HP S2231 21.5-inch Diagonal LCD Monitor - Manual (Page 31)

Troubleshooting
Solving Common Problems
The following table lists possible problems, the possible cause of each problem, and the recommended
solutions:
Problem Solution
Power LED is not on. Make sure the Power button is on, and the power cord is properly connected to a grounded
power outlet and to the monitor.
Screen is blank. Connect the power cord. Turn on the power.
Connect the video cable properly. See
Press a key on the keyboard or move the mouse to turn off the screen-blanking utility.
Image appears blurred,
indistinct, or too dark. the Menu
button to open the OSD menu, and adjust the brightness and contrast scales.
Image is not centered. Press the Menu button to access the OSD menu. Select Image Control, and then select
Horizontal Position
or Vertical Position to adjust the position of the image.
Check Video Cable appears
on screen. Connect the monitor VGA or DVI-D signal cable to the VGA or DVI-D connector on the
computer. Be sure that the computer power is off while connecting the video cable.
Input Signal Out of Range
appears on screen. Restart your computer and enter Safe Mode. Change your settings to a supported setting
(see the table in " ). Restart your
computer so that the new settings take effect.
Picture is fuzzy and has
ghosting, shadowing
problem. Adjust the contrast and brightness controls.
Make sure that you are not using an extension cable or switch box. We recommend plugging
the monitor directly into the graphic card output connector on the back of your computer.
The auto adjustment feature might fix this problem (VGA input only).
Unable to set the monitor to
the optimal resolution. Make sure the graphics card supports the optimal resolution.
Make sure the latest supported driver is installed for the graphics card. For HP and Compaq
systems, you can download the latest graphics driver for your system from: www.hp.com/
support. For other systems, refer to the Web site for your graphics card.
Screen is black or displaying
at a lower resolution while
displaying high-definition
(HD) content. Check if your monitor and computer support HDCP. Refer to High-Content Digital Bandwidth
Protection or
http://www.hp.com/support .
C
“Connect for more
information.
Factory Preset Display Mode " in Technical Information
29
Press the OK button on the monitor. If this does not correct the image, press
your monitor to your computer＂