LG 34UM68 User Manual (English)

Questions and Answers:

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kathleennicholsonJul 28, 2025
Why is nothing displayed on my LG 34UM68 screen?
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  Brittany BrownJul 28, 2025
  There could be several reasons why nothing is displayed on your LG Monitor screen. First, check if the power cord is correctly plugged into the power outlet and ensure the power cable is connected, then press the power button. Also, verify that the connected input is enabled by going to Menu > Quick Settings > Input. If the monitor is in sleep mode, move the mouse or press any key on the keyboard. Make sure your computer is turned on. If the signals from your PC are out of the monitor's frequency range, see the Product Specification section of this manual to set the appropriate frequency. Finally, check the signal cable between the PC and the monitor, and reconnect it if necessary.
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brittanyharmonAug 2, 2025
How to fix no sound from headphone port or speaker on LG 34UM68 Monitor?
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  James TurnerAug 2, 2025
  If there is no sound from the headphone port or speaker on your LG Monitor, first try increasing the volume using the button on the monitor. If that doesn't work, set the audio output of the PC to the monitor you are using by going to Control Panel > Hardware and Sound > Sound and setting the monitor as the default device.
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hughescynthiaAug 7, 2025
What to do if the display color is abnormal on my LG Monitor?
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  George LeblancAug 7, 2025
  If the display color on your LG Monitor is abnormal, try setting the color to 24 bit (true color) or higher via Control Panel > Display > Settings > Color Quality in Windows. Ensure the signal cable is properly connected by reconnecting it or reinserting the PC's graphics card. Note that pixilated spots (red, green, blue, white, or black) may appear on the screen, which is normal for an LCD screen and not an error.
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Kayla SanchezAug 12, 2025
What to do if the screen display is unstable and shaky on my LG 34UM68 Monitor?
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  Carl KingAug 12, 2025
  If your LG Monitor's screen display is unstable, shaky, or images leave shadow trails, and 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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maryespinozaAug 17, 2025
Why is the OSD lock message being displayed on my LG Monitor?
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  jonathan15Aug 17, 2025
  If the OSD lock message is displayed on your LG Monitor, go to Menu > General and set OSD Lock to Off.
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James BryantAug 22, 2025
Why does my LG Monitor screen retain an image?
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  Kevin BondAug 22, 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.

LG 34UM68 Specifications

General

Screen Size	34 inches
Resolution	2560 x 1080
Panel Type	IPS
Aspect Ratio	21:9
Response Time	5 ms
Brightness	300 cd/m²
Contrast Ratio	1000:1
AMD FreeSync	Yes
Viewing Angle	178° (H) / 178° (V)
Color Gamut	sRGB 99%
VESA Mount	100 x 100 mm
Connectivity	2 x HDMI, 1 x DisplayPort, Headphone Out
Refresh Rate	60 Hz (75 Hz Overclocked)