Acer 486 User Manual page 22

1.14 VESA DPMS
The Video Electronics Standard Association (VESA) proposed the
Display Power-Management Signaling (DPMS) standard combinations
of horizontal and vertical synchronization signals for the PC-VGA
monitor. Its purpose is to comply with the U.S. Environmental
Protection Agency (EPA) requirements.
Table 1-8 lists the different VESA DPMS modes and their functions.
Table 1-8 VESA DPMS Modes
H-Sync V-Sync
Off Off
On Off
Off On
On On
1-22
Monitor Mode Function
Off No operation
Suspend Power-saving
Standby Screen-saving
On Normal operation
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