[Intel-gfx] Framebuffer on multiple pipes

[Zhenyu Wang]

On 2009.11.05 16:30:19 +0100, Simon Pasch wrote:
> Hi.
> 
> I'm working on an embedded linux device with two screens connected to
> SDVOB/SDVOC-pipe (no internal lvds)
> In X, everything works fine (aftes executing some xrandr-commands: 1.
> disable everything, 2. enable only needed outputs), but nothing is
> displayed while booting (only on a connected vga-screen).
> 
> Could someone give me a hint:
> - where to disable internal LVDS in kernel-code? (because both pipes are needed)

We have DMI quirks for no LVDS system, see intel_lvds.c

> - how to enable SDVOB/SDVOC-pipes while booting (showing a cloned framebuffer)
> 

If LVDS is disabled, you'll get a free pipe so SDVOs could be lighted up then?

-- 
Open Source Technology Center, Intel ltd.

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