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Talk:LLA, OpenDMX USB and Q Light Controller Tutorial

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Is this tutorial minded on a specific interface? That's what the title says :) Although the procedure is similar for other devices.

What is "Erwin Rol's driver" meant to do? (is it to support some specific hardware that is not supported directly by LLA?) LLA uses the driver to support the enttec open dmx.

The first time QLC is run int the tutorial, it is run as root. Why? Good question - this should be removed. I think it was probably added to get around any permissions problems with the devices but this isn't the way to solve the problem.

It would be nice if the intro explained what you can achieve over a default installation of LLA+ QLC from the repositories.

Problems regarding install under kubuntu

Hi there!

I've got a problem while trying to follow the install tutorial. At first, not the device /dev/dmx is created but /dev/dmx0

Secondly, when I try to start the llad, the daemon aborts in the artnet region:

Failed to open lla-artnet.conf:  No such file or directory
terminate called after throwing an instance of 'std::logic_error'
 what():  basic_string::_S_construct NULL not valid
Aborted

Any idea what this could be? Thanks, CJ --79.245.72.170 15:18, 1 June 2008 (PDT)

Solution found ?

Hi CJ,

Did you manage to get it working in the mean time ?

I have exactly the same problem.

Regards,

Bruno

Same problem

I had tried to compile it from source or to use the debian packages. but in both situations, I get the same problems:


lla_plugin_info lla_plugin_info: error while loading shared libraries: liblla.so.1: cannot open shared object file: No such file or directory


OR


llad -d 3 -f -s Failed to open lla-universes.conf: No such file or directory Loaded plugin StageProfi Plugin Loaded plugin UsbPro Plugin Loaded plugin Dummy Plugin Loaded plugin OpenDmx Plugin Loaded plugin ArtNet Plugin Trying to start StageProfi Plugin Failed to open lla-stageprofi.conf: No such file or directory StageProfiWidget: could not connect Connection refused StageProfiPlugin: failed to connect to StageProfi Device Started StageProfi Plugin Trying to start UsbPro Plugin Failed to open lla-usbpro.conf: No such file or directory UsbProPlugin: failed to connect to /dev/ttyUSB0 Started UsbPro Plugin Trying to start Dummy Plugin Failed to open lla-dummy.conf: No such file or directory Installed device Started Dummy Plugin Trying to start OpenDmx Plugin Failed to open lla-opendmx.conf: No such file or directory Started OpenDmx Plugin Trying to start ArtNet Plugin Failed to open lla-artnet.conf: No such file or directory terminate called after throwing an instance of 'std::logic_error'

 what():  basic_string::_S_construct NULL not valid

Aborted

works for me now!

first, you have to use an older version of lla (0.2.1). second, when you get the error

error while loading shared libraries: liblla.so.1: cannot open shared object file: No such file or directory

you have to set symbolic linksfrom the newer lib-path (usr/local/lib) to tne older path (usr/lib)

for example: ln -s /usr/local/lib/liblla.so.1 /usr/lib/liblla.so.1


Greets Claudio

This is what I did to make it work

So I had the same error with Failed to open lla-artnet.conf,

I found that in ~/.lla/ there was only one config file, and no lla-artnet.conf

so I booted up the live cd and explored in /root/.lla/ is the .conf files for lla I made a tar of that directory and copied it, and extracted and it worked,

anyways here is a link to the lla config files [1]

Jason

why run llad as root?

In the section "put it all togethere", all the lla commands are run with (graphical) sudo, but is this necessary, even with Erwin Rol's driver for the Linux kernel? Can someone with a Enttec Open DMX interface check this?

The default port for the web interface is 80. Sub-1024 port assignments require root access. Speaking of which, if anyone knows the way to remap that port, I'd be grateful.

git-clone

you may want to replace git-clone by git clone

cant find build directory on ubuntu

the error is make -C /lib/modules/2.6.28-17-server/build SUBDIRS=/home/user/dmx-software/dmx_usb_module modules

make: *** /lib/modules/2.6.28-17-server/build: No such file or directory. Stop.

make: *** [default] Error 2

what I did to fix it

sudo apt-get install linux-headers-$(uname -r)

then it worked

Jason


I've incorporated this suggestion into the article (since I needed to do the same on Debian 5). Turiphro 02:44, 14 November 2011 (UTC)