Presentation system to large remote display screen

[DelJo63]

related & similar but different from https://www.techspot.com/vb/topic87646.html

goal: run presentations on PC and using dual monitors, display on large
display screen ~ 20ft away in a conference room (w/o any systems in the room).
intent is to use wireless VNC connection from laptop to control pc running the presentation.

video screen will be at least 37" wide, have wide angle viewing.

No gaming or HDTV required, only good graphics for Powerpoint presentations.

Issues:

1. cable distance to pc
2. dvi vs hdmi
3. resolution for viewing powerpoint

Initial thoughts are to use an nVidia 9600 dual ported card and run it in 720p.

What do you think?

 

[DelJo63]

I found this DVI / HMDI switch to manage the long distance cabling.

http://www.hdtvsupply.com/dviswsw6dvii.html

Would solve the connectivity issues (computer DVI video vs large panel display using HMDI)
and add signal boost / filtering and audio+video in the same cable

 

[DelJo63]

Summary of Issues

Summary of Issues for Flat Panel Display

• Viewing distance
  A general rule for the TV viewing distance based on the SMPTE and visual acuity guidelines,
  is that the nearest TV viewing distance between you and your big screen TV should be
  limited to approximately twice the screen width
  (more precise 1.87 x screen width for a subtended angle of 30 degrees),
  while the furthest distance being no more than five times the width of your screen.
  Optimum viewing distance of a flat panel TV is approximately three times the height of the screen.
• .
• Viewing Angle
  Maximum vertical angle of view: In those home theater set-ups where this is not possible,
  the SMPTE guidelines suggest that the maximum vertical angle measured at the seated eye
  height from the front row center seat to the top most part of the projected image should not
  exceed 35 degrees.
• .
• Max View Distance:
  8 ft --> 37" wide
  10 ft --> 42" wide
• .
• Computer Connections
  HDMI --HDMI builds on DVI by adding multichannel digital audio to the digital video,
  so digital audio and video can be transmitted in one cable.
  DVI -- most prevalent connection to a computer.
• .
• Sound at viewing location (ie: Speakers may be optional)
• .
• Mounting
• .
• Cabling (both which ones and how to hide or make presentable)
  power
  is tv signal to be included?
  computer video
  (audio? within HMDI)
• .
• Computer Video Card capability
  HMDI is rare! DVI is the standard for computer-2-HDTV
  the computer output is DVI-D digital or DVI-I (digital only), not DVI-A analog
• .
• Computer Audio Card capability
  Needs Digital OUT if using HDMI
  (audio? digital audio toslink, s/pdif, XLR: M-Audio Audiophile 2496 w/S/pdif)
  audio: see http://www.zzounds.com/item--MDOAP2496
  optional A/V inputs (DVD, Stereo)
• .
• Mixer. Provides consolidation of inputs and signal boost/shaping for long
  distance cable between computer and the Presentation Screen
  Video Storm TMDS61 6 to 1 HDMI and DVI
  (run dvi+auto from computer to mixer, thence to remote flat panel using HMDI)
  http://www.video-storm.com/proddetail.asp?prod=TMDS61