No signal to external monitor. All drivers uninstalled and updated.  

  1. Posts : 6
    Windows 10 Home

    No signal to external monitor. All drivers uninstalled and updated.

    My external monitor has recently lost the signal from my laptop and I've tried every bit of advice out there to try to get it back, with no success. I have a Dell XPS 15 9550 laptop, and an old Dell S2409W external monitor. It was working fine via a DVI-D cable, but lost it's connectivity at some point when I was uninstalling / updating drivers for a Zebra LP2844 printer; as part of my troubleshooting the printer, I deleted a few drivers that were showing errors in Device Manager (stupidly without noting what I uninstalled). Once the dust cleared, the monitor no longer works.

    Details of what I have tried:
    Currently, there are no errors or conflicts displayed in Device Manager. It only shows a Generic PnP Monitor.

    I have replaced the cable, no effect. I have tried an HDMI cable, but the monitor is locked on DVI-D input, and I cannot unlock the menu to select another input. I've tried unplugging the monitor and holding the power button down for 15+ seconds for a hard reboot. No effect.

    I have uninstalled all monitor drivers, as well as NVidia, run both Dell and Intel driver updates. I have installed the specific Dell S2409 driver onto the Generic PnP driver. None of these has had any effect.

    The monitor does power on, and the display works - it just shows "Entering Power Save Mode" when plugged into the laptop, then goes dark. I don't have another machine with a graphics port with which to test it unfortunately.

    I've run sfc /scannow, I've run Windows Update.

    I'm at the point where I'm considering a complete rebuild, but would love to avoid that if anyone has any further advice to try.

      My Computer

  2. Posts : 29,370
    Windows 10 Pro x64 Version 22H2

    Hi alexso

    I think I would DDU to ensure a complete uninstall of drivers and software. Handles nVidia, AMD and Intel.

    Disconnect monitor while running and re-installing.

    Once everything reinstall connect monitor.

    I would encourage you to look in Macrium Reflect, free, reliable and used widely by members. Restoring a system image is way less work than a clean install.

    Backup and Restore with Macrium Reflect

    Tutorial is a little out of date but gives you the basics.

      My Computer

  3. Posts : 6
    Windows 10 Home
    Thread Starter

    Thanks Ken. Unfortunately that didn't do it either. I uninstalled both Nvidia and Intel with DDU, then reinstalled both, as well as the monitor-specific driver and it's still not getting a signal.
      My Computer

  4. Posts : 29,370
    Windows 10 Pro x64 Version 22H2

    I wonder if the the port is glitched or its the Windows.

    If you boot with Kyhi's recovery disk does the second monitor get a signal.

    Windows 10 Recovery Tools - Bootable Rescue Disk

    I think your battery is enclosed in laptop, correct?

    If battery is removal I would unplug, remove battery, hold power switch for 30 seconds, let sit for 5 minutes, reassemble and test.
      My Computer

  5. Posts : 6
    Windows 10 Home
    Thread Starter

    I tried booting with Kyhi's recovery disk and there was no signal as well. The battery is enclosed, though I could unscrew the back and get to it if there's a chance that might help.
      My Computer

  6. Posts : 9,610
    Mac OS Catalina

    Sounds like the monitor has finally bit the bullet. It is a nine year old monitor. Do not worry about the Laptop, since it is not the problem.
      My Computer

  7. Posts : 29,370
    Windows 10 Pro x64 Version 22H2

    Could very well be. Can you connect to TV to see if you are getting output.
      My Computer


  Related Discussions
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 01:38.
Find Us

Windows 10 Forums