No output on DMX4ALL Nano DMX

[Matthias Haag]

Hi,

I just bought the DMX4ALL Nano DMX Adapter and trying to use it with QLC+ 4.7.4 on Ubuntu 12.04 with your package provided via Sourceforge. Unfortunately I cannot get any DMX output on my device. My user is the "dialout" group as written down in the manual.

How can I find out why it's not working?

Cheers,
Matthias

[Massimo Callegari]

Hi,

1) have you rebooted your computer after installing QLC+ or after adding your user to dialout ? Linux needs to apply the udev rules and actually recognize a user into a group after a new login

2) check if after pluggin the device you actually have /dev/ttyACM. Probably it's /dev/ttyACM0

3) Ubuntu has an annoying "ModemManager" that takes control of /dev/ttyACM. The udev rule I've written should take care of it, but, in case try to kill that evil process

4) what does "echo 0 > /dev/ttyACM0" say ? If it says "permission denied" then it's not good and you need to review the user permissions

[Matthias Haag]

Hi,

sorry for the late reply but I forgot to set an email subscribtion...

1) I did reboot the computer after adding the user to the dialout group.

2) Yes, udev creates /dev/ttyACM0. The device is detected and shown by QLC+. I also tried to create a symbolic link: "ln -s /dev/ttyACM0 /dev/ttyACM" but without any different behaviour.

3) I uninstalled and killed the modem-manager, no effect

4) The echo works, no permission problem.


Matthias

[Matthias Haag]

Same issue with 4.8.0.

I'd really like to go on with QLC+ as I wanted to use it as software for DMX control in a club.

[Massimo Callegari]

Hello Matthias, I'd like to go deeper into this with you.
Can you build QLC+ from sources ?
It's quite easy: https://github.com/mcallegari/qlcplus/w ... uild-HOWTO

There is a debug message that shows if the /dev/ttyACM detection is successful.
We can start from there

[Matthias Haag]

Hi Massimo,

I found the error by luck and got it reproducable...

I use a fresh installed qlc+ on another computer, go to "Inputs/Outputs" and activate the output of my "NanoDMX Interface", go to the "Simple Desk" and voila it works.

Then I go again to "Inputs/Outputs" and open the properties of the "NanoDMX Interface", take a look what's possible as "Mode" and choose (as before) "DMX4ALL". Now the error happens, when I hit "Close" in the properties the "Mode" gets automatically changed to "Pro RX/TX" and nothing works anymore.

In the log I see then:
bool QLCFTDI::open() "NanoDMX Interface" device not found
bool QLCFTDI::clearRts() "NanoDMX Interface" USB device unavailable

Until now the only way to revert this "misconfiguration" is to delete the file ".config/qlcplus/Q Light Controller Plus.conf".

Hope this helps!

Cheers,
Matthias

[TNT_69]

Hello Matthias,

I'm having the same problem on Win7: When I try to configure the Nano DMX to Mode "DMX4ALL", it change to "Pro Rx/TX"; on Protocol it says ENTTEC.

If I change the mode to "Open TX", I got:
Device is operating correctly.
Protocol: Open DMX USB
Manufacturer: DMX4ALL
DMX Channels: 512
DMX Frame Frequency: 30Hz
System Timer Accuracy: Good

... but nothing hapens! I can't controll anything (with DMX4ALL software, everything works OK)

I'm using QLC+ version 4.9.1.
Any help will be appreciated.

[Lars]

Hi TNT_69,

what did you do to configure the nano ?

I can't even see it in QLC+, so where did you find it ?

Thank You for a small hint

Lars

[hutje]

I bought the DMX4ALL Nano DMX and it won't show up in q light. I installed the driver from the site of dmx4all.de and i installed the d22 from the help site of qlcplus. but nothing works.

I have a windows 10 computer

please help?

[mcallegari]

The nanoDMX is not supported on Windows.
http://www.qlcplus.org/features.html