[lcdproc] Debugging a strange Matrix-Orbital Problem

[mike wakerly]

Hello All,

I just installed LCDProc to test my Matrix Orbial 
20x4 (LKD -- wide voltage) display. You know, the one 
it seems LCDProc was written for.

Which is why I'm going bonkers wondering if I have a 
software/host problem here or if my LCD has bought 
the farm!

The Problem: When I run LCDd, the display seems to 
flicker -- eg, I can see the display refreshing 
(maybe a dozen or so times per second).

ALSO: I get strange artifacts! For example, if I just 
run the memory module, the middle two lines seem 
okay, but where the heart should be in the top right 
corner is a flickering quazi-heart distortion.

(Incidentally, I've also noticed the back of the 
display just above the power connection seems to get 
very warm; never noticed this before but I'm sure 
I've given it the correct [12vDC] voltage.)

I don't know what could cause these problems; it 
seems like I can write ASCII to the display just fine 
(I'm using linux... simple `echo hello 
> /dev/lcd`).... no artifacts.... but LCD proc 
introduces something that makes the display go batty.

I have a possible list of problems; if anyone could 
offer any insight (or if you've experienced something 
like this), I would much appreciate the info.

Possible sources of the artifacts (ordered by 
decreasing probability):
   * LCD damage? (static zapped something?)
   * Incorrect host BIOS setting? (running Linux on a 
$500 Compaq is not fun...)
   * Matrix-Orbital BIOS something-or-other?
   * Bad cable/shielding? (Unlikely -- artifacts are 
very consistent in where they do and do not occur)

Thanks!
Mike

[PS: I realize this might end up being a Matrix-
Orbital problem, but if no one minds I thought this 
list might have a bit broader knowledge; so far, 
anyway, I have only had this problem with LDCproc).]


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