This rather largish patch provides a graphical console mode of vga console-client driver. It can be enabled by default if we patch gnumach video preference to linear framebuffer mode in boothdr.S (multiboot header).
Merging this patchset should not change default EGA text mode in QEMU, in case users prefer text mode consoles for now. But if grub is set to graphical mode, it may be enabled (?) Somehow the characters are limited to 80x25 chars in any video mode, and the rest of the screen is black, each character is 8x16 pixels. It's a start... Damien