After installation of Knoppmyth, my LCD display would not work.

I have an HD44780 2x20 that I have fiddled with the last couple days
trying to get working. The most I can get is garbage characters. I
compiled the latest lcd-proc-0.5.2 and set up a LCDd.conf to use the
HD44780 driver.

I've tried all connection types, but none of the others output anything.
the winamp connection type outputs garbage but I believe this is one one I
should be using because it is the 8-bit connection.

I did not wire this LCD however I believe it is the 8-bit winamp wiring
because it works great under LCDSmartie on windows, using the HD44780 dll
file, and the wiring diagram on their site shows the 8-bit wiring.

Under BIOS I have the parallel port set to ECP. On linux I am using the
ppdev module by running modprobe ppdev, which creates my /dev/parport0.

If I change the DelayMult setting in the .conf file I get different sets
of garbage output when starting LCDd.

Is winamp the right setting for a 2x20, same as a 4x20?

Is using ppdev's /dev/parpart0 okay, or should I use /dev/LPT?
(for some reason I don't have a /dev/LPT)

Here is a link to the case I ordered, which has the LCD built in and
prewired (which works under LCDSmartie):

frozencpu.com/products/5257/cst-477/Eagle_Tech_Multimedia_Center_Desktop_Case_W_VFD_and_400W_Power_Supply_ET-EC2-S.html?tl=g1c10s26

Since I am at least getting garabage I must be really close.
Any help greatly appreciated!!


Here are my settings in LCDd.conf:

[server]

# Tells the server to load the given drivers. Multiple lines can be given.
# The name of the driver is exactly the same as the name of the driver
# module that is to be loaded, including the case of the letters !
# (That is: unless a file= option is given in the driver section)
Driver=hd44780

# Tells the driver to bind to the given interface
Bind=192.168.1.165

# Listen on this specified port; defaults to 13666.
Port=13666

# Sets the reporting level; defaults to 2 (warnings and errors only).
#ReportLevel=3

# Should we report to syslog instead of stderr ? Default: no
#ReportToSyslog=yes

# Sets the default time in seconds to displays a screen.
WaitTime=5

---

## Hitachi HD44780 driver ##
[hd44780]

# Port where the LPT is. Usual values are 0x278, 0x378 and 0x3BC
Port=0x378

# Device of the interface
Device=/dev/parport0

# Select what type of connection. See documentation for types.
ConnectionType=winamp

# If you have a keypad connected.
# You may also need to configure the keypad layout further on in this
file.
Keypad=no

# set the initial contrast (for bwctusb only) [default: 0; legal: 0 -
1000]
Contrast=0


# If you have a switchable backlight.
Backlight=yes

# If you have the additional output port ("bargraph") and you want to
# be able to control it with the lcdproc OUTPUT command
OutputPort=no

# Specifies if the last line is pixel addressable or it controls an
# underline effect. [default: true (= pixel addressable); legal: yes, no]
#Lastline=true

# Specifies the size of the LCD.
# In case of multiple combined displays, this should be the total size.
Size=20x2

# For multiple combined displays: how many lines does each display have.
# Vspan=2,2 means both displays have 2 lines.

#vspan=2,2

# If you have a KS0073 or an other 'almost HD44780-compatible', set this
# flag to get into extended mode (4-line linear).
# This flag is NOT the old obsolete Extended option.
#ExtendedMode=yes

# If your display is slow and cannot keep up with the flow of data from
# LCDd, garbage can appear on the LCDd. Set this delay factor to 2 or 4
# to increase the delays. Default: 1.
DelayMult=6

# You can reduce the inserted delays by setting this to false.
# On fast PCs it is possible your LCD does not respond correctly.
# Default: true.
DelayBus=true


# If you have a keypad you can assign keystrings to the keys.
# See documentation for used terms and how to wire it.
# For example to give directly connected key 4 the string "Enter", use:
# KeyDirect_4=Enter
# For matrix keys use the X and Y coordinates of the key:
# KeyMatrix_1_3=Enter
KeyMatrix_4_1=Enter
KeyMatrix_4_2=Up
KeyMatrix_4_3=Down
KeyMatrix_4_4=Escap

You might want to make sure the device exists. Right now I can't get my VFD working because that device is not being created.[/code]

Curiosity got the better of me, I have to ask:

"What does this have to do with Installation?"

The problem appears to be with a piece of hardware (am I reading that right), then why not put it in the Hardware forum? You even start your message with "After installation..." would that not tell you that the rest of the topic has nothing to do with installation.

Now that I have got that off my chest, I do hope that you find a resolution to your problem.

I also have LCD problems my new installation , only black square on display .

Some reason R5F1 try to load hd44780 drivers from: /usr/lib/lcdprochd44780.so
but drivers is : /usr/lib/lcdproc/hd44780.so

I copy drivers to "wrong" place , and LCD wake up.


This maybe help , if yuo using R5F1. ( its not probably correct way to fix , but its working )

edit : Found a correct fix
add "/" end of the LCDd.conf driver path "DriverPath=/usr/lib/lcdproc/"