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Dell U2414H Monitor: PC stopped recognizing it - Showing lock

Discussion in 'Monitor' started by mikehende, Jul 2, 2023.

  1. mikehende

    mikehende Senior Member

    Joined:
    Apr 5, 2005
    Messages:
    324
    Location:
    NYC
    Operating System:
    Windows 8
    Hey guys, all of a sudden, any pc or laptop here stopped recognizing this monitor. Whenever I turn the monitor on it always shows 'No HDMI CABLE' and same deal with Display Port connection. Also shows 'The display will go into Power Save mode in 5 minutes which it does and if if press the Monitor's Menu button, it shows the 'lock' icon.

    I tried doing whatever I could find on the net and from this Dell resource here:

    Turn off the monitor
    * Disconnect the power cord from the rear of the monitor
    * Press the monitor power button for 10 seconds
    * Reconnect the power cord to the rear of the monitor
    * Turn on the monitor
    * Press and hold the button beside the power button for 10 seconds

    https://www.dell.com/community/Monitors/U2414H-monitor-locked-unable-to-unlock/td-p/4354956

    Any ideas please?
     
    mikehende, Jul 2, 2023
    #1
  3. Tony D

    Tony D Administrator Administrator

    Joined:
    Sep 25, 2009
    Messages:
    5,112
    Location:
    SE Pennsylvania, USA
    Operating System:
    Windows XP Professional
    Change the HDMI cable to a known good working one.

    If that doesn't fix it, it probably hosed. You could search for a circuit board replacement. That might fix it.
     
    Tony D, Jul 2, 2023
    #2
    IJAC likes this.
  4. mikehende

    mikehende Senior Member

    Joined:
    Apr 5, 2005
    Messages:
    324
    Location:
    NYC
    Operating System:
    Windows 8
    Sorry I should have mentioned we had tried different cables and all 4 ports both Displays and HDMI's so yes then I will throw out, appreciate the help, have a safe and enjoyable holiday!
     
    mikehende, Jul 2, 2023
    #3
  5. Tony D

    Tony D Administrator Administrator

    Joined:
    Sep 25, 2009
    Messages:
    5,112
    Location:
    SE Pennsylvania, USA
    Operating System:
    Windows XP Professional
    It's pretty rare for a monitor to quit, but it happens. I did a search for Dell U2414H board replacement. The boards are out there. You can take a chance that there's a bad board in the monitor and replace the board.
     
    Tony D, Jul 2, 2023
    #4
    IJAC likes this.

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