Thread: [lcd4linux] Lcd4Linux and ubuntu

SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 422-6466

Hallo,

does lcd4linux work with ubuntu?
I cannot compile the files

Thanks,
Max

I've also had trouble with LCD4Linux with Ubuntu 5.10. (Using the HD44780
display setup)
 When I try to compile it I get this error:
In file included from drv_generic_i2c.c:76
lcd4linux_i2c.h:81: error: array type has incomplete element type
make: *** [drv_generic_i2c.o] Error 1

Instead, I tried installing the dapper package, which installed succesfully=
.
However I get this error when I run it with -Fvv:
Version 0.10.1-CVS starting
plugin_cfg.c: Variable minute =3D '60000' (60000)
plugin_cfg.c: Variable tack =3D '100' (100)
plugin_cfg.c: Variable tick =3D '500' (500)
lcd4linux.c: initializing driver LCD-Linux
drv_init(LCD-Linux) failed: no such driver

As a first time user, I'm not really sure what the problem is with either
installation method.  For now, I'm trying to solve the problem with the
package and somehow get it working with my HD44780 display.  Any help would
be appreciated.

Hi there,

> I've also had trouble with LCD4Linux with Ubuntu 5.10. (Using the
> HD44780 display setup)
>  When I try to compile it I get this error:
> In file included from drv_generic_i2c.c:76
> lcd4linux_i2c.h:81: error: array type has incomplete element type
> make: *** [drv_generic_i2c.o] Error 1

Which version are you using? from CVS?

> Instead, I tried installing the dapper package, which installed
> succesfully. However I get this error when I run it with -Fvv:
> Version 0.10.1-CVS starting
> plugin_cfg.c: Variable minute = '60000' (60000)
> plugin_cfg.c: Variable tack = '100' (100)
> plugin_cfg.c: Variable tick = '500' (500)
> lcd4linux.c: initializing driver LCD-Linux
> drv_init(LCD-Linux) failed: no such driver

This means that the LCD-Linux driver isn't part of the distribution.
Maybe due to the fact that the last release of lcd4linux is quite old....

You may want to try the CVS version. If your first problem persists,
maybe some of the I2C guys can help... (are there any I2C guys listening
here?)

bye, Michael

-- 
Michael Reinelt <re...@eu...>
http://home.pages.at/reinelt
GPG-Key 0xDF13BA50
ICQ #288386781

It seems I misunderstood how the config file should be set up. Anyway, I
ended up successfully compiling the 0.10 version (as opposed to the -RC1). =
I
set up the config file as shown on the page for the HD44780, and have the
uname widget included. However, when I try to run LCD4Linux, I recieve no
errors, yet the screen does nothing.  I've triple checked my circuit, it is
exactly the same as the schematic on the HD44780 page. Can anyone offer me
some advice on troubleshooting and debugging this?

Sir
I had a few problems with ubuntu
i did not have the parport module loaded..
run lsmod in a consule look for
parport

after i modprobed the module lcd4linux worked fine..

regards
Simon Clare

>From: for...@gm...
>To: lcd...@li...
>Subject: [lcd4linux] Lcd4Linux and ubuntu
>Date: Sat, 25 Mar 2006 16:14:34 -0500
>
>It seems I misunderstood how the config file should be set up. Anyway, I
>ended up successfully compiling the 0.10 version (as opposed to the -RC1). 
>I
>set up the config file as shown on the page for the HD44780, and have the
>uname widget included. However, when I try to run LCD4Linux, I recieve no
>errors, yet the screen does nothing.  I've triple checked my circuit, it is
>exactly the same as the schematic on the HD44780 page. Can anyone offer me
>some advice on troubleshooting and debugging this?

Everything seems to be fine, but when I run lcd4linux, nothing happens on m=
y
40x2 display (A few LED's on the test ciruit are lit up, but do nothing).
Here's what I've got for my config:

Display HD44780-40x2 {
    Driver  'HD44780'
    Model   'generic'
    #UseBusy  1
    Port    '/dev/parport0'
    Size    '40x2'
    Wire {
        RW      'AUTOFD'
        RS      'INIT'
        ENABLE  'STROBE'
        ENABLE2 'GND'
        GPO     'GND'
    }
}

Widget CPU {
    class      'Text'
    expression  uname('machine')
    prefix     'CPU '
    width       9
    align      'L'
    update      tick
}

Layout Default {
    Row1 {
        Col1 'CPU'
    }
}

Variables {
   tick 500
}

Display 'HD44780-40x2'
Layout  'Default'

Here's the output of lsmod:
$ lsmod | grep parport
parport_pc             31812  2
parport                32072  3 ppdev,parport_pc,lp

I tried running lcd4linux a few times:
$ sudo lcd4linux -Fvv
Version 0.10.1-CVS starting
plugin_cfg.c: Variable tick =3D '500' (500)
lcd4linux.c: initializing driver HD44780
HD44780: using model 'generic'
HD44780: using parallel port
HD44780: using 1 Controller(s)
HD44780: using 8 bit mode
udelay: CPU supports Time Stamp Counter
udelay: CPU runs at 599.660000 MHz
udelay: using TSC delay loop, 600 ticks per microsecond
HD44780: using ppdev /dev/parport0

After nothing happened on the display, and ther terminal sat at that last
line, I killed it and checked dmesg, finding this repeated a few times:
[4309928.636000] ppdev0: registered pardevice
[4309982.517000] ppdev0: unregistered pardevice

Any more ideas? I've also tried using a raw port (0x3bc) without any luck.
Thanks.

Hi Max,

> does lcd4linux work with ubuntu?
It should, really!

> I cannot compile the files
What exactly is your problem? Can you provide error messages?

bye, Michael

-- 
Michael Reinelt <re...@eu...>
http://home.pages.at/reinelt
GPG-Key 0xDF13BA50
ICQ #288386781

unb...@ar... wrote:
> Hallo,
> 
> does lcd4linux work with ubuntu?
> I cannot compile the files

Did you apt-get the development stuff, like make and gcc?

> 
> Thanks,
> Max
> 
> 

* unb...@ar... wrote:
> does lcd4linux work with ubuntu?

Yes.

> I cannot compile the files

There's a package in dapper.

Norbert

Thread: [lcd4linux] Lcd4Linux and ubuntu

lcd4linux-users