“VESA Display Power Management Signaling”的意思、由来-开放百科全书

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VESA Display Power Management Signaling

释义

History
Design
See also
References
External links

VESA Display Power Management Signaling (or DPMS) is a standard from the VESA consortium for power management of video monitors. Example usage includes turning off, or putting the monitor into standby after a period of idle time to save power. Some commercial displays also incorporate this technology.

History

VESA issued DPMS 1.0 in 1993,^[1] basing their work on the United States Environmental Protection Agency's (EPA) earlier Energy Star power management specifications. Subsequent revisions were included in future VESA BIOS Extensions.

Design

The standard defines how to signal the H-sync and V-sync pins in a standard SVGA monitor to trigger the monitor's power saving capabilities.

DPMS defines four modes; normal, standby, suspended and off. When in the "off" state some power may still be drawn in order to power indicator lights.

The standard is:

State	H-sync	V-sync	Power	Recovery Time^[2]
On	On}}	On}}	100%	n/a
Stand-by	Off}}	On}}	< 80%	~1 Sec.
Suspend	On}}	Off}}	< 30W	~5 Sec.
Off	Off}}	Off}}	< 8W	~20 Sec.

References

1. ^{{Cite web |url=http://eetd.lbl.gov/EA/Reports/39466/39466-8 |title=PC User Guide: Chapter 8 |access-date=2007-04-16 |archive-url=https://web.archive.org/web/20111122155220/http://eetd.lbl.gov/EA/Reports/39466/39466-8 |archive-date=2011-11-22 |dead-url=yes |df= }}
2. ^On a Targa TM 3820 PNLD Monitor

External links

VESA Display Power Management Signaling (DPMS) Standard (requires purchase of the specification)
[https://web.archive.org/web/20120627050710/http://www.vesa.org/vesa-standards/standards-summaries/ VESA Standards Listing]

1 : VESA

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History

Design

See also

References

External links