[LAU] issue with jackd and USB mouse

[Carlo Ascani]

Hi all,

Jackd does not start if an USB mouse is plugged into my laptop.
I am using an USB Audio card (Alesis IO|2)

Some infos:

Laptop is a Toshiba Satellite A660
Distribution is Ubuntu Linux 11.04

$ uname -a
Linux jaco 2.6.38-8-lowlatency-pae #42+all1~lucid1-Ubuntu SMP PREEMPT
Fri Apr 29 03:15:36 UTC 2011 i686 GNU/Linux

$ lspci | grep USB
00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset
USB2 Enhanced Host Controller (rev 05)
00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset
USB2 Enhanced Host Controller (rev 05)

$ lsusb
Bus 002 Device 005: ID 046d:c03e Logitech, Inc. Premium Optical Wheel Mouse
Bus 002 Device 004: ID 13b2:0008
Bus 002 Device 002: ID 8087:0020
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 04f2:b1e4 Chicony Electronics Co., Ltd
Bus 001 Device 002: ID 8087:0020
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


jackd error when an USB mouse is plugged in;

$ jackd -d alsa -d hw:1 -r 44100
jackdmp 1.9.7
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2011 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
no message buffer overruns
no message buffer overruns
JACK server starting in realtime mode with priority 10
control device hw:1
control device hw:1
audio_reservation_init
Acquire audio card Audio1
creating alsa driver ... hw:1|hw:1|1024|2|44100|0|0|nomon|swmeter|-|32bit
control device hw:1
configuring for 44100Hz, period = 1024 frames (23.2 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 24bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 24bit little-endian
ALSA: use 2 periods for playback
ALSA: could not start playback (Broken pipe)
Cannot start driver
JackServer::Start() failed with -1
Failed to start server
control device hw:1
Released audio card Audio1
audio_reservation_finish
control device hw:1

The same command, without mouse, just works,

Any ideas ?

Thank you

-- 
Carlo Ascani | www.carloratm.org
skype: carloratm
cell: 3202915799