To Next PageTo Next PageWhy are some functions not available when I press the Menu button on my LG 27UL55B?
If some functions are not available when you press the Menu button on your LG Monitor, it might be because the OSD is locked. To resolve this, disable OSD Lock in the General settings.
What to do if my LG Monitor says "Unrecognized monitor, Plug and Play (VESA DDC) monitor found"?
If you see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message on your LG Monitor, be sure to install the display driver from the LG website: http://www.lg.com. Also, make sure to check if the graphics card supports the Plug and Play function.
How to prevent image sticking on my LG Monitor?
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.
How to unlock the menu on my LG 27UL55B?
If some functions are unavailable when you press the Menu button on your LG Monitor, the OSD might be locked. To resolve this, disable OSD Lock in the General settings.
What to do if I see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message on my LG 27UL55B?
If you see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message on your LG Monitor, install the display driver from the LG website. Also, make sure to check if your graphics card supports the Plug and Play function.
What to do if nothing is displayed on my LG Monitor screen?
If nothing is displayed on your LG Monitor screen, first, ensure the power cord is correctly plugged into the power outlet. Then, check the power cable connection and press the power button. Also, verify that the connected input is enabled in the monitor's settings under Input. Finally, check the signal cable between your PC and the monitor to ensure it's properly connected. If the issue persists, the signals from your PC might be out of the monitor's frequency range; refer to the Product Specification section of the manual to set the appropriate frequency.
How to fix 'Unrecognized monitor, Plug and Play (VESA DDC) monitor found' message on LG 27UL55B Monitor?
If you see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message on your LG Monitor, be sure to install the display driver from the LG website. Also, make sure to check if the graphics card supports Plug and Play function.
What to do if my LG 27UL55B Monitor screen display is unstable and shaky?
If your LG monitor's screen display is unstable or shaky, or if images displayed on the monitor 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. Also, not setting the graphics card to the recommended (optimal) resolution may result in blurred text, a dimmed screen, a truncated display area or misalignment of the display.
What to do if LG 27UL55B screen display is unstable and shaky?
If the screen display on your LG Monitor is unstable and shaky, or if 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. In addition, not setting the graphics card to the recommended (optimal) resolution may result in blurred text, a dimmed screen, a truncated display area, or misalignment of the display. The setting methods may be different depending on the computer or operating system, and some resolutions may not be available depending on the performance of the graphics card. If this is the case, contact the manufacturer of the computer or graphics card for assistance.
What to do if there is no sound from the headphone port of my LG 27UL55B?
If you're experiencing 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 you are using. Note that the settings may differ depending on your operating system.
General| Screen Size | 27 inches |
|---|---|
| Resolution | 3840 x 2160 (4K UHD) |
| Panel Type | IPS |
| Aspect Ratio | 16:9 |
| Refresh Rate | 60 Hz |
| Contrast Ratio | 1000:1 |
| Color Gamut | sRGB 99% |
| HDR | HDR10 |
| VESA Mount | 100 x 100 mm |
| Response Time | 5ms (GTG) |
| Brightness | 300 cd/m² |
| Viewing Angle | 178°/178° |
| Connectivity | HDMI, DisplayPort |
