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Key Features

  • 21:9 UltraWide® Full HD (2560x1080)
  • Freesync Technology
  • Dynamic Action Sync
  • Black Stabilizer
  • SRGB Over 99%
  • ENERGY STAR® Qualified

available sizes:

34" Discontinued
Cabinet / Accessories

What People Are Saying

Rated 5 out of 5 by from Just a great monitor Bought this to replace a LG that was going after 11 plus years. I was surprised at how wide it was when I pulled it from the box, but not so much more than my older one but can't be happier. Used for gaming and everyday stuff,LG products just are great and last. My brother saw it and loved it. I highly recommend this.
Date published: 2018-08-06
Rated 5 out of 5 by from Great Workspace and Gaming Monitor While I really enjoy this monitor for gaming, what I appreciate about it most is how much real estate I have for work purposes. The extra wide resolution gives me plenty of room to keep multiple windows open on the same monitor and significantly improves my workflow.
Date published: 2018-07-06
Rated 5 out of 5 by from Great Value! I've been extremely pleased with the extra real estate space! The colors have been sharp, data responsive, and has really helped improved my productivity. Given the size & light weight, its actually pretty mobile by reusing the OE box as your case to transport it.
Date published: 2018-04-16
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Ask your questions. Share your answers.
Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

Is the included hdmi cable 4k 60Hz certified?

Asked by: O R A N G
It's the HDMI Ports on a monitor that matter when it comes to passing 4K @ 60 Hz. The ports must be HDMI version 2.0 and must be HDCP 2.2 compliant. The LG 25" Class 21:9 UltraWide® IPS LED Gaming Monitor (25" Diagonal), Model # 25UM57-P has a resolution of 2560 x 1080 (i,e 1080p) and its HDMI Ports are not HDMI 2.0 ports nor are they HDCP 2.2 compliant. The supplied HDMI cable is sufficient for the supported resolution on the monitor and is not 4K 60 Hz certified...^IFV
Answered by: LGJoel
Date published: 2018-09-05

My monitor suddenly did not post anything when plugged in to any computer. Even the menu will not show up. The screen turn on when connected to the computer, but is completely blank. This was tested with multiple computers, the problem is with the monitor

Asked by: s1rp00ps
We are sorry; we are only able to support products in the USA. For the proper support channels, please see ^AC
Answered by: Amber C
Date published: 2018-03-12

I have this monitor but I'm unsure about it's drivers, does it have software to control it ? And does it have the possibility of saving settings in profiles ?

Asked by: silvermirai
Hi Silvermiral. We are not clear on what "software to control' this LG 29" Class 21:9 UltraWide® IPS LED Gaming Monitor (29" Diagonal), Model # 29UM57-P you are referring to. On its support page on our site here in the U.S.,, under the Software, Firmware, & Drivers tab you can find Software upgrades including device drivers and firmware updates only for specific models. Regrettably, this will only work if you in Bucharest unless you are in the U.S. You will need to visit the site for our Support Center in Romania,, to see if they have software, firmware and driver updates that you can download from their site...^IFV
Answered by: LGJoel
Date published: 2018-02-12

My laptop HP envy 3000 Has display port question is if I will connect display port to hdmi on this monitor does it provide me maximum resolution?

Asked by: Evgeny
For you to get the maximum resolution, it’s better to have a straight connection like HDMI to HDMI for it to provide the maximum resolution. If its HDMI to display port, its not guaranteed to get the maximum resolution the monitor has. For further assistance, please give us a ring at 1-800-243-0000. ^AC
Answered by: amber
Date published: 2017-11-16

I have my monitor pluged in but it will not turn on. Do i have to take it apart and install something or get a new cable? The light flashes for a moment in the process of plugging the cable in and then goes out.

Asked by: Shepherdrunner
We regret the inconvenience you have experienced with this monitor. It is recommended to check the electrical outlets and circuit breaker to which this monitor has been connected. If this does not resolve the matter, then the unit may require service. Please contact our Customer Interactive Center at 800-243-0000 to make proper service arrangements.
Answered by: NeilE
Date published: 2017-08-16

What are the specs for the screws needed to attach the 34UM57 to the stand base and body? 

Asked by: JTWB
We appreciate your interest in this monitor. This model is designed to use 2 machine screws measuring M4 x L10 for connecting the stand.
Answered by: NeilE
Date published: 2017-10-21

I need a replacement power supply for my Ultra Wide monitor. Model # 29UM57 / 19V 2.0 A

Asked by: DuMarc
Parts and accessories can be obtained through our parts distributor, MCM Electronics. Their contact number, for placing orders, is 800-824-9491. You can also use their website, at The part number for this item is: EAY62850503.
Answered by: NeilE
Date published: 2018-04-17

My screen cracked and I was wondering how much would it cost to get it fixed.

Asked by: Marq
Your ENERGY STAR® Qualified LG 34" Class 21:9 UltraWide® WFHD IPS LED Gaming Monitor (34" Diagonal), Model # 34UM57-P may have to be inspected first to assess the extent of the screen damage before you can get a quote for how much it will cost to get it repaired. You can contact the Call Representatives at our Call Center, (800) 243-0000 to inquire if they have a flat rate for the repair or if they will have to inspect first to give you a quote...^IFV
Answered by: LGJoel
Date published: 2016-10-26
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