P2412H in "entering power save mode" loop - Monitors Forum - Peripherals - Dell Community

P2412H in "entering power save mode" loop

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P2412H in "entering power save mode" loop

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Hi,

I have a Latitude E6420, hooked up to a P2412H monitor via a port replicator and DVI cable.

Whenever the Windows 7 power management "turns the display off", the monitor enters into power saving mode. However, it gets stuck in a loop, alternately turning the backlight off, then displaying "entering power save mode". The monitor power LED stays blue the whole time, and any presses to the monitor buttons displays a message about no input signal.

If the Latitude is actually put to sleep or hibernation, the display goes into power save mode properly, without the loop.

Any ideas for how to make it work properly? Right now I have to physically hit the display power button every time I walk away from my computer.

All Replies
  • Hi tsanga,

    Welcome to the Dell Community

    I understand that when the Windows 7 power management turns off the display, the monitor shows the message “Entering power save mode” in a loop. I would request to try these steps.

    1. Click “Start”>> Type “Device Manager” in Search Programs and Files text box>> Go the Device Manager>> Locate the Port Replicator Device >>Right Click and select “Properties”. In the Properties dialog, look for “Power Management” tab >> there are two options: - Allow this computer to turn off this device to save power. Allow this device to wake the computer.  Please ensure both of the options are not selected.

    2. If this does not help, please connect the monitor to the VGA port on the laptop without the port replicator and then observe it for some time.

    Please try these steps and let me know of the outcome.

    Glad to be of assistance

    Thanks,

    Manpreet

    Dell |Social Outreach Professional | Global Social Media Community

    You can reach us at http://en.community.dell.com/

    Thanks and Regards,
    Manpreet C
    #iworkfordell
    To know more about Dell’s products, services and drivers & downloads, please go to http://dell.to/YBlak6
  • Hi,

    Thank you for the response.

    1. I cannot find a port replicator device in Device Manager. What should I be looking for? I'm using the Dell E-Port Replicator.

    2. I'm not sure what you mean by item 2. I'm making a connection to the monitor with DVI, not USB. I don't have a DVI port on the laptop.

  • Hi  tsanga,

    Thank you for the response.

    I would request to remove the  port replicator and connect the monitor to the VGA port on the laptop  or  use an HDMI  to DVI adapter  and connect the monitor to the DVI adapter port and then observe the  Sleep behavior.

    Please try these steps and let me know of the outcome.

    Glad to be of assistance

    Thanks,

    Manpreet

    Dell |Social Outreach Professional | Global Social Media Community

    You can reach us at http://en.community.dell.com/

    Thanks and Regards,
    Manpreet C
    #iworkfordell
    To know more about Dell’s products, services and drivers & downloads, please go to http://dell.to/YBlak6
  • I am having the exact same issue. I am using the monitor on a Macbook Pro with a DisplayPort to DVI adapter. I was using a E2311H before and everything was fine. I just received my P2412H and power save mode never worked since. Any ideas?

  • I have now tried using the VGA port on the monitor.

    When plugged into the Dell E-Port Replicator VGA port, the monitor resolution is incorrectly reported as 1600x1200 (max) or 1366x768 (recommended). The monitor's native resolution of 1920x1080 is not even available as a choice. Although now the display goes into standby properly when the display blanks, the resolution issue is totally unacceptable.

    I don't know if the issue lies with the port replicator or the monitor (both Dell devices), but this is total <profanity removed> from Dell. Neither DVI nor VGA offers a workable solution for enterprise class products.

  • @tsanga I'm using the monitor with DVI and to me the resolution works just fine. However, I agree with you that it's total <profanity removed> from Dell ;) Also, I found this video :