HP 21-inch User Manual download pdf (Page 13)

HP 21" Color Monitor User’s Guide

English 13

What Video Modes are Supported

Your monitor comes with the standard modes shown in the table below. It also

supports intermediate video modes. With the intermediate modes, the displayed image

may need to be optimized using the buttons on the front panel. All modes are non-

interlaced. Your monitor is GTF* compatible.

*GTF stands for General Timing Formula.

Resolution Refresh rate/Hz

640 x 400 70

640 x 480 60, 85

800 x 600 85

1024 x 768 75, 85

1280 x 1024 75, 85

1600 x 1200 75, 85, GTF

1800 x 1440 80

Minimizing Eye Strain

To avoid screen flicker and minimize eye strain, use the highest supported image

refresh rate for the chosen resolution. It is recommended that you use a refresh rate of

85 Hz. The image refresh rate is the number of times per second that the image is

refreshed.

Minimizing Energy Consumption

If your computer supports VESA monitor power management (available on many HP

computers), you can minimize the power consumed by the monitor.

There are two power saving modes:

• Suspend mode 1 (uses less than 10 W).

• Active off mode 2 (uses less than 3 W). In this mode, the monitor’s front panel

indicator light blinks slowly in green.

To set these power saving modes, refer to the manual that came with your computer.

If your screen is not displaying an image, check the front panel indicator light first —

your monitor may be in a power saving mode.

Using Your Monitor

1 Suspend mode is activated when vertical sync is cut by the video controller.

2 Active off mode is activated when both vertical and horizontal sync are cut by the video controller.

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HP 21-inch User Manual Page 13