This is a great feature that lets you creating your own game controller keypad if you want to use with games. Limbo provides a new feature called Key Mapper for SDL that provides a tiled-layout keymap that you can customize with keyboard keys and mouse buttons. Note that if you pause the virtual machine you won't be able to change the user interface until the next time you reboot the machine. There is more detailed information about each user interface, scroll down to read more and decide what interface suits you better. There are some key differences between these two options that basically boil down to a trade off between usability and performance:ġ) SDL has audio support which is preferred for games while VNC does not support audio.Ģ) SDL has native communication with QEMU and provides a more responsive graphical user interface while VNC relies on a network protocol to control the virtual machine.ģ) VNC allows you to zoom and pan on the screen (most of the VNC clients anyway) while SDL does not.Ĥ) VNC runs in the background while SDL pauses the virtual machine instead when Limbo is in the background.ĥ) VNC does not rely on Limbo for display and it is more light weight that means it is generally faster than SDL. Limbo provides 2 different user interfaces to control your virtual machines: SDL and VNC.