Turn off display (dell latitude)



  • Hi,

    I need help in turning off the laptop monitor to save the power. I do not see the acpi_video drivers installed with it. Do I need acpi_video drivers. If so how to do I load it. Here is my sysctl output. I do not see hw.acpi.video objects.

    [2.2-RELEASE][admin@RNGateway.home]/root: sysctl hw.acpi
    hw.acpi.supported_sleep_state: S3 S4 S5
    hw.acpi.power_button_state: S5
    hw.acpi.sleep_button_state: S3
    hw.acpi.lid_switch_state: NONE
    hw.acpi.standby_state: NONE
    hw.acpi.suspend_state: S3
    hw.acpi.sleep_delay: 1
    hw.acpi.s4bios: 1
    hw.acpi.verbose: 0
    hw.acpi.disable_on_reboot: 0
    hw.acpi.handle_reboot: 0
    hw.acpi.reset_video: 0
    hw.acpi.cpu.cx_lowest: C1
    hw.acpi.acline: 1
    hw.acpi.battery.life: 100
    hw.acpi.battery.time: -1
    hw.acpi.battery.state: 0
    hw.acpi.battery.units: 2
    hw.acpi.battery.info_expire: 5
    hw.acpi.thermal.min_runtime: 0
    hw.acpi.thermal.polling_rate: 10
    hw.acpi.thermal.user_override: 0
    hw.acpi.thermal.tz0.temperature: 52.5C
    hw.acpi.thermal.tz0.active: -1
    hw.acpi.thermal.tz0.passive_cooling: 0
    hw.acpi.thermal.tz0.thermal_flags: 0
    hw.acpi.thermal.tz0._PSV: -1
    hw.acpi.thermal.tz0._HOT: -1
    hw.acpi.thermal.tz0._CRT: 126.0C
    hw.acpi.thermal.tz0._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
    hw.acpi.thermal.tz0._TC1: -1
    hw.acpi.thermal.tz0._TC2: -1
    hw.acpi.thermal.tz0._TSP: -1


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