LG 34UM64 - User Manual

Questions and Answers

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Colin LloydAug 16, 2025
What to do if nothing is displayed on my LG 34UM64 Monitor screen?
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  Jennifer JohnstonAug 16, 2025
  If nothing is displayed on your LG Monitor screen, ensure the power cord is correctly plugged into the outlet. Also, check the power cable connection and press the power button. Verify that the connected input is enabled in the Menu settings. If the monitor is in power-saving mode, move the mouse or press any key. Confirm that your computer is turned on. If signals from the PC are out of range, refer to the Product Specification section of this manual to set the appropriate frequency. Finally, check and reconnect the cable.
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Geoffrey WeeksAug 19, 2025
Why is my LG 34UM64 screen display unstable and shaky?
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  Erin DavisAug 19, 2025
  If your LG Monitor screen display is unstable or shaky, or if images leave shadow trails, and the 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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Michelle LeonardAug 22, 2025
How to prevent image retention on my LG 34UM64 Monitor?
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  Ryan MillsAug 22, 2025
  If your LG Monitor screen retains an image, it's because displaying a still image for a prolonged time may cause damage, resulting in image retention. To extend the monitor's lifetime, use a screensaver.
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dlynnAug 26, 2025
Why is my LG Monitor screen unstable and shaky?
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  Penny PadillaAug 26, 2025
  If your LG Monitor screen display is unstable or shaky, or if images are leaving shadow trails, and you're using HDMI 1080i 60/50 Hz (interlaced) resolution, this may cause flickering. Try changing the resolution to 1080P or the recommended resolution.
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hmccoyAug 28, 2025
Why is my LG 34UM64 Monitor display color abnormal?
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  allisonmedinaAug 28, 2025
  If you notice abnormal colors on your LG Monitor, first set the color to 24 bit (true color) or higher via Control Panel > Display > Settings > Color Quality in Windows. Also, check the signal cable connection, reconnect it, or reinsert the PC's video card. Note that this might not be an error related to the monitor's performance.
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juliahooverAug 31, 2025
What to do if my LG 34UM64 Monitor screen display is unstable and shaky?
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  hryanAug 31, 2025
  If your LG Monitor screen display is unstable, shaky, or images leave shadow trails, and the resolution is set to 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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rodriguezlarrySep 3, 2025
How to unlock the OSD on my LG 34UM64?
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  Amy UnderwoodSep 3, 2025
  If the OSD Locked message is displayed on your LG Monitor, go to Menu > Settings and set OSD Lock to Off.
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Robert WatsonSep 6, 2025
How to turn off OSD lock on LG 34UM64 Monitor?
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  Jennifer BlackburnSep 6, 2025
  If the OSD Locked message appears on your LG Monitor, navigate to Menu > Settings and set OSD Lock to Off.
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Anna PotterSep 9, 2025
Why does my LG 34UM64 Monitor screen retain an image?
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  Tara MorganSep 9, 2025
  If your LG Monitor retains an image, it may be due to displaying a still image for an extended period, which can damage the screen. To extend the monitor's lifespan, use a screensaver.
T
Tyler ArmstrongSep 12, 2025
How to unlock OSD on LG 34UM64?
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  Heidi WallaceSep 12, 2025
  If the OSD Locked message appears on your LG Monitor, navigate to Menu > Settings and set OSD Lock to Off.

LG 34UM64 Specifications

General

Screen Size	34 inches
Resolution	2560 x 1080
Panel Type	IPS
Aspect Ratio	21:9
Refresh Rate	60Hz
Brightness	250 cd/m²
Contrast Ratio	1000:1
Response Time	5ms (GTG)
Color Gamut	sRGB 99%
VESA Mount	100 x 100 mm
Connectivity	HDMI, DisplayPort
Viewing Angle	178° (H) / 178° (V)
Ports	2 x HDMI, 1 x DisplayPort