[LinuxBIOS] VGA Support on AMD DB800

Omar Esteves Duarte Filho duarte at vonbraunlabs.com.br
Thu Dec 20 21:25:55 CET 2007


I'm trying to use LinuxBIOS with AMD Geode DB800 platform. However, until
now, I could not manage to get VGA output working.

Here is a summary of what i've tried:

- built a LinuxBIOS rom image without VGA support.
- downloaded a brand new kernel from www.kernel.org (kernel version:
- configured this kernel, enabling these options:
 [*]   AMD Geode family framebuffer support (EXPERIMENTAL) 
 <*>     AMD Geode LX framebuffer support (EXPERIMENTAL)  

- editted GRUB's menu.lst file to include the following entry:

	title		Ubuntu, kernel
	root		(hd0,1)
	kernel		/boot/vmlinuz-
root=UUID=b40ebb15-49bd-4042-ab40-5437c0caa1ba ro quiet splash pnpbios=off
	initrd		/boot/initrd.img-

- compiled fbcon as a module.

However, if I try to modprobe fbcon, i get nothing. Running startx also
gives me no result... Does anyone have any idea or clue about this?




-----Mensagem original-----
De: linuxbios-bounces at linuxbios.org [mailto:linuxbios-bounces at linuxbios.org]
Em nome de Marc Jones Enviada em: terça-feira, 18 de dezembro de 2007 18:32
Para: Omar Esteves Duarte Filho
Cc: linuxbios at linuxbios.org
Assunto: Re: [LinuxBIOS] VGA Support on AMD DB800

Omar Esteves Duarte Filho wrote:
> Hello!
> I'm trying to use LinuxBIOS with the AMD Geode DB800 platform. I'd 
> followed all the instructions in http://linuxbios.org/VGA_support but 
> there is no sign of life at the VGA monitor. However, if i disable the 
> VGA support options in the COnfig.lb and Options.lb files, I get the a 
> linux console at the serial port. Has anyone been able to make VGA 
> work with this platform? If so, is there a HOWTO or some documentation 
> that could give a clue? I think i'm missing something... Any help is 
> welcome! :-)
> Best regards,
> Omar.
> */Omar Esteves Duarte Filho/*
> Werner Von Braun Center for Advanced Research Av. Alice de Castro P. 
> N. Mattosinho, 301
> 13098-381 Alphaville
> Campinas, SP - Brazil
> Fone +55 19 3262 2207
> http://www.vonbraunlabs.com.br <http://www.vonbraunlabs.com.br/>

Hi Omar,

There is no Geode graphics support in LinuxBIOS. You need to install the
  Geode framebuffer driver for console graphics and the X driver for X
support on your Geode Linux image. Until the driver loads there is only have
serial console output.


Marc Jones
Senior Firmware Engineer
(970) 226-9684 Office
mailto:Marc.Jones at amd.com

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