Mac Mini 2018 and LG 49WL95C-W 49-Inch Curved 32: 9 Ultrawide

I haven't heard of any fixes or seen any updates from apple to address the problem. I think it's just due to the nature of the monitor being 49 inches wide, that the OS has no support for that resolution at the moment. I was in the same boat in prior to buying the monitor, apples own Q&A stated that the Mac mini should support 5120x2880. When I bought the monitor, I was definitely surprised and bummed out that it was not true.

I remember reading somewhere the apple actually had an update for this monitor: LG 34BK95U-W UltraFine 34, a monitor that apple is also selling on their store website I believe. This monitor has a resolution capable of 5120 x 2880 at 34 inches. My guess that's where the "5120 x 2880" support is at that monitor size.

Cable wise, it didn't really matter. I bought various thunderbolt 3 cables, even the apple official one. No changes at all. So the cable is not a factor.

I purchased Samsung C49RG90 49inches ultrawide 32:9 monitor too. I've been tried many attempts regarding cables. I used DP to USB-C at a first time to Mac mini 2018 with intel HD graphics; however it did not work for target resolution 5120x1440. So I assumed that will caused by cable either GPU issues. Therefore I maintained my 3rd party DP to USB-C cable (4k@60Hz) and switch device to Macbook pro 15 inches 2016 but it did not work at all. After that I purchased Moshi cable that supports Thunderbolt 3 to DP and I connected to the macbook and it did work for 5120x1440 with low resolution mode (60Hz). However, the tech specs of Mac mini 2018 that supports 1 5k monitor by Thunderbolt3.

I guess this should be matter of gpu or Macos issues not the cable. I wish this will be reported and resolved by Apple tech team. I'm still debating that I should compose eGPU to my system.

looks like they did not fix it yet ((

i spent hours without any result to see "5k" on this monitor with my 2018 mac mini. Very disappointed!

i've installed Windows 10 using boot camp and it immedeitly have showed me 5k and it look way better on this device....

What you think should i return the monitor or wait apple will add 5k support for it? (((

Yep, works for me too as I am wanting to separate out the screen into thirds in any case for software dev. I had a brief go at disabling spaces and having everything as one big area, I.e. good if you want to have a single window span the whole screen, but it is not 100% like a single screen, and not what I wanted anyway.

Hopefully this issue will be properly solved with a macOS update at some point, but I am happy enough with my workaround anyway.

Thank you! Works for me as well, but i can't scale UI to make text bigger :(

in Display settings i see only resolutions now without UI scale option

Definitely good solution, but hope apple add this monitor in next update

I do not understand how you're getting that resolution. When I plug my USB-C thunderbolt cable *or* my USB-C to Display port I am not given any different resolutions. I'm still seeing 3840 x 1080. The closes resolution I see is 2560 x 720. I do not see 2560 x 1440. how are you getting that resolution?

I would like to at least try splitting the screen in half to get 2560 x 1440 for both, but that's not working for me ATM. Is there some trick to it?

can you explain what you did what you see, this did not work for me?

Can you please walk me through the steps for using the monitor as 2 monitors. I cannot get that to work. Are there specific cables to make this work? I have a USB-C to USB-C thunderbolt 3 and a Moshi USB-C to DP. I assumed that when I connected the USB-C to PBP half screen I would get an optional resolution of 2560 x 1440, but I do not. I still only see 3840 x 1080 option

Hi. I have a 2013 MacPro, and the LG49Wl95C, but I can't seem to figure out how to get it to 5k. There is only one display port, and two HDMI's. How did you get the MacPro to go to 5k?

I have the AMD D700 graphics card.

Thanks.

I was having the same problem with my Samsung C49RG9x + 2018 Mac mini, everything described already. The highest resolution it would go up to was 3840x1080, 100hz. I've tried all sorts of cables. I am about to try the expensive Moshi one Apple sells, then I give up.

If anyone is curious, I decided to update to the Catalina beta and unfortunately it actually gets worse from there. The 3840x1080 resolution is gone from Apple's default resolution list. Instead, you get "5120x1440" in at the top of the list. Select that or "Default for Display", and it actually sets your display to 2,560x720 then scales the UI down 50% to simulate that resolution. The result is a blurry mess. You have to use something like SwitchResX to get back to 3840x1080.

Bootcamp works without any issues. I also ran several 4k monitors (USBC to DP) prior to switching to this monitor on the integrated Intel graphics and performance was bad (due to the garbage integrated graphics) but had no functional issues driving the monitors. It's an OSX issue, not a hardware limitation.

If I can figure out how to do a EDID display override I will share it here.

I am hoping that the final 10.15 Catalina release will have a solution for this. I am able to see "5120x1440" in the most recent beta but it is not the best. Hopefully this will get addressed in the final release which is due to come out in the coming weeks.

I have the Lae 2013 trashcan with the AMDD700, which will drive 5k monitors. The problem with this LG monitor is that it only has a single DisplayPort input, and since its an ultra-wide screen that technically is two 2560x1440 monitors, the setup we are seeking may be a stretch. The two 1080 HDMI won't give us what we want either. It appears if the LG monitor has two DisplayPorts, it should work. However, LG does say that a single DP port with THEIR 5k cable should support it.

Perhaps we wait for Catalina 10.15 and see. I am running 10.14 now.

I just tried out a custom resolution in SwitchResX (after disabling SIP), grabbing the monitor info for my LG 49WL95C-W from my AMD driver on my Windows 10 machine. I did my best to translate that over. "Back porch" was computed from the totals for both horizontal and vertical. I chose "positive sync." for both because the (working) profile for 3840 x 1080 had them checked. The horizontal scan rate set itself when I saved at 88.860 after I entered in everything else. Alas, it did not work. If someone can spot how I entered the info incorrectly, please LMK. Thanks.

Edit: Also tried unchecking "Positive sync." for the vertical, presuming that this is "Timing Polarity" from the AMD specs. Also failed to activate. Drat.

I have screenshots of both the AMD display specs and the SwitchResX custom profile here:

https://photos.app.goo.gl/9eDLU8BBMtgp2ZQE7

I did almost the same thing (using two USB-C to Display Port cables), but I get a problem when placing a window with half the window on display 1 and the other half on display 2. This results in only having "half" of the window being displayed, the other half is "hidden" underneath the background image of the other screen. But when moving the window between the displays the full window is displayed.

Do you have the same issue?

I am using a Samsung 49" C49RG90.

Any News Guys?

I have used more than 10 different cables with no solution. Hardware is up to date. Catalina 10.15.1and it still doesn't work in 5K. Will Apple solve it? Without 5K this monitor makes no sense at all.

LG Support replied as follows:

The fact that both monitors have a defect I consider very excluded.

It worked before, as you wrote.

Probably you had installed an operating system between 10.14.2 beta and 10.15. so it all worked fine but before 10.14.2 and at 10.15. several problems occur in this context.

We would recommend him to install a system which is between the above mentioned systems.

Do you have a solution besides pip/pop mode and the artificial upscaled one?

Hi Alex, i won't upgrade my OS to 10.15 cause I'm using lot of 32-bit plugins...

What I'm using :

Razer core x

https://www.amazon.com/Razer-Core-Thunderbolt-External-Enclosure/dp/B07CQG2K5K/ref=sr_1_3?keywords=Razer+core+x&qid=1574179264&sr=8-3

Radeon Vega 64 8gb (used)

https://www.amazon.com/SAPPHIRE-DirectX-100410L-2048-Bit-CrossFireX/dp/B075TFPWTY/ref=sr_1_10?crid=2ZK74IJHUNIFN&keywords=msi+vega+64&qid=1574179323&sprefix=msi+vega%2Caps%2C308&sr=8-10

Last, a LG 49WL95C-W original 5k DP cable...

The razer core x will have a 0.5m thunderbolt 3 cable, but i think its to short for me, so i bought a 2m long cable (*40Gbps Supports 100W Charging)