Fix VirtualBox macOS High Sierra Screen Resolution (1920×1080 – 4K – 5K)

Fix VirtualBox macOS High Sierra Screen Resolution (1920x1080 - 4K - 5K)

In this article, I am going to show you how to fix VirtualBox macOS High Sierra screen resolution. Also, I want to remember that it works for macOS Sierra too, so if you have macOS running 10.12 or higher then no worries the steps below will be the same. Before we get started, you should note that this method doesn’t work for all the resolutions out there. Some resolutions are used by most people around the world like 1920×1080, and this article works on most computers. Some of our users test these methods, and you can also give a try. If it worked for you, then let us know in the comment section below for other folks to help them out just like you.

Related: How to install macOS High Sierra on VirtualBox on Windows 10

Fix VirtualBox macOS High Sierra Screen Resolution

It’s a common problem for those who installed macOS Sierra or macOS High Sierra on Virtualbox on Windows. Right after the installation part finishes, then you will notice that your resolution is not fitting your screen on the host. The default VirtualBox resolution for macOS 10 is 1024×768, so to fix this just follow step by step guide but before that the following resolutions has been tested and works with this method.

  • 1280×720   (HD)
  • 1920×1080 (FHD)
  • 2560×1440 (QHD)
  • 2048×1080 (2K)
  • 3840×2160 (4K)
  • 5120×2880 (5K)

Note: most of you might have the 1366×768 resolution and to mention here that we have tested this resolution, but we had no success. If the method below worked for you, then please let us know in the comment section below, it would help lots of other guys.

Step #1. Download this Virtualbox screen resolution code for macOS Sierra and High Sierra from the link below.

Step #2. Open the code with Notepad and replace it that is written as “Type Your VM Name Here” to your macOS Virtual machine name. Make sure it’s the same otherwise it won’t work.

Fix VirtualBox macOS High Sierra Screen Resolution (1920x1080 - 4K - 5K)

Edit the Code

Step #3. Now at the end of the code, type your own screen resolution instead of HxV. For example, if your screen resolution is 1920×1080, then type this at the end of the code.

Fix VirtualBox macOS High Sierra Screen Resolution (1920x1080 - 4K - 5K)

Add your Screen Resolution to the Code

Step #4. Now, open the command prompt by pressing Windows button + X then click on Command Prompt (Admin).

How to Fix macOS Sierra Screen Resolution on VirtualBox?

Run CMD

Step #5. Now, you have to select VirtualBox path by changing the directory command, so copy & paste it to Command Prompt (CMD) then hit enter.

Fix VirtualBox macOS High Sierra Screen Resolution (1920x1080 - 4K - 5K)

Type the Change Directory Code

Step #6. This time copy & paste the fix screen resolution code to Command Prompt (CMD) then hit enter.

Fix VirtualBox macOS High Sierra Screen Resolution (1920x1080 - 4K - 5K)

Apply the Change Resolution Code

Step #7. All done, now just play the macOS Virtual Machine to check if it worked or not.

Fix VirtualBox macOS High Sierra Screen Resolution (1920x1080 - 4K - 5K)

Play the macOS Virtual Machine

Step #8. Go to About This Mac then click on Displays next to the overview tab to check it.

Fix VirtualBox macOS High Sierra Screen Resolution (1920x1080 - 4K - 5K)

Resolution Changed to FullHD

Troubleshooting

Note: Your VirtualBox should be updated to the latest version to get the most accurate result possible from this guide.

The step below has been proven to work because we have received lots of feedback from our visitors saying that this method worked for them. To avoid any error, make sure you replaced the exact name of your virtual machine in the code (Step #2.). If it didn’t work for you, then I suggest you uninstall VirtualBox then reinstall the latest version of Virtualbox. Then it should work for you because it has also been tested and it works for some folks. Also to mention here, we have another method that works for everybody so if it didn’t work for you, so make sure to check it out.

Another Method: How to Fix macOS High Sierra and macOS Sierra Screen Resolution on VirtualBox.

That’s all for this article, how to fix Virtualbox macOS High Sierra screen resolution. If this method work for you then don’t forget to share it with us in the comment section below and it will help other guys also. Thanks for being with us and hope that you found this guide helpful. We’re waiting for your feedback and suggestion in the comment section below.

I am the CEO of wikigain.com and a network instructor. Here is my online pictorial notebook. I would like to write and share my experience through this website for computer enthusiasts, how to guides and technology geeks.

45 Comments

  1. Tits Reply

    VBoxManage setextradata “mac” “CustomVideoMode1” “1366x768x32”

    VBoxManage setextradata “mac” “VBoxInternal2/EfiGraphicsResolution” “1366×768

    1. Ramiro Reply

      Hi Faiz
      Thank you very much for your useful article.
      Host: Ubuntu 16.04.5
      Guest: Mac OS X Sierra 10.12
      VM: VirtualBox
      Display: 24″
      I successfully tested 1440×900 and 1600×900. I choose 1600×900. Since my display has 1920×1080 resolution I did not test it because I do not want to use both the horizontal and vertical scroll bars as I observe in your picture of Step 8.
      Thanks a lot Faiz.

    2. Ramiro Reply

      Hi Faiz
      Thank you very much for your useful article.
      Host: Ubuntu 16.04.5
      Guest: Mac OS X Sierra 10.12
      VM: VirtualBox
      Display: 24″ 1920×1080
      I successfully tested 1440×900 and 1600×900. I keep 1600×900. Since my display has 1920×1080 resolution I did not test it because I do not want to use both the horizontal and vertical scroll bars as I observed in your picture of Step 8.
      Thanks a lot Faiz.

  2. pummkin Reply

    Thank you! It works now on my Dell XPS13 9360, after Windows killed it on the last update! Can even generate a 3200×1800 res but it was way too big of a window! Reverted to 2560×1440 and put on Scaled Mode to fill the entire screen. Only trouble now is the fonts are extremely tiny despite putting setting of Icons and Font to Large. Have to use the Zoom in feature by pressing Alt+Windows+=. Thank you again!

  3. Jerry Segers, Jr. Reply

    I ran into one “gotcha” either your web server or my browser or something substitutes “smart quotes” for standard ones, so it said no such VM name or something like that (on linux) replacing the quotes around the vm name fixed it.

  4. D. Oliveira Reply

    The resolution works, but MAC OS does not recognize all allocated video memory, I configured 128MB in VirtualBox but it only recognizes 4MB.
    Does anyone know how to solve this?

  5. Ibrahim Reply

    Its not working for 1366×768.
    but ok with for 1280×720. I have to use this one.
    Thank you for help.

  6. carrolcoo Reply

    Hi there.

    vboxmanage setextradata “” VBoxInternal2/EfiGraphicsResolution 1366×768 didn’t work for me.

    After some research I disabled System Integrity Protection from guest High Sierra under VirtualBox 5.2 like described here: http://anadoxin.org/blog/disabling-system-integrity-protection-from-guest-el-capitan-under-virtualbox-5.html.
    Then I was able to edit /Library/Preferences/SystemConfiguration/com.apple.Boot.plist and add key-string pairs + update VirtualBox config like described in answer 2 here: https://superuser.com/questions/478901/change-macos-x-guest-screen-resolution-for-virtualbox

    And finally I got my 1366×768 working.
    I hope it will help someone.

  7. Alan Ian Ross Reply

    I confirm the observation by Yunizar [on April 20, 2018]. As I wrote in a comment in another page of the blog, I’m running MacOS Sierra as a guest, in VirtualBox 5.2.10, under Linux Fedora 27 as its host.

    Here, under Linux(es), it goes as follows:

    1. with VirtualBox turned OFF, open a NON ADMINISTRATIVE (i.e.: non-root) terminal, and check the precise name of your virtual MacOS machine with

    $ VBoxManage list vms

    2. Assume the answer of VirtualBox is

    “MacOSX” {xxxxxxxx-yyyy-zzzz-wwww-nnnnnnnnnnnn}

    (where “BlahBlahBlah” is the PRECISE name you gave to your virtual MacOS machine when you created it, and this latter line is the hex code for the virtual disk). Then you have to input (again, in the non-root CLI)

    $ VBoxManage setextradata “MacOSX” VBoxInternal2/EfiGraphicsResolution 1366×768

    Voilà! When you’ll log back into your VBox-ed MacOS, you’ll finally find the screen set up to the correct 1366×768 mode.

    Hope this can help others…

    1. BorrowedWifi Reply

      Confirming non-root terminal input with format as described by Alan Ian Ross (I used 1900×1600 for my desired resolution) works perfectly on High Sierra VM running inside of Linux Mint 19 (Kernel 4.15.0-30-generic).

      A thousand and one thanks to everyone involved. We’re all in this together, and it’s heartening to see everyone taking care of each other.

  8. Yunizar Reply

    It will works for common 1366×768. First, change your original resolution to 1280×720, then apply 1280×720 to command prompt, the screen successfully fit.

  9. H2 Reply

    Thanx! Works like a dream, also on 2560×1600 (30″). Maybe you could ad “make sure to close virtualbox before running commandprompt” otherwise it doesn’t work…

  10. Icyam Reply

    I use dell laptop touch screen. I can move cursor but I can’t click button or something within touchscreen mode.

  11. Hector Fernandez Reply

    The resolution thing worked like a charm, now the problem is that the fonts within the Mac VM are very small, can’t find anything to get me to a overall resolution (e.g. Status Menu or the Finder). Anyone has any ideas? I am a MacOS newbie so any help is appreciated. Thank you.

  12. CapsAdmin Reply

    vboxmanage setextradata “macos” VBoxInternal2/EfiGraphicsResolution 1366×768

    Worked for me. Using Linux and virtualbox 5.2.6

    I was thinking if that does not work, I could choose the closest aspect ratio (16:9) and just scale it down. Then it should in theory look correct.

      1. Mats

        It works – but: I have an 17″ 4K screen. If I select 3840×2160, the display properties in the High Sierra in VB shows 3840×2160 on a 70″ screen. Consequently the desktop is larger than my screen. If I set it to 1920×1080 it becomes full screen and is quite acceptable. But the OS believes the screen is 30″. Is there a way to make the MAC OS understand that it is in fact a 17″ screen?

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