I understood it should be done using the /etc/asound.conf for all users on any machine and the hidden config file in the user's home directory that is the equivalent of asound.conf but for specific user. That is if you are using ALSA

On 10/12/2012 07:20 PM, Bruno Tucunduva Ruviaro wrote:
Hi Tim,

Thanks for your reply. How exactly do I set a fixed order of soundcards? I read somewhere that I should change /etc/modprobe.d/alsa-base.conf -- is that really the case?

Here's the output of some terminal commands:

ruviaro@bruno-toshiba:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC861-VD Analog [ALC861-VD Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: VSL [AudioBox 1818 VSL], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

ruviaro@bruno-toshiba:~$ cat /proc/asound/modules
 0 snd_hda_intel
 1 snd_usb_audio

ruviaro@bruno-toshiba:~$ lspci -v | grep -A7 -i "audio"
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
    Subsystem: Toshiba America Info Systems Device ff01
    Flags: bus master, fast devsel, latency 0, IRQ 44
    Memory at dc440000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: snd_hda_intel
    Kernel modules: snd-hda-intel

Thank you very much,

Bruno


On Fri, Oct 12, 2012 at 5:00 AM, <[email protected] <mailto:[email protected]>> wrote:

    Send Ubuntu-Studio-users mailing list submissions to
    [email protected]
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    Message: 1
    Date: Fri, 12 Oct 2012 06:29:39 +0200
    From: Tim Krone <[email protected] <mailto:[email protected]>>
    To: Ubuntu Studio Users Help and Discussion
            <[email protected]
    <mailto:[email protected]>>
    Subject: Re: USB interface stopped working after update
    Message-ID:
    <[email protected]
    <mailto:[email protected]>>
    Content-Type: text/plain; charset="utf-8"

    Hey Bruno,

    have you got any other soundcard enabled on your machine like the
    onboard chip? Try lspci | grep audio to find soundcards.
    So when there are more then one card or even midi interfaces you
    must set a fixed card order.

    Possibly you can also try gladish instead of qjackctl.

    Regards
    Tim



    Bruno Tucunduva Ruviaro <[email protected]
    <mailto:[email protected]>> schrieb:

    >Hi,
    >
    >Back to an unresolved issue I posted sometime ago. I did some more
    >tests this week and found out the following (I did this test
    twice and
    >obtained the same results in two different machines):
    >
    >1) I install Ubuntu Studio 12.04 from scratch;
    >2) I try it with my PreSonus AudioBox 1818VSL USB interface. Open
    Jack,
    >Jack sees interface, Start Jack, Start Hydrogen, Play a Demo, it all
    >works and I get sound out. Happy!
    >3) I then turn off the computer and the interface. Then turn them
    back
    >on;
    >4) I repeat the steps of #2: open jack, jack sees interface OK, I
    start
    >jack, I start Hydrogen, open a Demo, and... no more sound comes
    out of
    >the interface. I don't even see the meter lights anymore. Still, Jack
    >recognizes it and starts correctly. But no sound anymore.
    >
    >With this, I rephrase my original question. The problem was not a
    >recent software update, as I had thought: now even with a clean,
    fresh
    >install of Ubuntu Studio, the interface works the first time, and
    after
    >rebooting the computer, it never works again.
    >
    >I've tested the audio interface on a Mac computer and it is
    working (in
    >fact I bought this PreSonus recently, it's brand new). If I boot
    Ubuntu
    >studio from a live CD, the interface works again.
    >
    >Any ideas on how to solve this mystery?
    >
    >Thank you very much for any help,
    >
    >Bruno
    >
    >----- Original Message -----
    >From: "Bruno Tucunduva Ruviaro" <[email protected]
    <mailto:[email protected]>>
    >To: [email protected]
    <mailto:[email protected]>
    >Cc: [email protected] <mailto:[email protected]>
    >Sent: Wednesday, September 26, 2012 11:48:08 AM
    >Subject: Re: USB interface stopped working after update
    >
    >Hi,
    >
    >I didn't use synaptic, but I copy below the contents of history.log
    >from /var/log/apt/
    >The interface was working fine until 2012-09-24. After those
    updates it
    >stopped working.
    >Thanks for any help,
    >
    >Bruno
    >
    >- - -
    >
    >Contents of history.log:
    >
    >Start-Date: 2012-09-20 14 <tel:2012-09-20%20%2014>:18:37
    >Commandline: aptdaemon role='role-commit-packages' sender=':1.115'
    >Install: libframe6:i386 (2.2.4-0ubuntu0.12.04.1), libgeis1:i386
    >(2.2.9.2-0ubuntu1), libgrail5:i386 (3.0.6-0ubuntu0.12.04.01,
    automatic)
    >Upgrade: gir1.2-totem-1.0:i386 (3.0.1-0ubuntu21, 3.0.1-0ubuntu21.1),
    >bind9-host:i386 (9.8.1.dfsg.P1-4ubuntu0.2, 9.8.1.dfsg.P1-4ubuntu0.3),
    >dnsutils:i386 (9.8.1.dfsg.P1-4ubuntu0.2, 9.8.1.dfsg.P1-4ubuntu0.3),
    >libart-2.0-2:i386 (2.3.21-1, 2.3.21-1ubuntu0.1), totem-plugins:i386
    >(3.0.1-0ubuntu21, 3.0.1-0ubuntu21.1), evince-common:i386
    >(3.4.0-0ubuntu1.3, 3.4.0-0ubuntu1.4), libdns81:i386
    >(9.8.1.dfsg.P1-4ubuntu0.2, 9.8.1.dfsg.P1-4ubuntu0.3),
    totem-common:i386
    >(3.0.1-0ubuntu21, 3.0.1-0ubuntu21.1), libtotem0:i386
    (3.0.1-0ubuntu21,
    >3.0.1-0ubuntu21.1), apport:i386 (2.0.1-0ubuntu12, 2.0.1-0ubuntu13),
    >python3.2:i386 (3.2.3-0ubuntu3, 3.2.3-0ubuntu3.1), libisccc80:i386
    >(9.8.1.dfsg.P1-4ubuntu0.2, 9.8.1.dfsg.P1-4ubuntu0.3),
    >isc-dhcp-client:i386 (4.1.ESV-R4-0ubuntu5.2, 4.1.ESV-R4-0ubuntu5.5),
    >libgrip0:i386 (0.3.4-0ubuntu2~ubuntu12.04.1, 0.3.5-0ubuntu1~12.04.1),
    >firefox-globalmenu:i386 (15.0+build1-0ubuntu0.12.04.1,
    >15.0.1+build1-0ubuntu0.12.04.1), firefox:i386
    >(15.0+build1-0ubuntu0.12.04.1,
    >15.0.1+build1-0ubuntu0.12.04.1), liblwres80:i386
    >(9.8.1.dfsg.P1-4ubuntu0.2, 9.8.1.dfsg.P1-4ubuntu0.3),
    libevince3-3:i386
    >(3.4.0-0ubuntu1.3, 3.4.0-0ubuntu1.4), libpython3.2:i386
    >(3.2.3-0ubuntu3, 3.2.3-0ubuntu3.1), libbind9-80:i386
    >(9.8.1.dfsg.P1-4ubuntu0.2, 9.8.1.dfsg.P1-4ubuntu0.3),
    >firefox-gnome-support:i386 (15.0+build1-0ubuntu0.12.04.1,
    >15.0.1+build1-0ubuntu0.12.04.1), python-problem-report:i386
    >(2.0.1-0ubuntu12, 2.0.1-0ubuntu13), evince:i386 (3.4.0-0ubuntu1.3,
    >3.4.0-0ubuntu1.4), isc-dhcp-common:i386 (4.1.ESV-R4-0ubuntu5.2,
    >4.1.ESV-R4-0ubuntu5.5), gimp:i386 (2.6.12-1ubuntu1,
    2.6.12-1ubuntu1.1),
    >libgimp2.0:i386 (2.6.12-1ubuntu1, 2.6.12-1ubuntu1.1),
    libisccfg82:i386
    >(9.8.1.dfsg.P1-4ubuntu0.2, 9.8.1.dfsg.P1-4ubuntu0.3),
    >firefox-locale-en:i386 (15.0+build1-0ubuntu0.12.04.1,
    >15.0.1+build1-0ubuntu0.12.04.1), gpgv:i386 (1.4.11-3ubuntu2,
    >1.4.11-3ubuntu2.1), python3.2-minimal:i386 (3.2.3-0ubuntu3,
    >3.2.3-0ubuntu3.1), resolvconf:i386 (1.63ubuntu15, 1.63ubuntu16),
    >python-apport:i386
    >(2.0.1-0ubuntu12, 2.0.1-0ubuntu13), libisc83:i386
    >(9.8.1.dfsg.P1-4ubuntu0.2, 9.8.1.dfsg.P1-4ubuntu0.3), totem:i386
    >(3.0.1-0ubuntu21, 3.0.1-0ubuntu21.1),
    xserver-xorg-input-synaptics:i386
    >(1.6.2-1ubuntu1~precise1, 1.6.2-1ubuntu1~precise2), gimp-data:i386
    >(2.6.12-1ubuntu1, 2.6.12-1ubuntu1.1), apport-gtk:i386
    (2.0.1-0ubuntu12,
    >2.0.1-0ubuntu13), totem-mozilla:i386 (3.0.1-0ubuntu21,
    >3.0.1-0ubuntu21.1), gnupg:i386 (1.4.11-3ubuntu2, 1.4.11-3ubuntu2.1)
    >End-Date: 2012-09-20  14 <tel:2012-09-20%20%C2%A014>:20:51
    >
    >Start-Date: 2012-09-20  14 <tel:2012-09-20%20%C2%A014>:23:42
    >Commandline: aptdaemon role='role-commit-packages' sender=':1.115'
    >Upgrade: libgnomevfs2-0:i386 (2.24.4-1ubuntu2, 2.24.4-1ubuntu2.1),
    >libdbus-1-3:i386 (1.4.18-1ubuntu1, 1.4.18-1ubuntu1.1), dbus:i386
    >(1.4.18-1ubuntu1, 1.4.18-1ubuntu1.1), libgnomevfs2-extra:i386
    >(2.24.4-1ubuntu2, 2.24.4-1ubuntu2.1), tzdata:i386
    >(2012e-0ubuntu0.12.04, 2012e-0ubuntu0.12.04.1), dbus-x11:i386
    >(1.4.18-1ubuntu1, 1.4.18-1ubuntu1.1), libgnomevfs2-common:i386
    >(2.24.4-1ubuntu2, 2.24.4-1ubuntu2.1)
    >End-Date: 2012-09-20  14 <tel:2012-09-20%20%C2%A014>:24:03
    >
    >Start-Date: 2012-09-24  16 <tel:2012-09-24%20%C2%A016>:52:42
    >Commandline: aptdaemon role='role-commit-packages' sender=':1.62'
    >Upgrade: libgs9-common:i386 (9.05~dfsg-0ubuntu4.1,
    >9.05~dfsg-0ubuntu4.2), ghostscript-x:i386 (9.05~dfsg-0ubuntu4.1,
    >9.05~dfsg-0ubuntu4.2), linux-libc-dev:i386 (3.2.0-30.48,
    3.2.0-31.50),
    >software-center:i386 (5.2.5, 5.2.6), libgs9:i386
    (9.05~dfsg-0ubuntu4.1,
    >9.05~dfsg-0ubuntu4.2), ghostscript:i386 (9.05~dfsg-0ubuntu4.1,
    >9.05~dfsg-0ubuntu4.2), ghostscript-cups:i386 (9.05~dfsg-0ubuntu4.1,
    >9.05~dfsg-0ubuntu4.2)
    >End-Date: 2012-09-24  16 <tel:2012-09-24%20%C2%A016>:54:30
    >
    >Start-Date: 2012-09-25  09 <tel:2012-09-25%20%C2%A009>:19:10
    >Commandline: aptdaemon role='role-commit-packages' sender=':1.45'
    >Upgrade: libapt-pkg4.12:i386 (0.8.16~exp12ubuntu10.2,
    >0.8.16~exp12ubuntu10.3), apt-transport-https:i386
    >(0.8.16~exp12ubuntu10.2, 0.8.16~exp12ubuntu10.3), xserver-common:i386
    >(1.11.4-0ubuntu10.7, 1.11.4-0ubuntu10.8), xserver-xorg-core:i386
    >(1.11.4-0ubuntu10.7, 1.11.4-0ubuntu10.8), apt-utils:i386
    >(0.8.16~exp12ubuntu10.2, 0.8.16~exp12ubuntu10.3), apt:i386
    >(0.8.16~exp12ubuntu10.2, 0.8.16~exp12ubuntu10.3), libapt-inst1.4:i386
    >(0.8.16~exp12ubuntu10.2, 0.8.16~exp12ubuntu10.3)
    >End-Date: 2012-09-25  09 <tel:2012-09-25%20%C2%A009>:19:40
    >
    >Start-Date: 2012-09-25  14 <tel:2012-09-25%20%C2%A014>:26:56
    >Commandline: aptdaemon role='role-commit-packages' sender=':1.55'
    >Install: chromium-browser-l10n:i386
    >(20.0.1132.47~r144678-0ubuntu0.12.04.1, automatic),
    >chromium-codecs-ffmpeg:i386 (20.0.1132.47~r144678-0ubuntu0.12.04.1,
    >automatic), chromium-browser:i386
    >(20.0.1132.47~r144678-0ubuntu0.12.04.1)
    >End-Date: 2012-09-25  14 <tel:2012-09-25%20%C2%A014>:27:24
    >
    >On Wed, Sep 26, 2012 at 4:30 AM,
    ><[email protected]
    <mailto:[email protected]>> wrote:
    >
    >
    >
    >    Today's Topics:
    >
    >
    >       3. USB interface stopped working after update
    >          (Bruno Tucunduva Ruviaro)
    >
    >       5. Re: USB interface stopped working after update (Ralf
    Mardorf)
    >
    >
    >
    >    ------------------------------------------
    >    Hi,
    >
    >I have Ubuntu studio 12.04 installed on one laptop, and regular
    Ubuntu
    >on another (also 12.04). Until a few days ago, both systems used to
    >work fine with a PreSonus AudioBox 1818VSL USB interface. All of a
    >sudden, the two laptops are no longer working with this interface. My
    >only guess is that this was caused by some kind of software update (I
    >usually do all required & recommended updates suggested by Ubuntu).
    >
    >To be more precise, Jack still sees the USB interface as before; I am
    >able to start jack with the PreSonus, I see all the ins and outs
    in the
    >connection window. But no sound seems to arrive in the hardware. No
    >sound comes out. I used to see the AudioBox meters lighting up last
    >week; they no longer light up this week. I've tested the audio
    >interface on a Mac computer and it is working. In fact, if I boot
    >Ubuntu studio from a live CD (that is, without any recent
    updates), the
    >interface works again.
    >
    >Has anything like this happened to other people this week? Any
    tips on
    >how to solve the problem?
    >
    >    Thank you very much,
    >
    >    Bruno
    >
    >
    >
    >    ------------------------------
    >
    >    Message: 5
    >    Date: Wed, 26 Sep 2012 09:15:36 +0200
    >    From: Ralf Mardorf <[email protected]
    <mailto:[email protected]>>
    >    To: Ubuntu Studio Users Help and Discussion
    >            <[email protected]
    <mailto:[email protected]>>
    >    Subject: Re: USB interface stopped working after update
    >    Message-ID: <[email protected]>
    >    Content-Type: text/plain; charset="UTF-8"
    >
    >If you upgraded using Synaptic, there'll be a history about the
    >upgraded
    >    packages. Please send a copy of this list.
    >
    >    Regards,
    >    Ralf
    >
    >
    >
    >
    >--
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