LG 43MU79 User Manual (English)

Questions and Answers:

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Jennifer PerkinsJul 27, 2025
What to do if nothing is displayed on my LG Monitor screen?
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  Tonya HarrisJul 27, 2025
  If nothing is displayed on your LG Monitor, ensure the power cord is correctly plugged into the outlet and the power cable is properly connected. Press the power button. Also, verify that the connected input is enabled by navigating to Menu > Input > Input list. If the issue persists and the signal from your PC is out of the monitor's frequency range, refer to the Product Specification section of this manual to set the appropriate frequency. Finally, check the signal cable between the PC and the monitor to make sure it is properly connected.
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Casey EllisJul 31, 2025
Why is my LG 43MU79 screen display unstable and shaky?
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  Gina MartinJul 31, 2025
  If your LG Monitor's screen display is unstable and shaky, especially with shadow trails, and the selected resolution is HDMI 1080i 60/50 Hz (interlaced), the screen may be flickering. Change the resolution to 1080P or the recommended resolution to resolve this issue.
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Brandi RodgersAug 4, 2025
How to fix no sound from LG 43MU79 Monitor headphone port?
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  Sean JenningsAug 4, 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. Also, ensure that the audio output of your PC is set to the monitor. On Microsoft Windows, go to Control Panel > Hardware and Sound > Sound and set the monitor as the default device.
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John ShafferAug 8, 2025
What to do if my LG 43MU79 screen retains an image?
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  Keith DuncanAug 8, 2025
  Displaying a still image for a prolonged time may cause damage to the screen of your LG Monitor, resulting in image retention. To extend the monitor's lifetime, use a screensaver.
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Billy SteeleAug 13, 2025
Why is the display color abnormal on my LG Monitor?
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  Caitlin MackAug 13, 2025
  If the display color on your LG Monitor is abnormal, first set the color to 24 bit (true color) or higher by going to Control Panel > Display > Settings > Color Quality in Windows. Also, check the signal cable connection; try reconnecting the cable or reinserting the PC's graphics card. Note that pixilated spots (red, green, blue, white, or black) may appear, which is normal for an LCD screen and not related to the monitor's performance.
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Steven HumphreyAug 17, 2025
How to fix 'Unrecognized monitor' message on LG 43MU79?
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  Douglas MoralesAug 17, 2025
  If you see an 'Unrecognized monitor, Plug&Play (VESA DDC) monitor found' message on your LG Monitor, install the display driver from the CD or diskette that came with your display. You can also download the driver from the LG website. Additionally, ensure that your video card supports the Plug&Play function.
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Sara SnyderAug 21, 2025
How to turn off OSD lock on LG 43MU79 Monitor?
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  nbishopAug 21, 2025
  If the OSD lock message is displayed on your LG Monitor, go to Menu > General and set OSD Lock to Off. This should remove the OSD lock.

LG 43MU79 Specifications

General

DDC/CI	Yes
Color gamut	72 %
Screen shape	Flat
Response time	8 ms
Display diagonal	43 \
Display technology	LED
Native aspect ratio	16:9
Vertical scan range	56 - 61 Hz
Contrast ratio (typical)	1000:1
Display number of colors	-
Display brightness (typical)	350 cd/m²
Supported graphics resolutions	3840 x 2160
Tilt angle range	-5 - 10 °
Number of OSD languages	17
Panel mounting interface	200 x 200 mm
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (off)	0.3 W
Power consumption (standby)	0.5 W
Power consumption (typical)	70 W
USB hub version	3.2 Gen 1 (3.1 Gen 1)
HDMI ports quantity	4
USB upstream port type	USB Type-C
RMS rated power	20 W
Number of speakers	2
Sustainability certificates	EPEAT Gold
Certification	CB, FCC-B, CE, ROHS, REACH,
Product color	Black