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5.11 VESA Display Power
Management
Because of the tremendous amount of energy consumed by monitors when operating, the system
will reduce power consumption and extend monitor lifecycle by suspending the (switch off)
monitors and projectors when the system goes into sleep/standby.
This applies for all VESA Display Power Management compliant displays that are connected to
the VGA/DVI output of the system. The display device need to comply with VESA display Power
Management system (DPMS).
Note that this requires a system supplied with a VGA/DVI output.
The VESA DPMS standard consists of four modes, Normal, Standby, Suspend and Off, and
applies to all Sync formats (e.g. VGA).
DPMS standard:
Normal Standby Suspend Off
H-sync
On Off On Off
V-sync
On On Off Off
Power savings
None Minimal Substantial Maximum
Recovery time
None 2-3 seconds 2-3 seconds 8-10 seconds
In Off mode some power may still be drawn in order to power indicator lights etc. EDID contains
the information on which mode a specific monitor supports.
TANDBERG supports all four modes. However, in F1 and above, all monitors not listed below are
automatically set to Off.
Monitor DPMS mode
Dell Off
T8000 - Pioneer Suspend
T6000 - SAMPO Suspend
Maestro - Projection Design Off
T7000 - Sharp Off