VNC Viewer for Macintosh (flicker)

[Anthony Wood]

I think you can "Ditch the Switch".  If the NEC 5FG has the same features as the 5FGp which
we have here, you can plug one computer into the 5 BNC plugs and one into the D-SUB connector,
and switch between them using the "BNC/D-SUB SELECT" switch behind the front panel.  I'm not
sure what 'p' in 5FGp means though.

Woody


Jonathan Morton wrote:
> 
> >>I've tried using the standard VNC viewer to test my server implementation
> >>but found it unusable for the following reason:
> >>
> >>The bottom portion (up to 2/3rds) of the screen repeatedly updated, causing
> >>severe flicker.  On the Quadra 840av I was using, this slowed it down a lot
> >>too.  I didn't see any extra data being requested from the network as a
> >>result of these updates.
> >>
> >>I'd like to ask if other people have experienced this problem, which does
> >>not occur in the 'alternative' viewer by Purple Shark.
> >>
> >>Along with my efforts on the VNC Server for Macintosh, I'd like to fix this
> >>bug in the viewer, and add one or two important features such as
> >>double-buffering.  Also, I think i've spotted one possible speed-up for
> >>HexTile viewing which would be beneficial when double-buffering was *not*
> >>available.
> >>
> >>--------------------------------------------------------------
> >>from:     Jonathan "Chromatix" Morton
> >>mail:     chromi "at" cyberspace.org  (not for attachments)
> >>uni-mail: j.d.morton "at" lancaster.ac.uk
> 
> >This may be due to cabling etc.  I also have a Q840av and a year or so ago
> >I put in a switch box to enable my NEC 5FG to view both my Linux box and
> >the Mac.
> >
> >After the insertion of the switch box, whenever I would view an email
> >message with a line of asterisks, the display would go crazy and black out.
> >I could recover by (blindly) clicking on another email message which would
> >'cover' the line of asterisks.  (Determining that the problem was caused by
> >the asterisks took a bit of trial and error).
> >
> >Removing the switch box also cured the problem.
> >
> >There must be some circuitry resonance which is causing my problem and it
> >might be the same for you.
> >
> >Because of my switch box, I don't use VNC very much.  I will give it a try
> >and report back.
> >
> >BobG
> 
> Nope, it's not circuitry.  This is happening at the digital level - the
> window is being blanked white and repainted.  MacVNC (alternative viewer by
> Purple Shark) uses a very similar window, but doesn't have this problem.
> 
> I wouldn't bother with switchboxes if they caused *that* much problem, if i
> were you - in fact i don't have a switchbox myself, just a pair of monitors
> on separate video cards.
> 
> --------------------------------------------------------------
> from:     Jonathan "Chromatix" Morton
> mail:     chromi "at" cyberspace.org  (not for attachments)
> uni-mail: j.d.morton "at" lancaster.ac.uk
> 
> The key to knowledge is not to rely on people to teach you it.
> 
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