External Monitor shuts off when lid closed

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Laptop computer Forums (Audio, General Hardware, Video)

External Monitor shuts off when lid closed

  • I have a Latitude C400 mated to a port replicator with an external display.  When I close the lid of the notebook the external display turns off; using fn + f8 doesn't seem to help.  It didn't  use to work this way: I could close the notebook and the external display continued to work.

    Thanks, Mike

  • RMG,

    Thank you for using the Dell Community Forum.
    The following may help.
    ---------------------------------------------------------------------
    Question:
    How do I keep my external monitor from turning off when I close the LCD lid?

    Answer:
    Go into Control Panel, Power, look for a setting that states:
    "When I close the lid of my portable computer"
    Set this setting to "Do Nothing".
    Click Apply and Ok.

    --or--

    Start - Settings - Control Panel - Power Options - Advanced tab - Power button box - When I close the lid of my portable computer - set it to Standby
    ---------------------------------------------------------------------
  • Hi Carol,

    The power setting your recommend is and has been the one in use.; the setting is set to None for action when the lid is closed.  Note that the computer does not turn off when I close the lid, only the external (and internal) display.

    Thanks, Mike

  • RMG,

    You may want to try uninstalling and reloading the latest video drivers.
    As well as upgrading to the latest bios revision.