[GRLUG] what's the opposite of a KVM?

[Bob Kline]

On Mon, Feb 15, 2010 at 2:20 PM, Michael Mol <mikemol at gmail.com> wrote:

> On Mon, Feb 15, 2010 at 1:51 PM, john-thomas richards <jtr at jrichards.org>
> wrote:
> > On Mon, Feb 15, 2010 at 01:44:57PM -0500, Steve Romanow wrote:
> >> On 2/15/2010 1:41 PM, Michael Mol wrote:
> >> >
> >> >With the exception of the display, it's easy enough to accomplish by
> >> >just plugging in a second keyboard and mouse. That's what I have going
> >> >on in my home-theater setup at home.
> >> >
> >> >As for the display, I have each display show up as a different screen.
> >> >(The TV is at :0.1, the desk is :0.0)  If you enable xinerama, both
> >> >displays become part of :0.0, which has conveniences as far as
> >> >dragging windows around. (I don't use it that way, though, because it
> >> >breaks vdpau, which I need for hardware-accelerated h264 decoding.)
> >> >
> >> I like Mikes thinking.  If your laptop doesnt have the hardware,
> >> this <
> http://www.google.com/products/catalog?q=usb+video+card&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&cid=13793920276800844395&ei=tJV5S8HIDciAnQfw85HHCQ&sa=X&oi=product_catalog_result&ct=result&resnum=1&ved=0CB8Q8wIwAA#ps-sellers
> >
> >> may help.
> >
> > I don't know that I've ever seen such a beast.  Crazy.  A USB VGA port.
> > I think that, along with Mike's idea of a wireless keyboard/mouse will
> > work for me.
>
> Take a look at the Newegg reviews:
> http://www.newegg.com/Product/ProductReview.aspx?Item=N82E16812200034
>
> USB2 is only 400Mb/s. 640x480x24bpp at 60Hz is 421.875Mb/s.  A more
> reasonable 1280x1024x24bpp at 60Hz is 1800 Mb/s.
>
> Don't expect a stellar refresh rate; more like VNC over a slow DSL
> connection. An extension cord run to your laptop's VGA, DVI or HDMI
> port is better. (And probably cheaper, too!)
>

USB 2 is nominally 480 Mbps.  Half
that would be the expected actual
performance.

http://en.wikipedia.org/wiki/USB_2

    -- Bob
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