System Controls; Buttons; System Status Indicators - Compal JHT01 Service Manual

2.

System Controls

2.1

Buttons

2.1.1 Power Button
The activity of the power button is as follows:
• If system is Off/Hibernate: System will be turned on while Power switch is
depressed by more than 100 ms.
• If system is in Standby state: System will resume while Power switch is
depressed by more than 100 ms.
• If system on with legacy mode: depress this button will turn off power.
If system is running in ACPI OS, the power button acts as the sleep button, and
let OS controls the policy of power button, which is defined in Power Option
under the OS.
2.1.2 Power Button Over-ride
• Holding down the Power Button for 4 seconds will cause an unconditional
transfer to the off state without notifying the operating system.
2.1.3 Lid switch
If the system is running under legacy mode:
• Closing the lid will turn off LCD backlight.
If the system is running under ACPI mode:
• The operating system will determine what action to take when the lid is
opened and closed.
The function of lid switch will follow the OS setting in power management
(Nothing, Standby or Hibernate). If nothing, the backlight must turn off when the
lid is closed.
2.2

System status indicators

Please refer to Keyboard BIOS specification.
JHT01 Service Manual
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