**Xfbdev** is a display server for the X Window System Protocol Version 11 that that uses the framebuffer provided by the Linux framebuffer device.

It works in x86_32 and x86_64 architectures.

Xvesa doesn't use configuration file like Xorg.
  Xvesa -display :0
  Xvesa -force
  Xvesa -videoTest
Shortkeys:
  Ctrl-Alt+Backspace - close Xserver
  Ctrl+Alt+F1
 
  * hardware acceleration could be achevied if your kernel driver supports your GPU 
  * it doesn't support DPMS
  * only supports Latin-1 keyboard keymaps

Xfbdev server was written by Keith Packard.

in order to have working framebuffer you need to add bootcode to you Linux bootloader.

  vga=ask (you will choose screen resolution)
  vga=0x311 (640x480x16
  vga=786
  
  
If you don't have /dev/fb0, thit means framebuffer was not turn on.