Comment 19 for bug 1020338

Revision history for this message
iLugo (isra) wrote : Re: Mixxx crashes with Reloop Digital Jockey 2 Master edition when pressing play button

I have done as instructed in the last entry of http://www.mixxx.org/wiki/doku.php/troubleshooting , i.e., created a udev rules file: /etc/udev/rules.d/15-mixxx-usb.rules with the following contents:

# Allow scannining USB devices
SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", GROUP="mygrouphere"

# Allow communicating with HID devices
ATTRS{bInterfaceClass}=="03", GROUP="mygrouphere", MODE="0660"

Then: "sudo chmod 644 /etc/udev/rules.d/15-mixxx-usb.rules"
Then: "sudo stop udev"
Then: "sudo start udev"
(ubuntu's way for sudo /etc/init.d/udev restart )
Then log off then log on again

I disconnected the Reloop device, then reconnected it. Then did dmesg, and the relevant line (last) is:
[19124.876038] usb 2-3: new high speed USB device number 5 using ehci_hcd

Then: "amidi -l", "aseqdump -l" and "aconnect -i" yield exactly the same output as the original experiment above (see attachments).

Then "lsub -v" (no sudo) yields (for the Bus 002 Device 003: ID 200c:1009 ) exactly the same output as the above attachment sudo_lsub_-v.txt - at least now it is not necessary to do sudo, thanks to the above udev rule.

Then if I run Mixxx, all remains the same: the Reloop controller is not shown in the Preferences -> MIDI Controllers section, and I can use Mixxx, but no controller (as long as I do not enable the midi Through port, then Mixxx crashes).

Running out of ideas.... so far it would seem as if Linux does not recognizes it and needs a driver, even in Ubuntu 12.04 with kernel 3.2.0-23.... unless I have something wrong with my PC's hardware (but in dualbooting in Windows/Traktor it works).

I still find strange that the Interface Edition would be recognized but not the Master Edition... I would like to know what is the driver that the Interface Edition is using, or by which mechanism that version works. I have seen posts in the forum like this http://mixxx.org/forums/viewtopic.php?f=7&t=1226&p=14638&hilit=reloop#p7754 where the user Jones seems to know about the Master edition.