[ale] video over serial

[James P. Kinney III]

That would be much worse than "extremely painful".

640x480x8 bit color = 2,457,600 bit per screen.

Serial line speed 115200 bits per second. (doesn't look good from here)

screen size / speed = 21 seconds PER SCREEN WRITE!!!

Hopefully, this is just for a little 2 line LCD display for fan temp.

On Sun, 2003-01-12 at 20:54, Mike Panetta wrote:
> I think he wants a graphical display...  Thats my assumption atleast...
> 
> Thats not very easy over serial...  I wont say its impossible, but X
> over serial wont be very fast....
> 
> 
> Mike
> 
> On Sat, 2003-01-11 at 06:09, Geoffrey wrote:
> > Maybe I'm missing something.  Sounds like your typical serial 
> > connection.  This is the way UNIX used to be.  One computer with a bunch 
> > of dumb terminals connected to it via serial.  You can have a direct 
> > serial connection between the two computers, turn a getty on on that 
> > port and you've got login, it's that easy.
> > 
> > So, maybe it's too early (on Saturday), someone else tell me what I'm 
> > missing??
> > 
> > Joe wrote:
> > >>hey i dont know what it would be called (if it even exists) so im asking
> > >>here :) i was curious, say we had the right cable to hook a computers
> > >>video out (like inverted serial) to a serial port, could it be displayed
> > >>on a laptop with the right app? is there such an app? it would make my
> > >>life sooooooo easy if i could plug a laptop into a computer and have an
> > >>instant screen :).. well almost instant, and yet portable! reason i ask i
> > >>have an old p1 laptop thats collecting dust, i want to use it for a series
> > >>of thin clients, stuff like ssh connections to other computers, as a
> > >>moniter, that sorta thing... is it possible ? all it would be doing is
> > >>taking data in from serial and displaying it in a window in linux, atleast
> > >>it sounds simple... my guess is for some reason its not possible,... could
> > >>someone shed some light on this?
> > > 
> > > 
> > > You could install VNC <URL: http://www.uk.research.att.com/vnc> on both
> > > machines and use SLIP or PPP to set up an IP network via the serial
> > > ports. It might be a bit slow, though.
> > > 
> > > If all you need is a text shell (eg telnet), then PPP-over-RS232
> > > would be a fine solution.
> > > 
> > > Adapting a video output to a serial port is not possible (or
> > > not sensible, anyway) - the video output is nothing like
> > > ASCII text.
> > > 
> > > Cheers,
> > > 
> > > -- Joe
> > >  
> > > _______________________________________________
> > > Ale mailing list
> > > Ale at ale.org
> > > http://www.ale.org/mailman/listinfo/ale
> > > 
> > > 
> > 
> > -- 
> > Until later: Geoffrey		esoteric at 3times25.net
> > 
> > The latest, most widespread virus?  Microsoft end user agreement.
> > Think about it...
> > 
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> > Ale at ale.org
> > http://www.ale.org/mailman/listinfo/ale
> 
> 
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-- 
James P. Kinney III   \Changing the mobile computing world/
President and CEO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics) <jkinney at localnetsolutions.com>
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