Fujitsu stylistic lt, Reference Manual

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Power States and State Transitions 6-3
Power States and State Transitions 6
The system manages power consumption by performing transitions between system power states, or
modes. State transitions can be triggered by timeouts configured in the BIOS, and other types of system
activity. Figure 6-1 shows system power states, transition paths and some typical events that trigger a
transition from one state to the next. You can configure the pen tablet to utilize some or all of these states
by setting power management options in the BIOS. Table 6-2 describes each power state. These states,
and BIOS options that affect them, are also described in further detail in “Power Management States and
BIOS Configuration Options” on page 6-5.
Figure 6-1 Power Management State Transitions
OFF
MODE
FULLY
ON
MODE
SUSPEND
MODE
STANDBY
MODE
IDLE
MODE
Suspend/Resume
button pressed
Suspend/Resume
button pressed
Resume on Time occurs
Resume On Modem Ring
Suspend request
Critically Low Battery
Suspend/Resume pressed
Suspend Timeout
Suspend Timeout
Suspend request
System activity
(interrupt)
Standby timeout
occurs
System activity
(interrupt)
Idle Mode
timeout occurs
OS Shutdown
Suspend/Resume button
pressed (if Power On/Off
selected in BIOS)
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