14.4 Command Line Window

The terminal window used to provide command line access within the graphical menu is managed by gfxmenu/view.c. The ‘gfxterm’ terminal is used, and it has been modified to allow rendering to an offscreen render target to allow it to be composed into the double buffering system that the graphical menu view uses. This is bad for performance, however, so it would probably be a good idea to make it possible to temporarily disable double buffering as long as the terminal window is visible. There are still unresolved problems that occur when commands are executed from the terminal window that change the graphics mode. It’s possible that making grub_video_restore() return to the graphics mode that was in use before grub_video_setup() was called might fix some of the problems.