Hi, bug reports for the arduino core and internal libraries go to
http://code.google.com/p/arduino/issues/list

The code itself is at
https://github.com/arduino/Arduino

(I really don't know why code and issues list are kept in two different places...)

Eberhard

Hi,
I think there are maybe 2-3 questions a week that can be said to be truly linux-specific.  
The rest is :
"I'm on <insert OS-flavour here> and the Hardware doesn't work / IDE doesn't work."
Nothing is gained if those people simply post any question into a forum because it deals witrh their OS.  
The only change I would really appreciate is a sticky topic that says :
"Please tell us what operation system are you on, when posting a question."
Because that is very often the first reply to  a new topic.

Eberhard

This is what is causing the trouble. But I don't really know why this is happening.

On my Ubuntu 10.04 the librxtx-java library does not create any lock files at all (with or without arduino board).

Some shots in the dark:
Remove the package librxtx-java and do a fresh install with a reboot inbetween

Try running arduino as root (sudo arduino) just to test if it makes any difference.

Are you on 32bit or 64bit ubuntu?

Eberhard

I don't know what else could be wrong.

You havn't posted the startup messages of the IDE yet.

Eberhard

Ok,
now what is the output of the 'groups' command?
It should list you as a member of group dialout

Code:

wayoda@rebooter:~$ groups
wayoda adm dialout cdrom plugdev lpadmin admin sambashare

if not add yourself to this group

Code:

sudo adduser blaise dialout

and start the IDE to check if you can now see the board
Eberhard

Hi,
 sorry I didn't check what I typed, missed a slash

ls -l /dev/ttyUSB*

Eberhard

Hi,
OpenJdk works fine for most arduino users. If there are problems with this version they are mostly related to graphics or window-menus not working.

The alternative is to use the sun-java6-jre package (install, then run the update-alternatives line again to select it).

Please have a look at the IDE's startup messages again. Are there any error reports.

The Serial Ports Menu is only populated when the Arduino is plugged in. It takes a few seconds for the /dev/ttyUSB* entry to be added to the menu.

Please show us the output of ls -l /devttyUSB*

Eberhard

Hi,
the output says the arduino is detected by the operating system so it should also be detected by the IDE.

Which java version is installed on your machine?

Code:

sudo update-alternatives --config java

Are there any error messages printed to the console window if you start up the IDE from the commandline.

Eberhard
 

Hi,
try this:
Start up your computer
Open a console window
Run command "sudo dmesg -c" which prints and clears the kernel log messages since startup
Now plug the arduino board into an USB port
Run command "dmesg" in the console (no need to do this as root this time )
Post the output of the command it should look something like this

Code:

[ 1700.510090] usb 1-5.5: new full speed USB device using ehci_hcd and address 6
[ 1700.626476] usb 1-5.5: configuration #1 chosen from 1 choice
[ 1700.670375] usbcore: registered new interface driver usbserial
[ 1700.671013] USB Serial support registered for generic
[ 1700.671937] usbcore: registered new interface driver usbserial_generic
[ 1700.671941] usbserial: USB Serial Driver core
[ 1700.682074] USB Serial support registered for FTDI USB Serial Device
[ 1700.682788] ftdi_sio 1-5.5:1.0: FTDI USB Serial Device converter detected
[ 1700.682887] usb 1-5.5: Detected FT232RL
[ 1700.682891] usb 1-5.5: Number of endpoints 2
[ 1700.682894] usb 1-5.5: Endpoint 1 MaxPacketSize 64
[ 1700.682896] usb 1-5.5: Endpoint 2 MaxPacketSize 64
[ 1700.682899] usb 1-5.5: Setting MaxPacketSize 64
[ 1700.683228] usb 1-5.5: FTDI USB Serial Device converter now attached to ttyUSB0
[ 1700.683252] usbcore: registered new interface driver ftdi_sio
[ 1700.683255] ftdi_sio: v1.5.0:USB FTDI Serial Converters Driver

Eberhard

Do you serve spam - I could realy use some?

[glow]Don't blame me! YOU asked for it![/glow]

Hi,
as you might know an arduino-sketch (pde-file) has to be preprocessed by the IDE to turn it into plain C-code that is handed over to the compiler.
This involves  searching for all library-include statements in the main pde-file, and adding a compiler-directive to have them included in the resulting upload-code.

But the arduino-preprocessor does not do this for your extra *.h or .*cpp in your sketch. So what you are trying is not possible (with the current arduino-IDE version).

Eberhard

A possible reason for this is mentioned in the Release Notes for 0019:

ARDUINO 0019 - 2010.09.03

[core / libraries]

* Revised Ethernet library (by Christian Maglie).  This depends on the
  new SPI library, so existing sketches will need: #include <SPI.h>
  added to the top of their code.

Hi,
libraries go into your sketchbook directory.

On my machine the sketchbook folder is in /home/wayoda/sketchbook

Create a new directory on ypour machine
/home/<your user name>/sketchbook/libraries
and install the libs into this directory

You should at least read this page here
http://arduino.cc/en/Guide/Environment

Eberhard

Here is where your RAM goes:

http://www.nongnu.org/avr-libc/user-manual/FAQ.html#faq_flashstrings

in this is the way to avoid it
http://www.nongnu.org/avr-libc/user-manual/FAQ.html#faq_rom_array

(it's progmem you need in the end ... )
Eberhard

I've just encountered a problem similar to this (on my fresh install of Debian 5/Lenny) and fixed it by installing the following:

gcc
gcc-avr
avr-libc
avrprog
avrdude

Some of those probably don't need to be installed but I just installed the lot and it seems to work.

You don't need avrprog, but all the others must be installed to run the IDE on Linux
Eberhard