[lcdproc] LCDproc .4-pre9 + Matrix Orbital

[Eric Z. Ayers]

Hello,

I'm working on a project where the LCD/keypad will be the user
interface to a headless PC.  I've got a Matrix Orbital 20x4 LCD
(VK-204-25 or LK-204-25, I'm not sure which) setup for
development/testing. I looked at both LCDProc .3.5 and  LCDProc
0.4-pre9.    

I just LOVE the client interface that 0.4 offers, and its ability to
use different hardware.  BUT, I get a lot of ugly flickering.
I thought it was something about my display or maybe power, but when I
ran .3.5 I get a nice flicker-free display.   

So then, I thought that maybe it's just the lcdproc client, so I wrote
my own client, but even if I just update once every 4 seconds, the
screen flickers a lot.  The bottom line is the worst.  If I stare at
it, I can faintly see the fourth line echoed in the third line on the
screen.   The fourth line has a bunch of 'inverse heart' characters
echoed faintly. 

I also see one 'inverse heart'  in the upper right corner as well. 

I'm wondering: Is this by design?  Or are these artifacts due to some
kind of bug in the driver?  Or possibly it is some kind of
configuration issue that I can control?   

I see a reference to this problem with Mtx Orbital VFD displays from
the mailing list back in May.  Holy cow!  Somehow I just fixed a big
part of the problem.  The physical power connection I'm using isn't
all that great.  OK, the solution is to turn your display upside down
to look at the part number etched into the back... 

Seriously, I still see some filckering, this time in the upper left
two 'blocks' on the screen.  This occurs on the server screen as well
as my client screen.  Is anyone else seeing this?  

----------------------------------------------------------------------------

On another note:  I'm interested in a menu system that launches
scripts (and allows the user to enter certain data)  The notes say
this is unimplemented.  Has there been any interest in continuing the
implementation of menus in the server? I've got programmers available
to work on it if you're interested in patches to make this work.   

I'm looking more deeply into the code now.

Regards,
-Eric.


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