[Voyage-linux] Howto get Framebuffer working

Richard Urwin (spam-protected)
Thu Oct 23 02:28:46 HKT 2008


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
-- 
Richard
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