[GRLUG] VGA / video question

Thad Ward coderjoe69 at yahoo.com
Mon Mar 23 19:16:00 EDT 2015

I've used a few different cat5/cat6 extenders for doing video at conventions, both
with VGA and HDMI. One location we used shielded cat6 with one of these (or some
other brand that looked identical) to run the video a few hundred feet (including
a coil of excess cable backstage)


I don't know why there is only one power adapter in that one, though. There should
be one for each end. The "two power adapters" option appears to be a different
model entirely, with two VGA ports at each end and lower maximum resolution.

Regular cat5e will probably be fine for the run. I think the cat6 STP was overkill.

----- Original Message -----
> From: John-Thomas Richards <jtr at jrichards.org>
> To: "Mailing List for LUG in greater Grand Rapids, MI area." <grlug at grlug.org>
> Cc: 
> Sent: Monday, March 23, 2015 1:23 PM
> Subject: Re: [GRLUG] VGA / video question
> On Mon, Mar 23, 2015 at 09:23:54AM -0400, Dave Chiodo wrote:
>>  How many screens? Could co-locate a Raspberry Pi with each one, connected
>>  to to Ethernet? Then either run the software separately on each one, or use
>>  some sort of network screen mirroring like VNC?
> Running the software locally at each display (two large, one small) is
> not an option as the slides have to be advanced manually.
> I've tested the set up with much shorter cables and I get full 1080
> resolution. Unless I'm missing something entirely, this sounds like a
> signal issue (as Mike indicated). The question then becomes whether to
> buy a VGA signal booster for the longest length of cable (the one from
> the laptop to the VGA port splitter) or go with VGA-->CAT5-->VGA
> adapters. I don't really need much flexibility since this is installed
> and no longer mobile.
> -- 
> john-thomas
> -----
> Examinations are formidable even to the best prepared, for the greatest
> fool may ask more than the wisest man can answer.
> Charles Caleb Colton, author and clergyman (1780-1832)
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