uDMX: No output

[Jonathan Baxter]

Hi all!!
I am running OLA on a laptop with Ubuntu 12.04. I have it set up with the uDMX interface as an Artnet node but it's not outputting to my fixtures. I am getting proper Artnet signal from Jands Vista's Byron software that I can see in the DMX monitor in the webserver but no change in the lights' states. I have libusb installed, have verified the  USBDMX plugin, and have created the udev rule per the opendmx website's instructions for the uDMX interface. And yes, It is selected as an output in the universe settings. At this point, I can't figure out how to fix this so any help is greatly appreciated. Thank you in advance!!!
-Jonathan

[Peter Newman]

You've already broken down the problem and ruled out the ArtNet bit, so we need to concentrate on the uDMX side.

Can you unpatch the ArtNet port and run olad with -l 4 and send DMX directly to the uDMX via the web UI or ola_dmxconsole. To do do, start OLA via the init script or however it's normally run, find the relevant command with ps aux | grep -i olad, then stop olad, and run the same command with -l modified to 4, or appended if not currently present on the command line. Then post the output it gives.

[Jonathan Baxter]

Ok so output of ps aux | grep -i olad (before stopping olad) is:

jonathan@jonathan-Artnet-OLA:~$ ps aux | grep -i olad
olad      3306  0.4  0.2  63560 10744 ?        Sl   15:13   0:04 /usr/bin/olad --syslog --log-level 3 --config-dir /var/lib/ola/conf
jonathan  3337  0.0  0.0   4392   840 pts/0    S+   15:30   0:00 grep --color=auto -i olad

After running this, I interpreted your intructions as you wanting me to replace -i with -l4. I wasn't really sure what the intructions were telling me to do but I ran ps aux | grep -l4 olad and here is the output of that after stopping olad:

jonathan@jonathan-Artnet-OLA:~$ ps aux | grep -l4 olad
(standard input)

Also, I was able to give the lights some input from the web ui but the refresh rate was in the toilet. Another thing, after I was done doing what you told me to do, I re-patched the artnet input and restarted olad and the second it started up again, the lights flickered to life but again, the refresh rate was absolute garbage so at this point, I have absolutely no idea what is going on. See what you can make of that, lol. Thank you!!
-Jonathan

[Peter Newman]

Sorry Jonathan, I forgot it would probably run with the long option --log-level, and the syslog option.

Stop/kill olad, then run this:

/usr/bin/olad --log-level 4 --config-dir /var/lib/ola/conf

Make sure you don't have the web UI open (as it can confuse things), then try your ArtNet stuff and post the output of olad here.

This sounds like some progress given you do actually have control of the lights now, even if the refresh rate isn't very good.