分类: BSD
2009-12-30 17:31:01
VESA 显示器电源管理信号是VESA协会的一个标准,该标准通过显卡来管理显示器的供电,例如在电脑有空闲一定时间后自动关闭显示器,达到省电的目的。
DPMS 1.0 was issued by in 1993 , and was based on the 's (EPA) earlier specifications. Subsequent revisions were rolled into future .
DPMS 1.0 由VESA于1993年发布,最初是基于美国环保局之前的能量之星电源管理规范。后来的一些修正版本一起被融合到VESA BIOS扩展中。
The standard defines how to signal the and pins in a standard monitor to trigger the monitor's power saving capabilities.
该标准定义了如何设置标准SVGA显示器的水平同步和垂直同步针脚的信号,以触发显示器的节电功能。
DPMS defines four modes, normal, standby, suspended and off. In off some power may still be drawn in order to power indicator lights. The standard is:
DPMS定义了四种模式,分别为正常、待机、挂起和关闭。在关闭模式下,为了给电源指示灯供电,可能仍需要使用一小部分电能。这四个模式如下:
H-sync 水平同步 |
V-sync 垂直同步 |
Power 能量消耗 |
Recovery Time 恢复到正常 模式的时间 |
|
---|---|---|---|---|
Turned on |
On |
On |
100% |
n/a |
Stand-by (待机) |
Off |
On |
< 80% |
~1 Sec. |
Suspend (挂起) |
On |
Off |
< 30W |
~5 Sec. |
Turned off |
Off |
Off |
< 8W |
~20 Sec. |
On a Targa TM 3820 PNLD Monitor
(requires purchase of the specification)
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