Th framebuffer driver is the third component that we need to support the graphics system for x86vbox. Since you may run VirtualBox on different Intel devices, they may use different graphics hardware, such as Nvidia, AMD, or Intel. To get the best performance in a virtualization environment, you may want to explore various GPU virtualization technologies, such as GPU passthrough, GPU sharing, GPU software emulation, and so on. To have a simple solution, we use the default solution from Android-x86, which is the uvesafb framebuffer driver.