LG 34CB88-B User Manual (English)

Questions and Answers:

A
Alison DavisAug 25, 2025
Why is there no sound from my LG 34CB88-B Monitor headphone port?
- J
  Jennifer RomeroAug 25, 2025
  If there is no sound from the headphone port on your LG Monitor, first make sure that the headphone port connections are properly made. Then, try increasing the volume using the joystick. Finally, set the audio output of your PC to the monitor you are using by going to Control Panel > Hardware and Sound > Sound on Microsoft Windows and setting the Monitor as the default device.
K
Kyle CopelandAug 25, 2025
How to fix LG Monitor when nothing is displayed on the screen?
- C
  Cynthia WebbAug 26, 2025
  If nothing is displayed on your LG Monitor screen, there are several things you can check: * Ensure the power cord is correctly plugged into the power outlet and that the power cable is properly connected. Then, press the power button. * Make sure 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. Also, verify that your computer is turned on. * If the signals from your PC are out of the monitor's frequency range, refer to the Product Specification section of this manual to set the appropriate frequency. * Check the signal cable between the PC and the monitor to ensure it is properly connected. Reconnect if necessary.
V
vriveraAug 27, 2025
What to do if there is no sound from the headphone port on LG 34CB88-B?
- S
  Scott WolfAug 27, 2025
  If there is no sound from the headphone port on your LG Monitor: * Ensure that the headphone port connections are properly made. * Try increasing the volume using the joystick. * Set the audio output of your PC to the monitor. On Microsoft Windows, go to Control Panel > Hardware and Sound > Sound and set the Monitor as the default device.
R
Ryan HammondAug 27, 2025
Why is my LG 34CB88-B screen display unstable and shaky?
- D
  Dr. Jennifer SmithAug 27, 2025
  If your LG Monitor's screen display is unstable, shaky, or images leave shadow trails, and the resolution is set to HDMI 1080i 60/50 Hz (interlaced), this may cause flickering. Change the resolution to 1080p or the recommended resolution to resolve this issue.
S
Samantha HubbardSep 12, 2025
How to fix unstable and shaky screen display with shadow trails on LG 34CB88-B Monitor?
- S
  Sharon BoydSep 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.
B
Benjamin CastroSep 9, 2025
Why does the screen retain an image on my LG Monitor?
- A
  Angela WilliamsSep 10, 2025
  To extend the lifetime of your LG Monitor and prevent the screen from retaining an image, use a screensaver. Displaying a still image for a prolonged time may cause damage to the screen, resulting in the retention of the image.
W
Walter MillerSep 12, 2025
What to do if my LG 34CB88-B screen display is unstable and shaky?
- J
  Julie RamirezSep 12, 2025
  If your LG monitor's screen display is unstable and shaky, or if images leave shadow trails, try changing the resolution to 1080p or the recommended resolution.
M
Michael LarsonSep 3, 2025
How to troubleshoot no sound from the headphone port on my LG Monitor?
- C
  creynoldsSep 3, 2025
  If there is no sound from the headphone port on your LG Monitor, first make sure that the headphone port connections are properly made. If the connections are correct, try increasing the volume using the joystick. Finally, set the audio output of the PC to the monitor you are using by going to Control Panel > Hardware and Sound > Sound and set the Monitor as the default device.
D
Diana AcevedoSep 1, 2025
How to fix an LG 34CB88-B Monitor when nothing is displayed on the screen?
- R
  rroblesSep 1, 2025
  If nothing is displayed on your LG Monitor, ensure the power cord is correctly plugged into the power outlet. Also, check the power cable connection and press the power button. Verify that the connected input is enabled by navigating to Menu > Quick Settings > Input. If the monitor is in sleep mode, move the mouse or press any key on the keyboard. Also, ensure your computer is turned on. If the signals from your PC are out of the monitor's frequency range, consult the Product Specification section of this manual to set the appropriate frequency. Finally, check the cable and reconnect it.
H
Heather GoodwinSep 2, 2025
What to do if the screen display is unstable and shaky on my LG Monitor?
- M
  Mariah MurphySep 2, 2025
  If the screen display on your LG Monitor is unstable and shaky, or if images leave 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.

LG 34CB88-B Specifications

General

Screen Size	34 inches
Resolution	3440 x 1440
Panel Type	IPS
Aspect Ratio	21:9
Refresh Rate	60Hz
Brightness	300 cd/m²
Contrast Ratio	1000:1
Response Time	5ms (GTG)
Color Gamut	sRGB 99%
VESA Mount	100 x 100 mm
Connectivity	HDMI, DisplayPort
Ports	2x HDMI, 1x DisplayPort, 2x USB 3.0, 1x USB-C
Features	Flicker Safe, Reader Mode