Windows 10: Display port problem after last windows updates

hello after the last windows update of the 16/03/2021 my displayport start of fail and appear a message in the monitor that says "displayport not signal" each time when i open a game or when i open virtual machines or when im in the desktop, i make all that i find here about similar problems for try to fix and nothings works a my last try is a new instalation of windows 10 thinking that maybe will fix the problem but nothing i really need help pls thanks


Mainboard Asus SABERTOOTH Z97 MARK 1/ USB 3.1

I7 4790

16 GB. RAM

Asus Strix Nvidia Geforce GTX 970

Monitor Asus ROG SWIFT PG279Q

:)

 

HDMI port not installed. Recent updates may be the problem.

Hi GeraldParkhurst,

Thank you for writing to Microsoft Community Forums.

Could you please help me with the below information:

1. What is the make and model of the computer?
   
2. Which version of Windows you are using on both the computers? (To check, type: winver in start menu and hit enter.)
   
3. Do you see any error messages in device manager after connecting the HDMI cable?
   

This might have occurred due to some hardware conflicts or driver incompatibility issues. This happens if monitor isn’t getting any input from the currently selected source. To resolve this issue, I would suggest you to follow the
steps mentioned below.

Method 1: Update drivers.

1. Make sure that the cable are connected with correct ends, output port of the laptop and the input port of the TV/External
monitor are connected to the right port.

2. While the cable is connected
open device manager. The problem may occur by the faulty chipset drivers and graphics drivers. Try to update the drivers and check for the issue.

• • Press windows and R key together at the keyboard and type:
    devmgmt.msc
    
  • If you see any display drivers with yellow exclamation sign,
    Update the drivers.
    
  • Reboot the computer once and check.
    

Method 2: Change display settings.

1. Press Windows and P key on your keyboard together. You will see a Project option on the right side of the screen.
2. Select Duplicate or Extend (depends on your requirement) and check.
3. If it didn’t work, try to
   Change screen resolution and try step 1 and 2
   again.

Method 3: Disconnect and reconnect.

1. Unplug all the TV/monitor cables from the HDMI port.
   
2. Unplug the power cable of external monitor or TV for some time.
   
3. Plug the power cable back to the computer.
   
4. Plug in all the HDMI cables to the computer /TV.
   
5. Turn on the device and try Method 2.
   

Hope it helps.

Roohi Taj S

Microsoft Community - Moderator

 

Surface Pro 2 Windows 10 - no sound on display port and slow video

Hi Chris,

Thank you for posting your query in Microsoft Community.

I can imagine the inconvenience you have experienced. I will definitely help you with this.

I would suggest you to run “Hardware and Devices” troubleshooter to diagnose the exact issue.

Follow these steps to run the troubleshooter:

• Press “Windows key + W”.
• Type “Troubleshooting” without quotes in the Search box and hit enter.
• Select “Hardware and Sound” from the Troubleshooter Window.
• Select “Hardware and Devices” under Devices option.
• Follow the On Screen instructions.

If doesn't work, I suggest you to update the sound and display drivers from device manager and check.

Please follow the below steps:

• Press Windows Key + X key and click
  Device Manager.
• Expand ‘Display Adapters’.
  
• Right-click on the Display Adapter listed and click on ‘Update Driver Software’.
• Select the option to automatically search for the updated driver software.
• Restart the computer after its updated and verify.
• Follow the same steps to update sound device.

I hope this information helps. Please do let us know if you need any further assistance.

Thank You.

 

Windows Upgrade and display problems

Hello Mark,

We realize the inconvenience you are experiencing with display after upgrading to Windows 10. We will certainly help you.

This issue generally occurs due to corrupted or faulty device drivers on your system. Let's try updating the drivers and check if it helps to resolve the issue:

Step 1: I would suggest you to update your graphic card drivers and check if it helps.

You can update drivers from the Device Manager.

• • Right click on Start Menu and click on Device manager.
    
  • Select and expand Display adapter.
  • Right click on the Display device and select Update driver.

Step 2: If the issue still persists,
uninstall and reinstall Graphic drivers.

• Press Windows key + R key.
• Type devmgmt.msc and press
  Enter.
• In device manager go to display adapter.
• Right click and uninstall.

After you uninstall the drives, I suggest you to reinstall the latest drivers from the manufacturing website and check.

For reference:

How
to: Install and Update drivers in Windows 10

Let us know the result. We will be happy to assist you further.

Thank you.