[LAU] issue with jackd and USB mouse

[Harry van Haaren]

Could you post
cat /proc/intterupts too? Perhaps your USB interface & mouse are on the
same IRQ.. that might upset things (though it shouldn't)

Have you tried other physical USB ports for the mouse & interface?

-H

On Saturday, December 17, 2011, Carlo Ascani <carlo.ratm at gmail.com> wrote:
> 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
> _______________________________________________
> Linux-audio-user mailing list
> Linux-audio-user at lists.linuxaudio.org
> http://lists.linuxaudio.org/listinfo/linux-audio-user
>
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