User Manual

55 Troubleshooting
Faint shadow from the static image displayed is visible on the screen.
• Activate the power management function to let your computer and monitor go into a low
power "sleep" mode when not actively in use.
• Use a screensaver to prevent the occurrence of image retention.
The image is distorted, flashes or flickers.
Read the instructions on the link "Adjusting the Screen Resolution" on the DVD, and then
select the correct resolution, refresh rate and make adjustments based on these instructions.
You are running the monitor at its native resolution, but the image is still distorted.
Images from different input sources may appear distorted or stretched on the monitor running
at its native resolution. To have the optimal display performance of each type of input sources,
you can use the Aspect Ratio function to set a proper aspect ratio for the input sources. See
Aspect Ratio on page 36 for details.
The image is displaced in one direction.
Read the instructions on the link "Adjusting the Screen Resolution" on the DVD, and then
select the correct resolution, refresh rate and make adjustments based on these instructions.
The OSD controls are inaccessible.
To unlock the OSD controls when it is preset to be locked, press and hold any key for 10
seconds.
The light sensor of the monitor does not work well.
The light sensor is located at the front bottom of the monitor. Please check:
• If the Eye Protect function is set to ON. Check ERGONOMICS > Eye Protect.
• If there are any obstacles in front of the sensor that keep the sensor from detecting the light
properly.
• If there are any objects or clothing in bright colors in front of the sensor. Bright colors
(especially white and fluorescent colors) reflect light and the sensor cannot detect the main
light sources.