linuxconsole-dev

Console over the video on my frame-buffer device

[Paolo S. <ar...@ti...>]

Using graphic applications based on framebuffers (GGI, for example) the
console is not hidden when a graphic mode is set. This happens on my
framebuffer device, but i dont know who has to disable the console while
using a graphi mode.

I think that framebuffer devices on PowerPC are different from PC, 'cause
with PC, text-mode and graph-mode memories were not the same, as here is.

Do you know anything helpfull for me?

thanx again!

- may the pinguin b with u -

Have a nice day,
Paolo Scaffardi.
AIRVENT SAM s.p.a. - RIMINI - ITALY

Re: Console over the video on my frame-buffer device

[James S. <jsi...@ac...>]

On Thu, 21 Sep 2000, Paolo Scaffardi wrote:

> Using graphic applications based on framebuffers (GGI, for example) the
> console is not hidden when a graphic mode is set. This happens on my
> framebuffer device, but i dont know who has to disable the console while
> using a graphi mode.

No this is normal. Remember fbcon is a graphical console. Since /dev/fb is
used to change the video mode we might want to preserve what on the
console. Now if you open /dev/fb to use it as a graphical interface then
you need to mmap the video memory and clear this memory.

This is strange. For most framebuffer based video hardware when you reset
the video mode it clears the video mode.