[Solved] “Make This My Main Display” Greyed Out

Generally speaking, if you notice “Make this my main display” greyed out while tweaking the display setting of your computer, you must have skipped some steps. The best solution is to disconnect and reconnect the displays then determine whether the issue persists. In addition to that, you should consider updating the graphics driver, downloading and installing Windows updates, etc. Continue reading to get the most out of the displays of your PC. 

Causes

Process

Overall, it’s possible to connect Windows computers to more than one display but to get the desired result, you need to go through every step. If you skip steps, you may run into issues and “Make this my main display” greyed out is one of them. Unless you take action, there is no way you could put your displays to good use. On the bright side, it takes little time and effort to correct mistakes during the setup of displays on Windows. 

Driver

Unable to recall the last time you updated the graphics driver of your computer? Then it’s possible that the driver is out-of-date. The obsolescence of the graphics driver could mess up many display settings including “Make this my main display”.

Windows 

In layman’s terms, if you neglect Windows updates, it’s only a matter of time before your computer malfunctions. Because of that, it’s a good idea to give Windows some thought once it comes to Make this my main display” greyed out.

Solutions

Solution 1: Disconnect And Reconnect The Displays

  • Step 1: Disconnect the displays, wait for a moment and reconnect them. 
  • Step 2: Turn on all the displays, press Windows + I to open Settings, select System and choose Display.
  • Step 3: Hit Detect under the Multiple displays.
  • Step 4: Click the monitor picture with a rectangle box around it and it should turn orange.
  • Step 5: Proceed to check the “Make this my main display” checkbox, choose Apply and select Ok. 

Solution 2: Update The Graphics Driver

  • Step 1: Go to Search bar, type devmgmt.msc and press Enter to open Device Manager. 
  • Step 2: Expand Display adapters, right-click your graphics card and pick Update driver.
  • Step 3: Follow onscreen instructions.
  • Step 4: Restart your computer.
  • Step 5: When the screen comes back on, determine whether the issue persists. 

Note: Depending on the situation, you have to uninstall and reinstall the graphics driver. 

  • Step 1: Go to Search bar, type devmgmt.msc and press Enter to open Device Manager. 
  • Step 2: Expand Display adapters, right-click your graphics card and pick Properties. 
  • Step 3: Check the checkbox next to Delete the driver software for this device before hitting OK.
  • Step 4: Restart your computer. 
  • Step 5: See how things turn out. 

Solution 3: Update Windows

  • Step 1: Press Windows + I to open Settings, select Update & Security and choose Check for updates.
  • Step 2: If an update is available, allow Windows to download and install it.
  • Step 3: As soon as the update completes, restart your computer.

FAQs

What are the Display modes on Windows 10?

Windows 10 offers four modes: Extend, Duplicate, Second screen only and PC screen only. 

  • The Extend mode makes your displays work together to give you more workspace. This mode is best for tasks requiring you to use two or more displays simultaneously, such as when editing a document or giving a presentation. 
  • The Duplicate mode makes your display shows the same content. This mode is best when you want your displays to show the same thing, such as watching a movie or giving a presentation to a large group. 
  • The Second Screen only mode turns off your main display and shows content only on your secondary display. This mode is best for when you want to focus on a single task, such as when you’re working on a project or playing a game.
  • The PC screen only mode is the opposite of the Second Screen only mode: it turns off secondary displays and shows content only on your primary display. This mode is best if you only need to use your computer casually. 

How many monitors can a PC support?

Windows 10 can support up to eight displays at the same time. However, your computer’s graphics card will determine how many displays you can use. If you have a lower-end graphics card, you may only be able to use two or three different displays. On the other hand, if you have a high-end graphics card, you may be able to use more.

Do Multiple displays affect performance?

The answer to this question depends on the type and quality of your computer’s graphics card. If you use a low-quality graphics driver, multiple displays will affect your computer’s performance to a certain extent.

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