[lcd4linux] LCD4Linux Help!

[Matthew H. <ma...@ma...>]

Hi all,

Hoping someone can point me in the right direction.

I'm running LCD4Linux on a Sophos UTM box (Suse base), I suspect I may have
a dud parallel port, but wanted someone elses thoughts.

LCD4Linux is compiled with just the HD44870 driver, I'm doing a basic
config just to prove I can get a display up on the LCD. I have
double/triple checked wiring and I'm sure I have it right.

My config file looks like this:

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

Display HD44780-winamp {
    Driver  'HD44780'
    Model   'generic'
    UseBusy  1
    Port    '/dev/parport0'
    Size    '16x2'
    Wire {
        RW        'AUTOFD'
        RS        'INIT'
        ENABLE    'STROBE'
        ENABLE2   'GND'
        GPO       'GND'
   }
}


Widget MEM {
    class      'Text'
    expression  meminfo('MemTotal')/1024
    prefix     'MB:'
    width       11
    align      'L'
    precision  '0'
    update      1000
}

Layout Default {
    Row1 {
        Col1 'MEM'
    }
}

Display 'HD44780-winamp'
Layout  'Default'

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

When I run it using: sudo /sbin/lcd4linux -Fvv

I get the following:

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

Version 0.11.0-SVN-965 starting
lcd4linux.c: initializing driver HD44780
HD44780: $Rev: 905 $
HD44780: using model 'generic'
HD44780: using parallel port
HD44780: using 1 Controller(s)
HD44780: using 8 bit mode
udelay: using gettimeofday() delay loop
HD44780: using ppdev /dev/parport0
HD44780: wiring: DISPLAY:RS        - PARPORT:INIT   (Pin 16)
HD44780: wiring: DISPLAY:RW        - PARPORT:AUTOFD (Pin 14)
HD44780: wiring: DISPLAY:ENABLE    - PARPORT:STROBE (Pin  1)
HD44780: wiring: DISPLAY:ENABLE2   - PARPORT:GND
HD44780: wiring: DISPLAY:ENABLE3   - PARPORT:GND
HD44780: wiring: DISPLAY:ENABLE4   - PARPORT:GND
HD44780: wiring: DISPLAY:BACKLIGHT - PARPORT:GND
HD44780: wiring: DISPLAY:GPO       - PARPORT:GND
HD44780: wiring: DISPLAY:GPI       - PARPORT:GND
HD44780: wiring: DISPLAY:POWER     - PARPORT:GND
HD44780: timing:     CY =  1000 ns (default)
HD44780: timing:     PW =   450 ns (default)
HD44780: timing:     AS =   140 ns (default)
HD44780: timing:     AH =    20 ns (default)
HD44780: timing:  INIT1 =  4100 us (default)
HD44780: timing:  INIT2 =   100 us (default)
HD44780: timing:   EXEC =    80 us (default)
HD44780: timing:   WRCG =   120 us (default)
HD44780: timing:  CLEAR =  2250 us (default)
HD44780: timing:   HOME =  2250 us (default)
HD44780: timing:  ONOFF =  2250 us (default)
HD44780: using busy-flag checking
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: timeout waiting for busy flag on controller 1 (0xff)
HD44780: too many busy flag failures, turning off busy flag checking.
HD44780: using 0 GPI's and 0 GPO's
initializing layout 'Default'
 widget 'MEM': Class 'text', Parent '<root>', Layer 1, Row 0, Col 0
lcd4linux.c: starting main loop

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

But nothing ever displays on the LCD. I get the above regardless if the LCD
is connected or not, so I simply don't think it is seeing the LCD at all. I
have tried two different LCDs as well with the same result

Any pointers from here or how I can trouble shoot further?

Thanks in advance!

Regards,
Matt Hodder