Dotaz: Existuje virtualne virtualni framebuffer ?

[danfiala]

Ahoj, existuje pro Linuxove jadro framebuffer, ktery by nebyl napojen na zadny realny hardware, pouze by poskytoval rozhranni framebufferu a operace realizoval pouze do pameti? Dekuji, Daniel Fiala.

Odpovědi

[zabza]

Asi jo (jestli to teda y jádra už někdo nevykopal...)

CONFIG_FB_VIRTUAL:

   This is a `virtual' frame buffer device. It operates on a chunk of
   unswappable kernel memory instead of on the memory of a graphics
   board. This means you cannot see any output sent to this frame
   buffer device, while it does consume precious memory. The main use
   of this frame buffer device is testing and debugging the frame
   buffer subsystem. Do NOT enable it for normal systems! To protect
   the innocent, it has to be enabled explicitly at boot time using the
   kernel option `video=vfb:'.

[danfiala]

Hm, ale nikdo jej neudrzuje a nefunguje... Kde jsem to cetl: How to start kernel hacking? vi /boot/vmlinuz