Windows 10: Computer won't detect monitor after latest Windows 10 update

Windows applied a new update this morning and since then one of my monitors isn't working. If I have it plugged in by itself it stays active (the light stays green) and the loading screen appears for a second, but then the screen turns black even though Windows is obviously running. The moment I plug in my second monitor the login screen appears on that screen as normal. If I have both plugged in at once the first monitor goes into idle mode, as in the light turns yellow.

This has happened before after an update and I managed to fix it then, but I'm not sure how. I fiddled with a bunch of things and then rebooted and it suddenly worked. That was a while ago and I've forgotten what exactly I did, unfortunately.

This time I've tried a number of things. I tried unplugging the monitor from the computer and plugging it back in, and I tried a different DVI port but neither worked. I tried updating the graphics card driver, disabling the graphics card, reinstalling it, nothing. I checked to see if I could roll back the driver to an earlier installation but the option was greyed out. I tried changing the screen refresh rate from 60 to 59 but that didn't help. I haven't tried going back to a restore point before the latest Windows update because I didn't try that last time so I figure this can be fixed without resorting to that.


Any suggestions would be welcome. Thanks.

:)

 

after latest update my phone lost his network and won t work...several times restart by himself...also wi-fi tile won t work

after latest update my phone lost his network and won t work...several times restart by himself...also wi-fi tile won t work

 

Windows 10 Not Detecting Second Monitor

Hi Zamajam,

Thank you for posting your query in Microsoft Community.

I suggest you to follow these methods and check if it helps.

Method 1: Update display adapter driver.



Step 1: Check for the latest driver update through Windows Updates.

• At the Start screen, type Windows Update.
• Click or tap Settings on the right side of the screen, and then select Install optional updates from the left results.
• When the Windows Update control panel opens, click on “Check for Updates” on the top left corner to receive a fresh list of updates.

Incompatible or not properly installed graphics card drivers are the most common cause of this issue.



Step 2: Follow the steps below to update the display drivers.

• Press Windows + X key on the keyboard.
• Go to device manager.
• Right-click your display/graphic & video device.
• Click Update Driver Software and then follow the steps in the wizard that appears.

Restart the computer and check.

If the issue persists, follow method 2.



Method 2: Check in compatibility mode.



Download the display drivers from the Manufacture and follow these steps to install the drivers in compatibility mode and check if that helps.

a. Download the driver from the manufacturer’s website.

b. Right-click on the driver setup file and click on ‘properties’.

c. Click on the ‘compatibility’ tab and check the box ‘Run this program in compatibility mode for’ and select Windows 8 operating system from the drop down menu and proceed with the installation.

d. Once this is done, restart the computer and check if the issue persists.

You may also refer: Make older programs compatible with this version
of Windows (Steps applies to Windows 10)



Additional Information:

Connect a second monitor or projector

http://windows.microsoft.com/en-US/windows-8/how-connect-multiple-monitors

(Also holds good for Windows 10)

I hope this information helps.

Please do let us know if you need any further assistance.

Thank you

 

Windows 10 not detecting all monitors

Hi,

Thank you for posting the query on Microsoft Community.

I appreciate your interest on Windows 10.

This issue can be caused if the latest drivers are not installed on your computer.

I suggest you to follow the method below:

Method

If there no updated drivers available on the computer manufacturer’s (Iiyama T2250MTS )website, then try installing it in
Windows 7 compatibility mode. Compatibility mode runs the program using settings from a previous version of Windows. Follow these steps to install the drivers in compatibility mode and check if that helps.

• Download the driver from the manufacturer’s website.

• Right-click on the driver setup file and click on ‘Properties’.
• Click on the ‘Compatibility’ tab and check the box
  ‘Run this program in compatibility mode for’ and select Windows 7 operating system from the drop down menu and proceed with the installation. Once this is done, restart the computer and check if the issue persists.

Refer the Wiki article by Andre Da Costa for more information on add and use a second monitor with Windows 10:

How to add multiple monitors to your Windows 10 PC



Please get back to us with updated status, we will be happy to assist you further.