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DPMS not turning off LCD screen - FreeBSD

I have a Sony SDM-HX93 LCD monitor running off an Nvidia GeForce FX 5500. I have the DPMS option set in my xorg configuration file, but while the screen turns off, the monitor never enters power off mode (it remains 'backlit'). Any suggestions where to look for the error? Thanks, -- Stephen J. Roznowski (net)...

  1. #1

    Default DPMS not turning off LCD screen

    I have a Sony SDM-HX93 LCD monitor running off an Nvidia GeForce FX
    5500.

    I have the DPMS option set in my xorg configuration file, but while
    the screen turns off, the monitor never enters power off mode (it
    remains 'backlit').

    Any suggestions where to look for the error?

    Thanks,
    --
    Stephen J. Roznowski (net)
    Stephen Guest

  2. #2

    Default Re: DPMS not turning off LCD screen

    On Wed, Mar 09, 2005 at 10:25:45PM -0500, Stephen J. Roznowski wrote: 

    What does xset say about dpms?

    You may have to tell xscreensaver or kdesktop specifically to use dpms
    in addition to the xorg.conf file.
     

    --
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    Loren Guest

  3. #3

    Default Re: DPMS not turning off LCD screen

    On Wed, 9 Mar 2005 22:25:45 -0500 (EST)
    "Stephen J. Roznowski" <net> wrote:
     

    Hello,

    The configuration file 'xorg.conf' can have the following settings (for
    more information see xorg.conf(5)):

    ================================================== ===========

    Section "ServerFlags"

    [...]

    Option "BlankTime" "3" # just blank the screen

    Option "StandbyTime" "5" # DPMS state "stand by"
    Option "SuspendTime" "5" # DPMS state "suspend"
    Option "OffTime" "5" # DPMS state "off"

    EndSection

    Section "Monitor"

    [...]

    Option "DPMS" # enable DPMS

    EndSection

    ================================================== ===========

    The first 4 option lines (in section "ServerFlags") contain the name of
    the option followed by the number of minutes of inactivity to wait
    before activate them.

    The last option (in section "Monitor") *must* be enabled for DPMS to
    work.

    In some monitors (like mine) all the DPMS states of inactivity are the
    same, that turn off the monitor. The "BlankTime" indicated the time to
    wait before displaying a black screen, not turning off (or suspend,
    etc.) the monitor, like DPMS states do.

    So im my monitor, after 3 mminutes of inactivity the screen will be
    blanked, then, if I do not do anything, 2 minutes after that the monitor
    will turn off.

    The commands to try them are:

    Try one DPMS state (choose one):

    xset dpms force (off|standby|suspend)

    Try the screen blank (sleep is required because when you press enter it
    starts, but when you release it, or it start repeating, it stops):

    xset s blank
    sleep 3 ; xset s activate

    Best Regards,
    Ale
    Alejandro Guest

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