RE: [MLUG] xdmcp/gdm

["Brent Deterding" <EMAIL:PROTECTED>]

I also use RealVNC - qwhere can I define encoding options?

-- Brent

-----Original Message-----
From: EMAIL:PROTECTED
[mailto:EMAIL:PROTECTED]On Behalf Of Mike Miller
Sent: Saturday, January 03, 2004 2:07 AM
To: MLUG Members
Subject: RE: [MLUG] xdmcp/gdm


On Sat, 3 Jan 2004, Brent Deterding wrote:

> VNC sucks.
>
> hehe some justification for that . . .
>
> VNC sends compressed bmp data of changed pixels when a screen change
> occurs.

There are a few VNCs now.  The RealVNC (original) that I've been using
allows a few different types of encoding.  It does JPEG, for one.  It's
certainly not all BMP.


> Terminal Service operates lower in Windows GDI and is much faster.
> Example - I type "Hello World" in wordpad. In a VNC session it polls the
> window, decides which pixels changed, grabs the bmp data for those
> pixels, compresses it and sends it. Terminal Services says "Hello World"
> was entered into this app - display it. The difference is very
> significant.

So it does the same sort of thing as WinVNC, but it's faster?  Is it doing
something different from what PCAnwhere does?  I'm not sure about
PCAnywhere, but I used to *think* it did what you describe.


> As an example - VNC is sluggish via broadband while Terminal Service is
> substantially faster over a 28.8 modem (I've seen this).

If you're right, that's really nice.  There are several VNC versions
written for Windows.  I'll post a question about this on the VNC list to
see what they say.

Thanks for the info!

Mike
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