There are two main parts to amending the screen resolution. The first is to change the VirtualBox settings for your Android installation, and the second is to tweak the boot menu option within GRUB to reset the screen resolution. We show you how.
How to Fix the Virtualbox Screen Resolution for Android
Follow these steps to add a custom screen resolution in Virtualbox for Android: When you start Android the next time, it automatically resizes to the new resolution as soon as you choose the menu option within GRUB. If the resolution isn’t to your liking, follow the instructions above again and choose a different resolution where required.
In Windows 10, type command into the search bar, and select the Command Prompt app.In Windows 8.1, right-click the Start button and select Command Prompt.In Windows 7, press the Start button and type cmd.exe into the Run box.In Linux, open a terminal window. In Ubuntu, press the super key and type term into the dash. Then, select the terminal icon. In Mint, open the menu and select the terminal icon within the menu (or press Ctrl+Alt+T at the same time).
In Linux, you don’t have to navigate to the folder for VirtualBox since it’s part of the path environment variable. In Linux, the command is similar except you don’t need the .exe part of the command: VBoxManage setextradata “WHATEVERYOUCALLEDANDROID” “CustomVideoMode1” “desiredresolution”
/Android #
Type the following lines into the terminal window: mkdir /boot mount /dev/sda1 /boot vi /boot/grub/menu.lst First, note the appearance of four blocks of code, all starting with the following text:
title Android-x86 4.4-r3
The one you want in is the first block. Use the arrow keys on the keyboard to move the cursor down to the line just below the first title, Android-x86 4.4-r3.
kernel /android-4.4-r3/kernel quiet root=/dev/ram0 androidboot.hardware=android_x86 src=/android-4.4-r3
The line should now look as follows:
kernel /android-4.4-r3/kernel quiet root=/dev/ram0 androidboot.hardware=android_x86 UVESA_MODE=1024x768 src=/android-4.4-r3
