Thanks, I just tried that now (addressing the soundcard by name directly -- hw:VSL), and still no sound out. Not sure it's a sound card order problem. As you can see in the screenshot here (<a href="https://docs.google.com/open?id=0Bz9f9_VYwS1PeVdleVhvUUx5ZDg">https://docs.google.com/open?id=0Bz9f9_VYwS1PeVdleVhvUUx5ZDg</a>), Jack always "recognizes" the sound card and starts without problem. But no sound goes anywhere in the PreSonus card. - If I switch back to the internal Intel sound card, sound comes out of the built-in speakers. - If I pop in a Live Ubuntu Studio CD and boot from it, the PreSonus interface works just as expected, out of the box. - If I try the PreSonus interface on a Mac, it also works. Any other troubleshooting tips greatly appreciated... thanks! Best, Bruno <div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div class="HOEnZb"><div class="h5"><div class="gmail_quote">On Fri, Oct 12, 2012 at 11:36 AM, Ross Hamblin <<a href="mailto:rosscoad@gmail.com" target="_blank">rosscoad@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi...<div><div> On 13/10/12 07:20, Bruno Tucunduva Ruviaro wrote: </div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div> 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, <<a href="mailto:ubuntu-studio-users-request@lists.ubuntu.com" target="_blank">ubuntu-studio-users-request@lists.ubuntu.com</a> </div></div><div> <mailto:<a href="mailto:ubuntu-studio-users-request@lists.ubuntu.com" target="_blank">ubuntu-studio-users-request@lists.ubuntu.com</a>>> wrote: Send Ubuntu-Studio-users mailing list submissions to <a href="mailto:ubuntu-studio-users@lists.ubuntu.com" target="_blank">ubuntu-studio-users@lists.ubuntu.com</a> </div> <mailto:<a href="mailto:ubuntu-studio-users@lists.ubuntu.com" target="_blank">ubuntu-studio-users@lists.ubuntu.com</a>><div> Message: 1 Date: Fri, 12 Oct 2012 06:29:39 +0200 </div> From: Tim Krone <<a href="mailto:tim@linux-daw.org" target="_blank">tim@linux-daw.org</a> <mailto:<a href="mailto:tim@linux-daw.org" target="_blank">tim@linux-daw.org</a>>><div> To: Ubuntu Studio Users Help and Discussion <<a href="mailto:ubuntu-studio-users@lists.ubuntu.com" target="_blank">ubuntu-studio-users@lists.ubuntu.com</a> </div> <mailto:<a href="mailto:ubuntu-studio-users@lists.ubuntu.com" target="_blank">ubuntu-studio-users@lists.ubuntu.com</a>>><div> Subject: Re: USB interface stopped working after update Message-ID: <<a href="mailto:f61eb0ed-df17-47fb-ba49-29a3c2bee0c2@email.android.com" target="_blank">f61eb0ed-df17-47fb-ba49-29a3c2bee0c2@email.android.com</a> </div> <mailto:<a href="mailto:f61eb0ed-df17-47fb-ba49-29a3c2bee0c2@email.android.com" target="_blank">f61eb0ed-df17-47fb-ba49-29a3c2bee0c2@email.android.com</a>>><div> 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 <<a href="mailto:ruviaro@stanford.edu" target="_blank">ruviaro@stanford.edu</a> </div> <mailto:<a href="mailto:ruviaro@stanford.edu" target="_blank">ruviaro@stanford.edu</a>>> schrieb:<div><div> >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" <<a href="mailto:ruviaro@stanford.edu" target="_blank">ruviaro@stanford.edu</a> </div></div><div> <mailto:<a href="mailto:ruviaro@stanford.edu" target="_blank">ruviaro@stanford.edu</a>>> >To: <a href="mailto:ubuntu-studio-users@lists.ubuntu.com" target="_blank">ubuntu-studio-users@lists.ubuntu.com</a> <mailto:<a href="mailto:ubuntu-studio-users@lists.ubuntu.com" target="_blank">ubuntu-studio-users@lists.ubuntu.com</a>> >Cc: <a href="mailto:bruviaro@scu.edu" target="_blank">bruviaro@scu.edu</a> <mailto:<a href="mailto:bruviaro@scu.edu" target="_blank">bruviaro@scu.edu</a>> >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 > </div></blockquote> <snip> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div> >On Wed, Sep 26, 2012 at 4:30 AM, ><<a href="mailto:ubuntu-studio-users-request@lists.ubuntu.com" target="_blank">ubuntu-studio-users-request@lists.ubuntu.com</a> </div><div><div> <mailto:<a href="mailto:ubuntu-studio-users-request@lists.ubuntu.com" target="_blank">ubuntu-studio-users-request@lists.ubuntu.com</a>>> 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 > </div></div></blockquote> Did you try accessing usb soundcard by name instead of number? ross@meanie:~$ cat /proc/asound/cards 1 [M1010LT ]: ICE1712 - M Audio Delta 1010LT M Audio Delta 1010LT at 0xef80, irq 20 2 [Live ]: EMU10K1 - SB Live! Value [CT4670] SB Live! Value [CT4670] (rev.6, serial:0x201102) at 0xefa0, irq 21 If I use HW:M1010LT or HW:Live in qjackctrl so card position doesn't matter. </blockquote></div> </div></div></blockquote></div>