[Voyage-linux] Howto get Framebuffer working

[Rainer Stratmann]

Hello Richard,

the framebuffer works for me if I use a Knoppix Kernel!
May be this is not an elegant solution, but it works for me.

Also you have to chmod /dev/fb0 somewhere in thee bootprocess (for example in 
rc.local) in order to have the accessrights to the framebuffer.

Rainer

Am Mittwoch, 22. Oktober 2008 20:28 schrieb Richard Urwin:
> I have an ALIX 3C3, and it's running voyage-lenny well. I would be happy to
> downgrade to stable if that is my problem.
>
> This project is to build a, frankly over-engineered, digital photo-frame.
>
> I've done some reading, and I think I need to either use framebuffer or X.
>
> I don't need X - I think I can do everything with just a command-line and
> framebuffer.
>
> I tried adding the lxfb module, but got a black screen with green lines. Us
> old-timers recognise this as the monitor in graphics mode and the OS still
> thinking it's in character mode. I've tried adding vga=785 to the boot
> command, and got a simple black screen (much earlier in the boot.)
>
> I think I need to enable this in the kernel, but it will be the first one
> I've ever built, and I don't have any clear idea what I'm supposed to do to
> it. I notice that back in May someone posted a kernel with framebuffer
> enabled, but it seems to have disappeared now.
>
> Complications: My other machine is an AMD64x2, in native mode, so not a
> truly similar environment. It's running Hardy Heron. Until a bigger CF card
> arrives I'm limited to 256MB on the ALIX. It's never going to be huge.
> Although maybe I could use USB memory sticks to extend this, or use an NFS
> share to the big machine.
>
> Questions: What is the least I have to do to a stock voyage-linux to get a
> useable framebuffer? If I need to build the kernel, what is the best
> machine to do it on, the Hardy one, or the ALIX?
>
> TIA