Using SDL with fbcon problem

SDL Development
1

Hello!

I have problem using fbcon with SDL.
I am running on Linux SuSE version 2.6.16.13-4-default. And I want to use
fbcon as a SDL_VIDEODRIVER.
Framebuffer in the kernel( linux-rbll 2.6.16.13-4-default) is supported as
a kernel module (intelfb.ko). but it is suspicious that there is no any fb
device in /dev (I am not sure whether that should be one, sorry I am Linux
newbie).
So I set SDL_FBDEV to intelfb, and SDL_VIDEODRIVER to fbcon. but I still
get “No video device” error.

Thank you in advance,
Melomori Lee.

2

So I set SDL_FBDEV to intelfb, and SDL_VIDEODRIVER to fbcon. but I
still get “No video device” error.

If there isn’t a /dev/fb* node, then SDL can’t use it. Generally this
means the kernel doesn’t support the hardware, or support wasn’t
included in the kernel (or maybe a kernel module isn’t loaded?)

You need to fix that first.

–ryan.

3

Thank you very much, Mr Gordon, for help!

Generally this means the kernel doesn’t support the hardware, or support
wasn’t
included in the kernel (or maybe a kernel module isn’t loaded?)

Sorry for not SDL question, but when fb module is loaded, should /dev/fb* be
created? when I load intelfb, it loads successfully, but no /dev/fb* is
created. so most likely “kernel doesn’t support the hardware”…

Thank you one more time (it seemed I was at deadlock with that framebuffer
stuff, but now I more or less understand),

Melomori Lee.

4

Sorry for not SDL question, but when fb module is loaded, should
/dev/fb* be created? when I load intelfb, it loads successfully, but no
/dev/fb* is created. so most likely " kernel doesn’t support the
hardware"…

It’s possible that you loaded the hardware-specific driver, but there’s
some higher level module it’s waiting for before it’ll expose the device
(like the “fbcon” module or something).

Once it’s working, there should be a /dev/fb* device.

You’d really have to ask on a Linux-specific forum to get a more direct
answer, though.

–ryan.