linux-kernel - Re: How to use gma500 framebuffer driver?

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Date:	Sat, 12 Mar 2011 20:54:59 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Greg Brigley <gbrigley@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: How to use gma500 framebuffer driver?

On Sat, 12 Mar 2011 12:01:17 -0500
Greg Brigley <gbrigley@...il.com> wrote:

> Thanks guys.  I went to retrieve a dmesg dump for Alan, and thought I
> should really do it without some other modules I had loaded, so the
> output would be less cluttered.  When I did that, the framebuffer
> worked!

It will probably fail if you have the vesa framebuffer driver enabled or
vga16fb.

> I'll figure out which other module was causing the trouble and report back.

That would be useful info.

> As for the mirrored display, is this something I might reasonably take
> on myself, having no experience with  video drivers?  If so, pointers
> for where to start looking would be great.

There are three things we need to do before we can do multi display
properly

- debug non panel outputs so the HDMI and other ports work on all systems
- an actual KMS X server
- a memory allocator (although in theory we don't need that if we stick
  to mirrored)

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