LG 38UC99 Owner's Manual page 49

The display color is abnormal.
Does the display appear discolored
(16 colors)?
Does the display color appear unstable or
monochrome?
Are there spots on the screen?
Do you see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message?
Have you installed the display driver?
No sound from the headphone port.
Are images displayed using DP
(DisplayPort) or HDMI input without
sound?
• Set the color to 24 bit (true color) or higher. In Windows, go to Control Panel > Display > Settings > Color Quality. (The
settings may differ depending on the operating system (OS) you use.)
• Check if the signal cable is connected properly. Reconnect the cable or reinsert the PC's graphic card.
• When using the monitor, pixilated spots (red, green, blue, white, or black) may appear on the screen. This is normal for an LCD
screen. It is not an error, nor is it related to the monitor's performance.
• Be sure to install the display driver from the display driver CD (or diskette) that comes with your display. Or, you can also
download the driver from our web site: http://www.lg.com.
• Make sure to check if the graphic card supports Plug and Play function.
• Make sure that the headphone port connections are made properly.
• Try increasing the volume with the joystick.
• Set the audio output of the PC to the monitor you are using. On Microsoft Windows, go to Control Panel > Hardware and
Sound > Sound > set the Monitor as default device. (The settings may differ depending on the operating system (OS) you use.)
49