Beagle board - display

Hi.. I am new to Beagleboard. The beagleboard shopping list mentions
about the need of a DVI-D monitor. I have a laptop running ubuntu. Can
my laptop's lcd display be used to view the output from the beagle (in
addition to using the display for regular purposes).

You do not *need* a monitor.
My beagle hums happily and is accessed using ssh and serial. Using X
one can let clients connect to a remote server (which could be your

If you want to use your laptop as beagle monitor (without modding the
laptop), I think you are out of luck.
(unless your laptop has dvi in, but afaik this is not common).
It might be possible to use svga in of your laptop (provided it has svga in).


Even better... My favorite Angstrom distribution includes the VNC server.

I connect the one mini-A USB cable. It also powers the board. Once the
kernel is up, the USB also hosts the Ethernet gadget.

One wire. Power, ssh and VNC. Very simple, very clean.

- dan

refresh my memory ... what's the deal on the subtle difference in
those mini cables? a pointer to a web page will do just fine.


Wikipedia is the font of all wisdom...

USB B and mini-B were designed for peripheral devices. A and mini-A
are for host.

USB On The Go stirs the pile a bit. OTG allows two hosts to connect
such as a PC and the Beagleboard.

From Wikipedia:

OTG Micro Plugs

The USB On-The-Go standard introduces a new plug receptacle called
Micro-AB. It can accept either a Micro-A plug or a Micro-B plug.
Micro-A Adapters allow for connection to Standard-A plug type USB
cables, as used on standard USB 2.0 Devices. An OTG product must have
a single Micro-AB receptacle and no other USB receptacles.[6][7]

The OTG cable has a micro-A plug on one side, and a micro-B plug on
the other (it cannot have two plugs of the same type). OTG adds a
fifth pin to the standard USB connector, called the ID-pin; the
micro-A plug has the ID pin grounded, while the ID in the micro-B plug
is floating. The device that has a micro-A plugged in becomes an OTG
A-device, and the one that has micro-B plugged becomes a B-device (see
above). The type of the plug inserted is detected by the state of the
pin ID .

- dan

...and Special Computing has it all for you in one place:

- dan

i actually have one such cable at my place, cost $2 at a local
surplus shop so i figured, why not, might need it some day. but it
has no identifying symbols on it. i'll have to wait until i get home
to be able to tell which type it is. or will that be obvious? or am
i just babbling by now?


I won't judge... :wink:

Wikipedia has a good drawing. Mini-B has square corners, Mini-A has
slanted corners. Micro-A and Micro-B are the other way around.

- dan

Mon, 30 Nov 2009, Dan Poirot kirjoitti:

Wikipedia has a good drawing. Mini-B has square corners, Mini-A has
slanted corners. Micro-A and Micro-B are the other way around.

I once took pictures of all the standard USB connectors which I'm aware of. Texts are only in Finnish, sorry.