LG 34UM59 User Manual (English)

Questions and Answers:

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William BrownAug 9, 2025
What to do if nothing is displayed on my LG 34UM59 screen?
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  Kellie DominguezAug 9, 2025
  If your LG Monitor screen is blank, start by ensuring the power cord is securely plugged into the power outlet. Then, verify the power cable connection and press the power button. Also, make sure the correct input is enabled by navigating to Menu > Quick Settings > Input. If the monitor is in sleep mode, try moving the mouse or pressing a key on the keyboard. Finally, confirm that your computer is turned on. If the signal cable between the PC and the monitor is missing or disconnected, check the cable and reconnect it. If signals transferred from the PC (graphics card) are out of the horizontal or vertical frequency range of the monitor, please see the Product Specification section of this manual to set the appropriate frequency.
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Lori SanchezAug 13, 2025
What to do if my LG 34UM59 Monitor screen display is unstable and shaky?
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  bakerandrewAug 13, 2025
  If your LG Monitor screen display is unstable, shaky, or images leave shadow trails, and if the selected resolution is HDMI 1080i 60/50 Hz (interlaced), the screen may be flickering. Try changing the resolution to 1080P or the recommended resolution.
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Robin GoodwinAug 18, 2025
Why is my LG 34UM59 display color discolored?
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  Alicia CampbellAug 19, 2025
  If the display color on your LG monitor is discolored, first, set the color to 24 bit (true color) or higher by going to Control Panel > Display > Settings > Color Quality in Windows. Also, check if the signal cable is properly connected; try reconnecting the cable or reinserting the PC's graphics card. Note that pixilated spots (red, green, blue, white, or black) may appear on the screen. This is normal for an LCD screen and is not related to the monitor's performance.
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audrey60Aug 25, 2025
Why does my LG 34UM59 screen retain an image?
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  Kathleen BradleyAug 25, 2025
  Displaying a still image for a prolonged time may cause damage to the screen of your LG Monitor, resulting in the retention of the image. To extend the lifetime of the monitor, use a screensaver.
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Kayla JenkinsAug 29, 2025
How to turn off the OSD lock message on my LG 34UM59 Monitor?
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  William TaylorAug 29, 2025
  To turn off the OSD lock message on your LG Monitor, navigate to Menu > General and set OSD Lock to Off.
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Christopher EvansSep 2, 2025
What to do if I see an "Unrecognized monitor, Plug&Play (VESA DDC) monitor found" message on my LG Monitor?
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  Gregory SimpsonSep 2, 2025
  Be sure to install the display driver from our web site: http://www.lg.com. Make sure to check if the video card supports Plug&Play function.