Windows 10: Second Monitor Audio No Longer Detected

Windows 10For background, I removed my PC from my desk and brought it over to my Sony TV to play games on a bigger screen. Ive been using my TV as a main monitor for a while but recently purchased a super long HDMI so I can move my PC back to my desk.My PC has a display port and an HDMI port that ive been using exclusively for my TV. When my PC used to be at my desk it would connect using the display port for my main monitor. Now that ive moved it back to my desk and reconnected it to my monitor via display port, I also connected the HDMI to my TV and set up dual screen extended. The display

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Windows 10 no longer DETECTs the second display.

Windows 10 no longer DETECTs the second monitor on my surface pro.

It used to detect the Dell S2440L, but I moved locations and set the second monitor up again after it being disconnected for -1- month.

It no longer detects the second monitor. Also, the driver is not listed in Device Manager/Drivers list.

 

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.

 

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 It could be due to your video driver being outdated, incorrect or faulty.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.