Windows 10: My secondary display is not working after Win update.

I am using NVIDIA GeForce 1060 6 GB, Windows 10 Pro x64. I am working with dual Asus displays. After one of the Windows updates the second monitor went black. It is detected, the cursor enters the second screen but there is no display. I tried every possible solution; re-rolled the driver, uninstalled and installed it again, revert to Win basic display driver, uninstalled the Win updates and installed them again, played around the refreshing speed, resolution and many more troubleshooting listed in the Internet, nothing worked.

:)

 

Windows 10 1909 Causes Secondary Hard Drive to not be Recognized

Installing the Windows 10 1909 Update causes my secondary hard drive to not be recognized.

Steps to confirm issue:

• Secondary drive not visible in Windows Explorer
• Secondary drive not visible in device manager
• Secondary drive not visible in disk manager

Steps to replicate issue:

• Installing 1909 update

Steps to resolve issue:

• Uninstall 1909 update

Since updates can only be delayed for so long, an actual fix would be appreciated.

 

Second Display Working But Not Available

Weird problem, it's probably a driver issue but I'm relatively new to Win 10 (meh) so I'm asking before doing. I have 2 displays, my main display, identified as display 2 is a displayport connection, while my secondary display identified as display 1 is on a HDMI to VGA adapter. All of this was configured and working the other day. It appears, but I'm not 100 percent sure, that when I updated my Nvidia graphics driver that my secondary display stopped working. I enable/disable the second display regularly so I can't be 100 percent sure when the issue started. I also just uninstalled and then reinstalled Nvidia GeForce Experience not wanting to start after the Win10 update from Win7, though it's likely this didn't have anything to do with the problem.

Anyways, when I start my computer, the Post, UEFI/BIOS and pre login Windows starting screen all appear on my secondary display so I know it's not a hardware issue. When the Windows login screen appears display is switched to my main display and the secondary goes to sleep. When I go into my Nvidia control panel to enable the secondary display, under set up multiple monitors, I see both my displays listed. My main display is listed with a checked checkbox next to it. My secondary display is listed with an unchecked checkbox next to it. Though not greyed out, the checkbox for the secondary display cannot be checked. When I do a display detect in Nvidia control panel it still shows both displays listed.

Now, if I go to my Win10 device manager, under monitors, only my main display is listed. If I do a detect displays in Win10 device manager it says no new displayed detected. This was all working fine the other day, don't know if it's a Windows update that broke it, the latest Nvidia driver or some setting I changed. I had been playing with the refresh rate on the main monitor as well as the display specific setting/enable settings for the selected display model under Set up G-SYNC. I've tried switching these setting back and forth but it has no effect on the detection of the secondary display. Thanks in advance.

 

Secondary display not working after update

Hello,



Thank you for writing to Microsoft Community Forums.



The issue might be that the display drivers are not getting recognized properly.



I suggest you to update the display drivers on your PC.
You can follow the steps on the article to
update drivers on windows 10.



Hope it helps.

Let us know if you got the help you needed by clicking ‘Yes’ or ‘No’.



Prakhar Khare

Microsoft Community – Moderator