• 1.0 out of 5 stars

    Issues with LG monitor sound and brightness controls

    I purchased an LG 27UK850-W 27" 4K UHD IPS Monitor with HDR10 with USB Type-C Connectivity and FreeSync (2018) as recommended by Apple website. I connected the monitor using the UCB-C cable provided by LG.


    1) You cannot control the LG monitor sound output using the up and down keyboard keys.

    2) You cannot control the LG monitor brightness using the up and down brightness keys.

    Apple claims LG monitors are FULLY compatible with its products. This is incorrect and should be rectified in the description on the website.

    After placing a call to Apple Support, I was told that the USB-C port does not provide keyboard control for the LG monitor sound and brightness and I need to use the monitor HDMI port and a USB-C-to-HDMI cable converter. This is totally ridiculous, what is then the point of having a USB-C connection?

    Apple needs to review its website and describe in detail the incompatibilities with LG monitors.

  • 2.0 out of 5 stars

    I regret having bought this monitor

    I wanted to have a good monitor to go with my newly bought MacBook Pro. So I bought this LG4K Display monitor. Now I have used it for more than 3 months and I regret having bought this product.
    The biggest problem with the Display is that it is "Un-Apple". The screen, the sound are all good, but not "Apple-good". I still have my 24-in all-in-one iMac from 8 years ago, and I can tell you that I prefer to watch a movie on that over the LG Display.
    It doesn't have ambient light sensor so I need to adjust down the brightness every evening, manually.
    It only works on Apple machines and I can't use it with my other devices.
    At this price range, I DON'T recommend it.

    1 of 3 people found this useful

  • 5.0 out of 5 stars

    LG UltraFine 4K Display

    Plug and play. I plugged the display into the power outlet, plugged the USB C connector into my MacBook Pro and instantly was viewing my desktop on the LG display and my existing Cinema Display. The hardest part was finding the LG Screen Manager app. Don't go directly to the LG website, but do a search in Safari for "LG Screen Manager" and find the correct page that way.

    Beautiful display!

  • 1.0 out of 5 stars

    No comparison to Apple Thunderbolt Display

    I'm writing this as a web designer who was looking for a comparable replacement for an Apple Thunderbolt display. If that sounds like you, don't buy this display! By comparison with the Thunderbolt — it's tiny, doesn't have a camera and isn't at all good looking (it looks like PC gear from the 90's). You already know that the only ports are USB-C, and that's every bit as annoying as you imagine it will be —they're not only a giant pain to convert, but there's only one port that connects to your Mac and delivers power. The other ports are slow enough to noticeably impact performance, so you'll want to connect directly to your Mac... meaning more cable/converting nightmares. Worse still, the single powered cable struggles to handle everything at once if you're doing more than just browsing the web — I experienced mouse/bluetooth connections slowing to an unusable speed when the Mac was handling tasks like a video call. Basically the display drains the life out of your Mac's performance. In summary, this is nowhere near the plug-and-play quality of Apple gear.

    3 of 3 people found this useful

  • 5.0 out of 5 stars

    The optimal size.

    The optimal size. Minimalism. Excellent image. Price is hight. But the Porsche is expensive too...

    2 of 3 people found this useful

  • 5.0 out of 5 stars

    Works with PC and Mac

    Bought this display as I wanted to connect it with my new HP Elitebook (which has UsB-C) and the macbook pro. It works beautifully with both the machines and powers them when used. I wanted to buy another display but looks like there is no usb-c hub to connect multiple monitors to a single usb-c. Anyways outstanding display content and looks amazing-Appleish!

    4 of 4 people found this useful

  • 5.0 out of 5 stars

    Absolutely love it

    It works seamlessly with my 2016 MacBook Pro with touch bar. Would recommend it to anyone looking for a High quality monitor!

    3 of 4 people found this useful

  • 2.0 out of 5 stars

    I wish that I hadn't ignored low reviews of this

    I saw the reviews mentioning fairly consistent problems with this display, and I ignored them. I wish I hadn't.

    In fairness, this display has the best image quality I've ever seen. But it stopped working completely about 10 weeks after I bought it. It just gives me a blank screen, and no longer charges my 2016 MacBook. I tried powering everything off and on. I tried a new USB-C cable. I tried the MacBook with another display that I have access to, and that worked fine. Nothings helps the LG display come back on, though.

    Adding insult to injury: I knew in advance that this display didn't have a camera, but come on. It even has a little dimple for one in the top front center of the enclosure, which I guess they reused the design for from another model. A display that costs this much and was supposedly designed to work with Apple products should have a camera.

    Also, Apple cannot help with this product. An Apple representative apologetically referred me to LG. LG did send me a shipping label to return the display for servicing, but their customer service is nowhere near as good as Apple's.

    I bought this display because the array of other displays out there is so bewildering, and I thought that Apple vetted this one well before offering it in the Apple Store. Given all the problems that people have reported with this, it doesn't seem that they did. I wish that Apple would either choose another third-party displas to recommend, or begin making their own again.

    8 of 8 people found this useful

  • 2.0 out of 5 stars


    I've been using this monitor for about 6 months with a 2017 MacBook. After 5-10 minutes displaying a static image on screen, like a pdf, the image will ghost for extended periods of time, and new patterns of image retention will appear before the older ones vanish. Sometimes I look at the screen and wipe my eyes because I think I'm hallucinating or dizzy. This monitor uses an LG-produced panel, obviously, however I have not experience this same issue with my 5K iMac, which also uses an LG panel. The build quality is so-so; even on a sturdy desk you will experience a noticeable amount of wobble, which is annoying if you come from using an iMac. The display is plastic, not glass, and is prone to scratching (never use anything but a clean microfiber cloth to clean). Overall, it performs as advertised as far as interface and ease of use goes-I haven't experience the sleep/wake issues that others have reported, however the brightness adjustment sometimes fails to work until I've opened and closed my MacBook, which can be very annoying.

    Overall, I don't regret purchasing this monitor when it was still at the promotional price, but given that Apple has stated it will make a "professional" monitor to go alongside the upcoming "modular Mac Pro", I'd wait it out to see what they'll have to offer. If the new monitor is anything like the old Cinema and Thunderbolt Displays and current iMacs, which there's no reason to believe they won't be, the UltraFine 4 and 5K monitors will soon be relics.

    6 of 8 people found this useful

  • 5.0 out of 5 stars

    Great monitor.

    No flicks, total control with your Mac keyboard... The secret? Download the LG Screen Manager App and automatically, it will update its firmware, and that's it... Everything is working perfect.


    - Great image, same as my Macbook Pro 2016 (but in 21 inches)
    - Just 1 cable
    - No buttons
    - Good sound


    - Cheap plastic

    5 of 5 people found this useful

  • 5.0 out of 5 stars

    Love this monitor

    Works great with my 2017 MacBook Pro. You don't need to buy anything; it comes with the cable that you attach to your computer, and you don't need speakers because the built-in ones are pretty good. Overall a great product for a clean desk setup

  • 5.0 out of 5 stars

    Great Display

    Absolutely happy with this purchase. No issues whatsoever. Perfect. I had a different 4K display from another maker and had nothing but issues. This LG plugged in and worked perfectly right away.

    2 of 2 people found this useful

  • 3.0 out of 5 stars

    Good picture. Can't adjust brightness. LG app is awful.

    Just bought display at the Apple Store. The screen always just shows the same high level of brightness regardless of light conditions on a 2017 MacBook Pro w/ Touch Bar. Won't respond to any of the following:

    1. When using the LG display as a secondary display, press the "<" button and then control-click the small brightness increase/decrease buttons -- that has no effect for me.

    2. I also tried changing the LG display to be the primary display, but the touch bar on the MacBook Pro still only controls its own screen.

    3. Finally, I downloaded the LG Screen Manager app from LG and attempted to use it to download a firmware update. That app could not even tell what firmware version was currently installed on the monitor and refused to pull down any updates. I then selected the factory reset option on that app, but it had no effect. I can't believe Apple encourages users to download ANY app from LG.

    4 of 5 people found this useful

  • 5.0 out of 5 stars

    Amazingly good screen

    Please take a few minutes and update firmware of your display. Lookup LG Display Manager software, install it and update firmware. You will be rewarded with the most beautiful display currently on the market. Same advice for the LG 5K display.

    2 of 2 people found this useful

  • 5.0 out of 5 stars

    No Issues - Pretty Happy

    I read all the reviews, and candidly, they made this monitor seem horrible. So I went out to Target and bought an Acer 4k monitor, which was horrible for reasons beyond the scope of this message. I returned it and went to the Apple store and mentioned all the issues with the reviews of their new monitor and they said, "if you don't like it or there are issues, just bring it back". I brought it home and I have a new MacBook pro. Essentially this is simply a plug and play monitor (USB-C to USB-C). The color is awesome, I have had zero issues with the sound that people are mentioning, and zero issues with the additional 3 USB-C ports on the back. Yes, it is very expensive, but so was the Thunderbolt monitor from a few years ago. The upside is, it's great (no bitmapping for designers) and you don't require crazy HDMI cables as a monitor one would buy off the shelf at Target does. As a disclaimer, I have the 4k monitor. The apple team was transparent in mentioning the larger 5k monitor is not as good because it requires an additional adaptor, which slows it down. So my recommendation is the smaller monitor which is the one I have. Good luck.

    11 of 11 people found this useful

  • 5.0 out of 5 stars

    An absolutely stunning display

    I wanted a screen for my MacBook Pro and bought this with some trepidation due to several negative reviews. Perhaps I'm lucky but, for me, it's been an absolute dream and perhaps one of the best pieces of computer equipment I've ever bought.

    • Unbox monitor
    • Plug it in
    • Connect the supplied USB-C cable to the MacBook Pro
    • Hey presto! Monitor comes to life with the most amazing image quality. Not only that, it charges the laptop as well.

    Unplug the laptop and the monitor automatically turns off. Love that, too.

    One thing to bear in mind is that the audio output automatically switched from the MacBook Pro to the monitor (at full volume) so that shocked me when an e-mail came in. Simple to change that in System Prefs of course.

    But really, it's a stunning piece of kit. Very solidly built and really, the picture is just amazing.

    2 of 2 people found this useful

  • 3.0 out of 5 stars

    Really nice Monitor but lot of bugs

    I bough a new LG 4k Monitor for my MacBook Pro last month. I have issues with the sound, everything go perfectly and randomly it start making weird noise (like an old Tv when you're not on good channel). I don't find any website to update de firmware of the Monitor.. I have the Mac IOS High Sierra 10.13.1 (the latest). I contacted Apple but they told me to contact the manufacturer of the product. Also, I have bugs with the touch bar menu for the luminosity of the Monitor, sometimes it doesn't appear. Finally, I looked on the Internet to see if the 4k 21.5in screen had a ambiant light sensor and it say "yes" but looks like mine doesn't work. I need to change the luminosity manually each time. Do you have any informations how to troubleshoot theses issues ? I'm a little bit upset for a monitor that we pay 1,000$ CAD. Are they going to make an update soon or anything ?

    1 of 1 people found this useful

  • 5.0 out of 5 stars

    LG Monitor with new MacBook Pro

    I just bought this monitor for use in my office with new MacBook Pro. It works beautifully. NO set up issues whatsoever. It literally popped out of the box, (well packaged), and plugged into the new MacBook Pro with the one cable in less than 5 minutes.

    Very pleased with the product and combo so far.

    Like the vertical adjustability of the LG Monitor stand.

    9 of 9 people found this useful

  • 3.0 out of 5 stars

    Crisp but smaller than you imagine. One dead pixel.

    This monitor is easy to set-up and is crystal-clear. It works seamlessly with the latest MacBook Pro (so much so that I've ditched my ageing desktop Mac completely). Negatives: It's small. I wish that I had saved enough for the 27" model. Whilst the solidity of the stand is excellent and it adjust vertically and tilts with ease, the lack of any swivel means that I have to lift the hefty base plate to move it (we don't all sit locked into a single seating position). Finally, and really annoyingly, I have a dead pixel which I only discovered when trying to edit it out of a photo! It's probably not enough to battle over a belated return, but do make sure that you set the background to plain white to test it when you get one as desktop backgrounds can easily mask these imperfections.

    3 of 4 people found this useful

  • 1.0 out of 5 stars

    Questionable Design, Constantly crashes when plugging in

    Without fail every time I plug in this monitor the entire system freezes requiring a restart. While this has been buggy before 10.13, 10.13 has taken this to a whole new level of buggyness.

    This is on a 15" 2017-maxed-out-macbook-pro and using LG's provided screen manager utility so it's quite clear problems still exist with this product even after routergate.

    Otherwise I'd love to say the monitor is great for the price - with decent colour and resolution for a 21" screen.

    But it's questionable design makes it's a shame it doesn't work with more devices, and some standard usb ports and/or ethernet on the back would be much more useful than usb 2.0-speed usb c ports. What are you actually imagining we plug into these?

    All in all after owning this for 3 months or so I can say this would be a much better screen all round if they had just put some decent standard connectivity onto it.

    4 of 5 people found this useful