Advanced Display Configuration
9.6.1 Custom VESA Resolutions
Apart from the standard VESA resolutions, the Oracle VM VirtualBox VESA BIOS enables you to
add up to 16 custom video modes which will be reported to the guest operating system. When
using Windows guests with the Oracle VM VirtualBox Guest Additions, a custom graphics driver
will be used instead of the fallback VESA solution so this information does not apply.
Additional video modes can be configured for each VM using the extra data facility. The extra
data key is called CustomVideoModex with x being a number from 1 to 16. Please note that
modes will be read from 1 until either the following number is not defined or 16 is reached. The
following example adds a video mode that corresponds to the native display resolution of many
notebook computers:
$ VBoxManage setextradata <VM-name> "CustomVideoMode1" "1400x1050x16"
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