getting linux console on a frame buffer.

David Ho DavidHo at
Wed May 19 23:00:59 EST 2004

Hi Geert,

Thanks so much for responding to my cry for help.  I owe you one fresh cold
virtual beer! =)

> On Tue, 18 May 2004, David Ho wrote:
> > I have a 240*320 16bpp LCD (framebuffer) attached to a MPC852T that I
> > trouble running simple tests like rendering an image directly to the
> > framebuffer using fbi from Gerd Knorr.  I have already dump rawimage by
> > catting to the /dev/fb0 device.  I am at a point where I like to
> > the byte ordering and image rendering issues with jpeg and png files.
> Have you tried fbtest (CVS module fbtest at

I haven't try this so I'll get right on it as soon as I have my console
running on the frame buffer.

> > The problem may be that I don't have a linux console running on the
> > buffer device.  Would anyone know how to get the linux console on the
> > buffer but still receives input from a serial port (I don't have a
> > attached to the board.  I have been doing most things from the serial
> > console and remotely).
> Append `console=tty0 console=ttyS0' to the kernel command line, and
> messages will appear on both tty0 (fb) and ttyS0 (serial), while console
> will be taken from the last one (ttyS0).

I tried your suggestion, but I noticed tty's are not initialized in my
kernel startup log.  I'll looking into how I can start it.  Otherwise, I
lost the console (it does not appear on either tty0(fb) or ttyS0 (serial).

Thanks, David

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