Windows 10: Second monitor appears pixelated sometimes

Before we get started, here might be some setup information that may be worth noting. My primary monitor is a 1080p, 1920 x 1080 (native) using an HDMI to DVI. My secondary monitor is a SONY TV 1360 x 768 (native) using an HDMI. Both are connected to my graphics card and not the motherboard. I have always had this setup but I have not always had this issue.

Preforming the following actions may cause my second monitor to appear pixelated.

• Getting a web browser out of maximized mode by click dragging the window or using the restore button
• Using full screen on the secondary monitor
• Dragging a window into the second monitor, sometimes

In order to temporarily solve this issue I must apply a change to any display using the Nvidia Control Panel. Using the Windows display settings to apply a change does not always fix the issue. Also note that after the second monitor goes pixelated, my computer does not detect a change in any display's resolution settings.

So far I have tried the following fixes to no avail

• Keeping display drivers up to date
• Using a DDU to wipe display drivers clean and start anew
• Using the Hardware and Devices troubleshooter

I have tried to use capture software to screenshot the pixelation but it can not see it. I have to use a camera to show what it looks like instead.
Before:



After:




Capture software is not capable of detecting the pixelation so I have recreated what it looks like on screen. Use this as reverence if the pictures look bad.
Before:



After:




:)

 

Second monitor screen resolution problem

Hi,

For us to properly isolate the issue with your second monitor screen resolution, we would like to know the following:

• 
  Were there any changes made on your computer prior to the issue (e.g., updates, software installation)?
  
• 
  When did the issue first begin?
  
• 
  To make sure that we have not missed on anything, what troubleshooting steps have you done so far?
  

In the meantime, we suggest that you try resetting your monitor settings, and check if the issue still persists. You may refer to your monitor on how to reset it.

We look forward to your response.

 

Issues while installing a second monitor in Windows 10

Really? I get a canned answer and nothing else? I posted that I had tried everything that I could find posted online. I did read the post that Andre suggested multiple times prior to posting this request for help. None of it helped.

My computer does not recognize that there is a second monitor is plugged in. The small step of changing the settings so I can put stuff on the second monitor ISN'T the issue. I am not that dumb. in the device manager there is only the single monitor listed
at one point there was a unknown device listed but my computer did not know if it was a monitor or a printer.

There has to be someone out there that knows how to fix this

Please Help

 

issue with second monitor

Hi,

Thank you for posting your query in Microsoft Community.

I understand the inconvenience caused. I will be glad to assist you with this.

I would suggest you to download the display driver from the manufacturer's website. If there are no driver for windows 10, download the latest driver and install it in compatibility mode by following the steps below:

After you have downloaded the driver:



a) Right-click on the setup file of the driver and select "Properties".

b) Select "Compatibility" Tab.

c) Place a check mark next to "Run this program in Compatibility mode" and select the

appropriate operating system from the drop down list.

d) Let the driver install and then check the functionality

I would also suggest you to refer to the link below for steps to set up dual monitor in your system.

Connect a second monitor or projector (Applies to windows 10)

You can also refer to the suggestion by Karthik from this link
for more information.

Hope this helps. Do let us know if you need further assistance. We will be glad to help.