Questions & Answers for LG UltraFine 4K Display
42 Questions from the Community
macbook pro 2014 retina display with thunderbolt 2 to usbc external monitor connectivity
I have connectivity issues trying to use the above macbook pro to drive LG 4K ( lg27UK850) display with USBC ( not thunderbolt 3) without losing resolution . There are major issues with the thunderbolt 2 ports as no adaptors available with a thunderbolt 3-usbc female and thunderbolt 2 male. I would loose resolution if I use the HDMI port. Suggestions please?
- Asked by Frederik P
- Flag as inappropriate (macbook pro 2014 retina display with thunderbolt 2 to usbc external monitor connectivity)
Can you connect 2x LG UltrafIne 4k to the USB-C ports at the back of the lg ultrafine 5k display connected via Thunderbolt3 to MBP 2018?Answer
No, the USB-C ports at the back of the LG UltraFine 5K are for data only. They cannot carry video.
The Thunderbolt connection of the LG UltraFine 5K to the MBP can carry only two DisplayPort signals anyway and both DisplayPort signals are used by the LG UltraFine 5K (one signal for the left side of the display, and another for the right side of the display) to obtain a 5K 60 Hz resolution.
There exist USB to DisplayPort adapters. Research DisplayLink adapters for more information. They do not perform like a graphics card. They are not good for video playback or gaming. They might not work as well in macOS as they do in Windows.
- Answered by Joseph V from Fort Langley
- Flag as inappropriate Answer (Can you connect 2x LG UltrafIne 4k to the USB-C ports at the back of the lg ultrafine 5k display connected via Thunderbolt3 to MBP 2018?)
Is the LG UltraFine 4K display compatible with the new mac mini?
- Asked by James L from Wakefield
- Flag as inappropriate (Is the LG UltraFine 4K display compatible with the new mac mini?)
Can this be rotated into portrait?
- Asked by Jack G
- Flag as inappropriate (Can this be rotated into portrait?)
Yes. I use two on my 2017 MacBook Pro 15inch. One in portrait and the other in landscape. You just need a different mount; the mount provided only does landscape so you will need to VESA mount the display.
- Answered by Michael C from Dunbar
- Flag as inappropriate Answer (Can this be rotated into portrait?)
Can this be used as an extra monitor for an iMac Pro?
The 5K version of this monitor clearly specifies that the interface is Thunderbolt 3. This one only says USB-C. But non-thunderbolt monitors don't seem to work on the iMac Pro.
- Asked by Alexandre B from Bruichladdich
- Flag as inappropriate (Can this be used as an extra monitor for an iMac Pro?)
Is it possible to connect 3 of these without connecting all three directly into a 2017 macbook pro?
I need the extra usb c ports for everything else.
It would be ideal to connect all three into a hub and connect the hub to one of the four usb c ports.
- Asked by Christopher B from Sherman
- Flag as inappropriate (Is it possible to connect 3 of these without connecting all three directly into a 2017 macbook pro?)
Can two LG UltraFine 4k displays be connected to a MacBook Pro via the new Blackmagic eGPU?
I purchased the new Blackmagic eGPU which has two Thunderbolt 3 ports and one HDMI 2.0 port. One of the Thunderbolt 3 ports runs to my MacBook Pro, and the other Thunderbolt 3 port should be able to run to the LG display no problem.
Where the question lies is is it possible to connect a USB C display such as the LG UltraFine 4K to an HDMI 2.0 output using adapters or a USB-C to HDMI cable?
- Asked by Spencer G from Langley
- Flag as inappropriate (Can two LG UltraFine 4k displays be connected to a MacBook Pro via the new Blackmagic eGPU?)
Can I turn off the charging of the macbook from the monitor
Can I turn off the charging of the macbook from the monitor (when I already have a full charge of the battery), but at the same time that the monitor is connected and I could work with it.
- Asked by Sergey K
- Flag as inappropriate (Can I turn off the charging of the macbook from the monitor)
Would this work with the older 15" MacBook Pro Retinas with their thunderbolt 2 ports and my PC that has a GTX 980Ti STRIX GPU?
No answers yet
Can the monitor be connected to a Gateway windows based desktop computer?
- Asked by Patty H from Round Rock
- Flag as inappropriate (Can the monitor be connected to a Gateway windows based desktop computer?)
Can I use these with an iMac (Retina 5K, 27-inch, Late 2015 with AMD Radeon R9 M395X 4096 MB video card)? Is there a Thunderbolt-2 to USB-C adaptor
No answers yet
Will this display work with both a Windows PC and a Mac? Also, can you daisy-chain two monitors and have it work with both a Windows PC and Mac?
My personal computer is a 2014 MacBook Pro Retina and my work computer is a 2016 HP EliteBook with USB-C port. I'm hoping that since this display supports USB-C that I can use either my personal or work computer with it (and daisy-chain two monitors for dual-monitor functionality).
No answers yet
Will this monitor work via a USB-C-to-Displayport Cable?
I'm wondering if I can drive this monitor from a USB-C-to-DisplayPort Cable.
I am looking at the upcoming Thunderbolt 3 docking stations, and all of the products announced only have 2 Thunderbolt-3 ports on them. Most have either HDMI or Displayport ports as well, though. I'm obsessive about cables/mess, and only want to have one connection running into my 2016 MacBook Pro with Touchbar.
My thinking is that I can use a USB-C-to-DisplayPort cable into the monitor from the dock, as the specs show that the Displayport on the dock can do 4K video.
1st, Will this actually work? I'm assuming it will.
2nd, Will all of the Monitor controls still work? I love how this monitor has all the brightness/color setting controlled through system preferences, and I would want this functionality to work as well.
Has anyone tested either of these things?
For reference, I am looking at the Belkin Thunderbolt 3 Express Dock HD, and the Henge Docks Tethered Dock for MacBook Pro 2016 (Thunderbolt 3).
- Asked by James F from Rockford
- Flag as inappropriate (Will this monitor work via a USB-C-to-Displayport Cable?)
I just went through the same thing - and ended up returning the Belkin TB3 Express Dock. I have put my gigabit ethernet adapter and backup hard drive into the USBC ports on the monitor, and then one USB-C from the monitor into my MacBook Pro with Touchbar. I don't think it is quite as fast a network connection as I get when I plug the ethernet adapter directly into the McBP - but nice to have just one cable to disconnect and go.
I originally bought the Belkin TB3 dock to enable use of a lower cost 4k monitor - but then lots of reviews on problems with reawake after sleep, disconnect/reconnect cables to refresh display, etc. Decided to put the $350 from the belkin towards the nicer LG display and let it to the USB-C hubbing for me. Seems to be working out ok.
- Answered by Brad C from Princeton
- Flag as inappropriate Answer (Will this monitor work via a USB-C-to-Displayport Cable?)
Can I connect a Thunderbolt 1 hard drive to the display (and therefore to my 2017 Macbook) via the apple Thunderbolt 2 to 3 dongle?
- Asked by Cortney F P from Summerfield
- Flag as inappropriate (Can I connect a Thunderbolt 1 hard drive to the display (and therefore to my 2017 Macbook) via the apple Thunderbolt 2 to 3 dongle?)
No. The additional ports are USB-C, not Thunderbolt.
- Answered by Saul B from Pittsburgh
- Flag as inappropriate Answer (Can I connect a Thunderbolt 1 hard drive to the display (and therefore to my 2017 Macbook) via the apple Thunderbolt 2 to 3 dongle?)
Does this monitor work with windows computer as well? How do you switch if two devices are attached at the same time?
I'd like to attach both my 12-inch macbook and my windows-laptop (using the USB-C go display port adapter). Is that possible? How do I switch between the two devices if both are attached at the same time (I unterstand there are no buttons and switches on the monitor itself).