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 attached, 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">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 class="h5"> 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 class="h5"> 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 class="im"> <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 class="im"> 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 class="im"> 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 class="im"> 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 class="im"> 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 class="h5"> >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 class="im"> <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 class="im"> >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 class="h5"> <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>