Windows 10: Suddenly, Computer not detecting second monitor

Discus and support Suddenly, Computer not detecting second monitor in Windows 10 Gaming to solve the problem; Laptop: ASUS ROG purchase 2023Graphics AMD RADEON just went to website to update drivers no change restarted laptopAMD RYZEN Good Series 9 - no clue... Discussion in 'Windows 10 Gaming' started by Miam185, Jul 1, 2025 at 6:47 PM.

  1. Miam185 Win User

    Suddenly, Computer not detecting second monitor


    Laptop: ASUS ROG purchase 2023Graphics AMD RADEON just went to website to update drivers no change restarted laptopAMD RYZEN Good Series 9 - no clue what this isWas using laptop when my second monitor went black a few weeks ago. I have changed out cables, changed monitors, and crazy enough changed laptops. So, I am asking, what am I doing wrong?I go to system to detect monitors and nothing.I feel like an idiot, I have 4 monitors at my office and cannot connect via my HDMI to Display, or to the DVI this was the original connectionsHelp me...Mam

    :)
     

  2. windows 11 cannot detect my second monitor

    Windows 11 cannot detect my second monitor. Help. I did all the suggested troubleshooting steps but nothing seems to work.
     
    Janet Brandares, Jul 1, 2025 at 6:51 PM
    #2
  3. Computer not detecting the second monitor

    Hello,

    I have a Dell all in one desktop model- Inspiron 24 Model 3459, however, it is not detecting my second monitor. I have attempted to detect automatically as well as manually, updated the driver, uninstalled
    and reinstalled the driver. However, my computer is still not detecting the second monitor. Please help!!!
     
  4. Suddenly, Computer not detecting second monitor

    Second monitor not detected

    Hello,

    May we know if you've already tried the suggestion provided by Robert Aldwinckle on forums on this

    thread
    ?

    If Windows can't detect your second monitor, it's usually a driver problem. It could be due to your video driver being outdated, incorrect or faulty. It's also possible that your monitor driver is causing the problem.

    Since the issue occurred after the latest update, it's possible that the video or monitor drivers require an update. Try looking for the updated version of the drivers on the device manufacturer's website and follow their instructions.

    If the issue persists, try to roll back the drivers to the last good configuration. To do that, you may follow these steps:

    • Right-click the Start button and select Device Manager.
    • Right-click your device driver, select Properties, and browse to the
      Driver tab.
    • Press the Roll Back Driver option if available, and Windows 10 will begin the process.

    Let us know how it turns out.
     
Thema:

Suddenly, Computer not detecting second monitor

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