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To find out which image refresh rates are supported by your display,
refer to "Supported Video Modes" on page 15. To set the image refresh
rate (also known as the vertical frequency), refer to the manual that
came with your PC or your operating system documentation, if
necessary. If your PC supports Plug and Play, it will automatically
select the best refresh rate for the screen resolution you have set.
Minimizing Energy Consumption
If your PC supports VESA display power management (available on
many HP Vectra PCs), you can minimize the power consumed by the
display. There are two power saving modes:
1
Standby mode
(uses less than 30W). In this mode, the display's
•
front panel indicator light is green.
2
Sleep mode
(uses less than 1W). In this mode, the display's front
•
panel indicator light is green blinking.
To set these power saving modes, refer to the manual that came with
your PC. If your screen is not displaying an image, check the front
panel indicator light first — your display may be in a power saving
mode.
1.
Standby mode is activated when vertical sync is cut by the video controller.
2.
Sleep mode is activated when both vertical and horizontal sync are cut by the video controller.
HP D2840A User's Guide
Using the Display
English 13
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