[LinuxBIOS] Programming i2c video-out

Luc Verhaegen libv at skynet.be
Tue Mar 13 13:46:19 CET 2007

On Tue, Mar 13, 2007 at 12:57:27AM -0400, joe at smittys.pointclark.net wrote:
> Quoting Luc Verhaegen <libv at skynet.be>:
> > On Tue, Mar 13, 2007 at 04:50:47AM +0100, Quux wrote:
> I understand video encoders are not standalone. They receive input  
> from your GPU, in my case it is embedded so the northbridge, encode  
> it, and send it out the output. I have a vga bios that outputs to  
> DVOA. This is the the port that is connected to the input of the video  
> encoder. Unfortunatly (intel) never released a module for this video  
> encoder. So, this is what I want to do. Write a driver to initialize  
> the video encoder and then when the vga bios starts outputting to DVOA  
> we should have signal correct?
> Thanks - Joe

Your only real chance is doing this shortly _after_ the VGA BIOS has 
run. That way you can adjust to whatever tricks the VGA BIOS pulls.

Luc Verhaegen.

More information about the coreboot mailing list