
You can press the host key + C to change the macOS virtual machine’s screen mode between scaled mode and normal mode.Click the Switch button on the dialog, then you can see the macOS virtual machine’s screen will be changed to fit the virtual machine’s window size.Then it will popup a dialog, read this dialog carefully, it tells you how to exit the scaled mode ( press the Host Key + C), on Windows the host key is the Right Ctrl key, on macOS the host key is Left Command key.To fix this issue, you just need to start the macOS virtual machine, then click the View -> Scaled Mode menu item on the virtual machine’s top menu bar.Because the virtual machine’s screen may be wider or higher than the virtual machine window’s size, you have to scroll the scroll bar to operate the macOS apps.Although the macOS virtual machine’s screen resolution has been changed, you may still find it is not good to operate.How To Make VirtualBox macOS Virtual Machine Screen Full Fill The Virtual Machine’s Window. My VirtualBox version is 6.1.30 r148432 (Qt5.6.2), My macOS version is macOS Catalina 10.15.7, My host OS is Win10.Start the macOS virtual machine again, now you will find the screen resolution has been changed.Close the VirtualBox Manager window and restart it.There are 5 values for the VBoxInternal2/EfiGopMode.C:\Program Files\Oracle\VirtualBox>VBoxManage setextradata "macOS" CustomVideoMode1 1920x1080x32Ĭ:\Program Files\Oracle\VirtualBox>VBoxManage setextradata "macOS" "GUI/CustomVideoMode1" 1920x1080x32Ĭ:\Program Files\Oracle\VirtualBox>VBoxManage setextradata "macOS" VBoxInternal2/EfiGopMode 5Ĭ:\Program Files\Oracle\VirtualBox>VBoxManage setextradata "macOS" VBoxInternal2/EfiGraphicsResolution 1920x1080 Then run the below 3 commands in the dos window.



How To Get The Current macOS Screen Resolution.
