possible on the Monitor, including this - but I would still entertain the engineer and do as requested.

As imagined, it had not impact whats so ever so I then further explained that even if that setting did have an impact, it would only change the setting for HDMI which in any case, the Mac Mini doesn't support the full resolution of 5120x1440 so it was a pointless exercise. My comments have been passed back again .... so I await from Apple again.

I've now had contact from a EMEA Resolution Expert from Dell who at this stage is also stumped as they do not have any Apple hardware capable of this resolution to actually test the monitor with!!

So we are still back to square one. Still not real support for 5120x1440 from Apple or Dell - both are pointing the finger at each other.

I'll see what happens this week .... but my patience are starting to wear thin.

Thanks MrADeveci for keeping us updated on your progress. My monitor hasn't even shipped yet (looks like it's taking a month before it even ships). I'm considering canceling the order if nothing is resolved soon. I'm encouraged to hear that Dell is still involved in troubleshooting, hopefully they'll see the issue through to the end.

It did not work in High Sierra either.

iMac pro has Vega 56 or Vega 64, dedicated GPU. Macbook Pro and Mac Mini have Intel Iris iGPU. On my Windows 10, U4919DW first showed up, after initial setup, as 5120x1440@30Hz. After Windows Update installed all drivers and updates, a restart, it showed as 5120x1440@60Hz.

This is the latest response from Dell :

Hi Ahmet,

The latest update from our Product Support team is that they have contacted Apple in regards to the issue but have yet to receive a response.

The tested a non Apple Windows 10 system and were able to output the required resolution so the issue seems to be specific to the Mac Mini and Mac Book systems.

Regards,

Tanweer Mohammed

____________________________________

I've chased up the Apple support team twice now .... still no reply.

Been fighting with this for a few days and the workaround is ok until Apple updates macOS to include this new resolution. I was having trouble with my 2014 Mini, so I bought a new Mini, but still had the problems so I've reverted to my old machine for now. I've got 2 HDMI-MiniDP 4k cables and running the display set to PBP, and set the preferences in macOS to "Screens don't have separate spaces." Looks great, have full resolution, and it's all one workspace.

I can live with this arrangement, but what's killing me is the color. I've hardware calibrated each side (since the OS thinks there's two monitors), but no matter what I do, I have a line down the middle of the screen with different colors on each half. Even using the same color profile on each side doesn't match up. Any suggestions to get them to behave?

I have been spending days/nights with MacBook Pro (13-inch, 2017, Four Thunderbolt 3 Ports) to get it running with a single usb-c cable at full screen 5120x2880, no luck as everybody else.

I just give up and have following solution that works for me;

Left USB-c to Dell USB-c

Left USB-c with HDMI adapter to Dell HDMI

PBP on

I keep MacBook lid open so I have like communication screen over Skype, iMessage etc. and can still use keyboard and touch pad without extra stuff on my table.

See the overview picture + arrangement ss and let me know if you have any question or suggestion.

Samsung have also announced the CRG9 monitor with the same 5120 x 1440 resolution.

I'm so disappointed with the support from both Apple and Dell - I've decided to arrange returns of both units. I've spent over £3K on hardware that simply doesn't work as advertised.

For those that are using the solution of disabling the separate spaces option on Mission Control and have different color variations between the middle, I finally got this display link adapter to work and and there’s no color difference. The only complaint is the top menu bar doesn’t span both monitors and the control dock isn’t centered.

https://www.amazon.com/gp/aw/d/B07DX8SVBK?psc=1&ref=yo_pop_mb_pd_title

One more customer looking forward upgrading to a Mac Mini + U4919DW.

I'll follow this thread and, needless to say, I won't be buying anything until this problem is solved.

Having to use the screen splitted in two or an eGPU is ridiculous and shouldn't be considered a valid solution whatsoever.

The problem is in Apple's Intel Graphic drivers and need to work this out along with Intel. Until they'll release and updated driver, there won't be a solution.

Next to the my message on 30/12, today I had a friend who had MacBook Pro 15" from 2015 and we tried his laptop via HDMI only. Guess what, it worked perfectly as single monitor at full resolution.

He is a lot more technical than me and he confirmed already it will not work with "Intel Iris Plus Graphics 650 1536 MB" on MacBook Pro (13-inch, 2017, Four Thunderbolt 3 Ports). When I said it is working on bootcamp on the same laptop, he said it is virtual display driver or whatsoever - it was just technical language, I did not understand at all.

As outcome, I gave up for hoping apple to fix this on 13" MacBook Pro's.