I also want to know update on this.

What about HiDPI support on MacOS? Is it possible? I can get 5120x1440 working on my 32:9 Samsung Odyssey G9 but I'd rather be able to select a scaled resolution that is HiDPI.

Hi, anyone had any luck to run 5120x1440p monitor (Samsung LC49RG90SSUXEN) using a Dell D6000 on full resolution? connecting that using a single DP cable is running only at 3840x1080. Do I need to sell that docking? What to buy instead?
OK no worries, looks like the DELL drivers are a bit outdated, I needed to download the latest v10.0 from this page and it was fine straight after I installed that.

Hello DigitalEagle, 5120x1440p100-p120 is beyond the capability (standard) of current chips we have in products, but is planned for next generation.

please add 5120x1440 100hz and/or 120hz.

Hi, I own MBP 2019 + DELL 6000dock + monitor with resolution of 5120x1440. Is there going to be an update for me or should I buy different dock? Is there any dock with DisplayLink that could solve this problem for me? I have to run the monitor directly from the MBP and it causes a lot of heat with dedicated graphics turned on. Thanks a Lot!

How to get it work at 5120*1440? My dock (Dell D6000) still limits at 3840*2160.

Philips 499P9H works with the new driver!!!
Only when waking up from sleep mode there is no sound anymore.

Please make support for 5120x1440

We need to support the u4919dw with 2 4k displays

Please add supports for 5120x1440@60Hz.
Thank you!

Yes please Add support for 5120x1440 resolution at 60 Hz

A basic Intel 630 supports 5120*1440@30Hz so DL-6950 should at least support 5120*1440@60Hz

See also here for hints at creating xorg.conf snippets for extreme multi head setup:

ArchWiki: Extreme Multihead
https://wiki.archlinux.org/index.php/Extreme_Multihead

See also:

xrandr fails to change virtual-screen size when required
https://gitlab.freedesktop.org/xorg/app/xrandr/issues/17

Study: Two Monitors or One Ultrawide (keenethics.com)
https://news.ycombinator.com/item?id=19595995

And possibly, via an idea from this link:
https://bbs.archlinux.org/viewtopic.php?id=180904

try something like the following sequence (untested, will test in a couple of weeks):
cvt 8960 3600 60
xrandr --newmode "8960x3600_60.00" 2804.25 8960 9752 10752 12544 3600 3603 3613 3726 -hsync +vsync
xrandr --addmode VIRTUAL1 "8960x3600_60.00"
# configure samsung to be 2 monitors, PBP (side by side) i.e. 2560x1440 resolution each
# now try the layout:
xrandr --output LVDS1 off --output DVI-I-1-1 --mode 2560x1440 --pos 0x580 --rate 60 --output DVI-I-2-2 --mode 2560x1440 --pos 2560x580 --rate 60 --output DP2 --mode 3840x2160 --pos 5120x0
# and if that does not work, try adding virtual output:
xrandr --output LVDS1 off --output VIRTUAL1 --mode "8960x3600_60.00" --output DVI-I-1-1 --mode 2560x1440 --pos 0x580 --rate 60 --output DVI-I-2-2 --mode 2560x1440 --pos 2560x580 --rate 60 --output DP2 --mode 3840x2160 --pos 5120x0
# and then hopefully disable VIRTUAL1, either with XFCE etc GUI, or cmd line:
xrandr --output VIRTUAL1 --off

See also:

xrandr fails to change virtual-screen size when required
https://gitlab.freedesktop.org/xorg/app/xrandr/issues/17

Study: Two Monitors or One Ultrawide (keenethics.com)
https://news.ycombinator.com/item?id=19595995

See also:

https://github.com/AdnanHodzic/displaylink-debian/issues/302

2 monitors: 5120x1440 plus 3840x2160 resolution / or better triple monitor support #302

Same problem with Samsung LC49RG90.

These monitors only support 60Hz refresh (and above) and not 30Hz, which is unfortunate.

For reference, DELL is aware of the limitations:
https://www.dell.com/support/article/au/en/aubsd1/sln314416/dell-u4919dw-system-requirements-and-supported-configuration?lang=en

A very sub-optimal solution is PIP/PBP, with two DP input cables from the dock (DELL D6000 here) to the monitor, but Xorg does not work well with 3 monitors, with one or two connected via the DisplayLink device in this way - a three monitor layout requires custom virtual "screen" section in xorg.conf (this file does not normally exist these days) and I have yet to figure out how to make it all hang together, if this is even possible; the problem e.g. with a second 4K monitor, is either a non-accessible area of the screen (which ends up black due to xorg's too small Screen), or on this older hardware (the reason I'm trying to configure this DELL dock in the first place), the maximum Screen dimensions is 8192x8192, so no go putting these monitors side by side, and problems with one on top. No win situation.