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HP x20LED, x22LED, x22LEDc, and x23LED Flat Panel Monitors - Using and Adjusting your Monitor

This document describes how to use and adjust the HP x20LED, x22LED, x22LEDc, and x23LED flat panel monitors.

Installing drivers

Install the monitor-driver INF and ICM files from the CD, or download them from the Internet as follows:

Installing drivers from the CD

To install the monitor driver from the CD:
  1. Insert the CD in the computer CD drive.
    The CD menu displays.
  2. Select the language.
  3. Click Install Monitor Driver Software.
  4. Follow the on-screen instructions.
  5. Restart the computer.
  6. Check that the proper resolutions and refresh rates display in the Display Properties window in Control Panel.

Installing drivers from the Web

To download the latest version of drivers and software files from the HP Support Web site:
  1. Select the country/region.
  2. Select Download Drivers and Software.
  3. Type the model number of the monitor, for example x20LED.
    The software download pages for the monitor display.
  4. Make sure the system meets the specified requirements.
  5. Download and install the driver and software files by following the steps on the screen.

Front panel components

Monitor control buttons are located on the bottom of the front panel.
Figure : Monitor control buttons
Image of the monitor control buttons.
Auto-adjusts the display to the ideal setting. Always start with this when adjusting monitor settings.
To use the auto-adjustment feature, press the key and release it immediately. To use input source selection function, press and hold the key for 3 seconds.
Navigates backward through the On-Screen Display (OSD) menu and decreases adjustment levels.
Navigates forward through the OSD menu and increases adjustment levels.
Opens, selects, or exits the OSD menu.
Turns the monitor on and off, and indicates standby or sleep mode.


Optimize the screen performance for the VGA input by using the Auto/Select button on the monitor and the auto-adjustment pattern software on the CD provided. This software can correct the following conditions:
  • Fuzzy or unclear focus
  • Ghosting, streaking, or shadowing effects
  • Faint vertical bars
  • Thin, horizontal scrolling lines
  • Off-center picture
To use the auto-adjustment feature:
  1. Allow the monitor to warm up for 20 minutes before adjusting.
  2. Press the Auto button and release it immediately.
  3. Press the Menu button on the monitor panel, and then select Image Setup. Adjust the Clock and Phase settings.
    If the result is not satisfactory, continue with this procedure.
  4. Insert the monitor CD in the computer.
    The CD menu displays.
  5. Select the language.
  6. Select Open Auto-Adjustment Software.
    The setup test pattern displays.
    Figure : Setup test pattern
    Image of the setup test pattern.
  7. Press the Auto button on the monitor panel to produce a stable, centered image.

Using On-Screen Display (OSD)

Follow these steps to adjust monitor settings with the on-screen display menu.
  1. Turn on the computer and monitor.
  2. Press the Menu button to access the on-screen display menu.
    The OSD main menu opens to the Luminance screen.
    Figure : OSD Menu
    Image of the OSD menu.
  3. To navigate through the Main or Submenu menus, on the monitor front panel press the + (plus) button to move up, or the - (minus) button to move in reverse.
  4. Press the Menu button to select the highlighted item.
  5. When a menu item is selected and its corresponding screen displays, use the + or - button to adjust the scale of the item.
  6. Select Menu to save the adjustment.
  7. Press the Menu button to exit the on-screen display menu.
    When a menu is displayed, if the buttons remain untouched for 30 seconds, adjustments and settings are saved and the menu closes automatically.
The following table lists the OSD functions:
Main Menu Options
Submenu Options
Adjusts the contrast level on-screen between darks and lights.
Adjusts the brightness level of the screen.
Eco Mode
Adjust the display for the best viewing settings to view. Choose from Standard, Text, Internet, Game, Movie, and Sports.
Dynamic contrast ratio measures the blackest black of one image to the whitest white of another image and then adjusts the screen for the best picture. Choose between On and Off.
Image Setup
Minimizes any vertical bars or strips visible on the screen background. Adjusting the clock also changes the horizontal screen image (VGA input only). The adjustment range is from 0 to 100. Each step increases or decreases the value by one.
Adjusts focus. This adjustment helps remove horizontal noise, and clear or sharpen characters or images (VGA input only). The adjustment range is from 0 to 100. Each step increases or decreases the value by one.
Horizontal Position
Adjusts the horizontal position of the picture (VGA input only).
Vertical Position
Adjusts the vertical position of the picture (VGA input only).
Image Ratio
Select the Image Aspect Ratio between Wide and 4:3.
Color temperature
Changes to slightly reddish white
Changes to equal amounts of warm and cool.
Changes to slightly bluish white
Sets your screen colors to adapt to the color standards used in the image technology industry.
Adjusts the amount of red in the picture. The adjustment range is from 0 to 100. Each step increases or decreases the value by one.
Adjusts the amount of green in the picture. The adjustment range is from 0 to 100. Each step increases or decreases the value by one.
Adjusts the amount of blue in the picture. The adjustment range is from 0 to 100. Each step increases or decreases the value by one.
OSD Setup
Horizontal Position
Changes the viewing position of the OSD menu to the left or right. The factory default range is 50.
  • OSD Transparency - Makes it possible to view background information through the OSD.
  • OSD Timeout - Sets the time in seconds the OSD is visible after the last button is pressed. Factory default is 30 seconds.
Vertical Position
- Changes the viewing position of the OSD menu to the top or bottom of the screen. Default range is 50.
Adjusts the time before the OSD menu times out and closes.
Selects the language in which the OSD menu is displayed. The factory default is English.
Input Select
Select the video input signal. Select between D-SUB 9analog) and DVI.
DDC/CI is a communication channel between the display and the graphics adapter. This setting allows the computer to control some OSD menu features such as brightness, contrast, and color temperature.
Select to turn on or off.
Returns the display settings to factory defaults.
Displays the operating status of the monitor each time the monitor is turned on, including the resolution, and horizontal and vertical frequency.

Locking and unlocking the OSD menu

Follow the appropriate steps to lock or unlock the OSD menu:

Locking the OSD menu

  1. Turn the monitor off.
  2. Press and release the Menu button and the Power button at the same time.
    The Monitor turns on and displays the OSD locked message. The OSD is now locked.

Unlocking the OSD menu

  1. Turn the monitor off.
  2. Press and hold the Menu button.
  3. Press and release the Power button.
  4. Release the Menu button.
    The OSD is now unlocked.

Identifying monitor conditions

Special messages display on the monitor for the following monitor conditions:
  • Input Signal Out of Range: Indicates the monitor does not support the input signal because the resolution or refresh rate are set higher than the monitor supports. Recommended refresh rates are as follows:
    • For the x20LED monitor: 1600 x 900 @ 60 Hz
    • For the x22LED/ x22LEDc monitors: 1920 x 1080 @ 60 Hz
    • For the x23LED monitor: 1920 x 1080 @ 60 Hz
  • No Signal: Indicates the monitor is not receiving a video signal from the computer on the monitor video input connector. Check whether the computer or input signal source is off or in the power-save mode.
  • Auto Adjustment in Progress: Indicates the auto-adjustment function is active and in process.


The following table lists possible problems, the possible cause of each problem, and the recommended solutions.
Power LED is not on.
Make sure the power cord is connected to a grounded power outlet and to the monitor.
No Plug and Play.
For the Plug and Play feature of the monitor to work, you need a Plug and Play compatible computer and video card. Check with your computer manufacturer.
Check the monitor video cable and make sure none of the pins are bent.
Make sure the HP monitor drivers are installed.
Picture is fuzzy and has ghosting and shadowing problems.
Adjust the contrast and brightness controls.
Make sure you are not using an extension cable or switch box. HP recommends plugging the monitor directly into the video card output connector on the back of the computer.
For VGA input, use the auto-adjustment feature to try to fix this problem.
Picture bounces and flickers, or a wave pattern is present in the picture.
Move electrical devices that might cause electrical interference as far away from the monitor as possible.
Use the maximum refresh rate the monitor is capable of at the resolution you are using.
Monitor is stuck in “Active Off-Mode.”
Check the computer:
  • The computer power switch should be in the On position.
  • The computer video card should be snugly seated in its slot.
  • Make sure the computer is operational by pressing the Caps Lock key on the keyboard while observing the Caps Lock LED. The LED should turn on and off.
Make sure the monitor video cable is correctly connected to the computer.
Inspect the monitor video cable and make sure none of the pins are bent.
“Out of Range. Set Monitor to [your monitor's optimum resolution]” is displayed on the screen.
Restart the computer and enter Safe Mode. Change the settings to the recommended resolution. Restart the computer so that the new settings take effect.
Missing one of the primary colors (red, green, or blue).
Make sure the monitor video cable is correctly connected to the computer.
Inspect the monitor video cable and make sure none of the pins are bent.
Screen image is not centered or sized correctly.
Adjust the horizontal and vertical screen position, or press AUTO.
For VGA input, use the auto-adjustment feature to try to fix this problem.
Picture has color defects (white does not look white).
Adjust RGB color or select color temperature.
Unable to set the monitor to the optimal resolution.
Make sure that the graphics adapter supports the optimum resolution (1920 x 1080).
Make sure the HP monitor drivers are installed.
Horizontal or vertical disturbances on the screen
Adjust CLOCK and Phase or press the Auto button to display the ideal setting. To optimize the screen performance for VGA input, use the Auto button on the monitor and the auto-adjustment pattern software utility on the CD provided. For DVI input, adjust the video graphics card installed in the computer.

Power-saver feature

When the monitor is in normal operating mode, the Power light is blue and the monitor uses the normal watts of power. The monitor also supports a reduced power state which occurs if the monitor detects the absence of either the horizontal sync signal or the vertical sync signal. When detecting the absence of these signals, the screen becomes blank, the backlight turns off, and the Power light turns amber. When the monitor is "awakened," a brief warm-up period occurs before the monitor returns to normal operating mode.
The power-saver feature must be activated on your computer for this feature to work. Refer to your computer documentation for instructions on setting energy-saver features (sometimes called power-management features).
The energy-saver feature works only when the monitor is connected to a computer that has energy-saver features.

Tips and recommendations

  • Unplug your monitor from the wall outlet before cleaning. Clean the monitor plastics with a clean cloth dampened with water. Do not use liquid cleaners or aerosol cleaners. Clean the monitor screen with an antistatic screen cleaner.
  • Do not open your monitor cabinet or try to service this product yourself. Adjust only those controls that are covered in the operating instructions. If your monitor is not operating correctly, or has been dropped or damaged, contact your HP authorized dealer, reseller, or service provider.
  • Use only a power source and connection appropriate for this monitor, as indicated on the label or back plate of the monitor.
  • Never disconnect the monitor by pulling the cord.
  • Turn your monitor off when not in use. You can substantially increase the life expectancy of your monitor by using a screen saver program and turning off the monitor when not in use.
  • When removing the monitor base, place the monitor face down on a soft flat area to prevent it from getting scratched, defaced, or broken.
  • Burn-in image damage might occur on monitors that display the same static image on the screen for a prolonged time. To avoid burn-in image damage on your monitor, always start a screen saver or turn off the monitor when it is not in use for a prolonged period.






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