Raymond, I do not use the onboard AC97, so normally it is disabled in BIOS. I reenabled it just for debugging this issue. When the oboard audio is disabled in BIOS, the USB card is the only sound card ALSA sees. Still it reports as hw:1. !default refers to hw:0 by default, so ALSA applications break when no card 0 is present. That's why I overwrite it in /etc/asound.conf.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1208982 Title: USB sound card always reports as hw:1 (even if it is the only one) Status in “alsa-driver” package in Ubuntu: New Bug description: I have a system where the USB sound card is the only sound card in the system (for good reasons). I took me over an hour finding out why I have no sound. Then I found this in /etc/modprobe.d/alsa-base.conf: --- snip --- # Keep snd-usb-audio from beeing loaded as first soundcard options snd-usb-audio index=-2 --- snip --- This line prevents my USB (and only) sound card to report as "card 0", forcing it to report as "card 1" instead -- without any "card 0" being present! To my understanding, sound cards in ALSA get enumerated consecutively, starting with 0, and 0 being the "default card". With this line in /etc/modprobe.d/alsa-base.conf, my system booted with no default sound card present (although my USB card was plugged in). And that is exactly what I got: no sound, and lots of headache. I believe that this is a bug. It obviously is related to #46996, where a user argues that he does not want his USB card to appear as card 0. I strongly argue against this, at least if the USB card is the *only* card in the system. WHAT HAPPENS: - I have a system with no internal/onboard sound card. - I plug in a USB sound card and reboot. - I have no sound at all. Alsamixer and other applications break, because they cannot access the "default" sound card (i.e. card 0). - After lots of reading and debugging (only feasible for advanced users), I discover the line in /etc/modprobe.d/alsa-base.conf. - After some more reading, I manage to create /etc/asound.conf to make card 1 the default. - After that I have sound- WHAT I EXPECT (and what happens in windows, and probably other OSes/distros): - I have a system with no internal/onboard sound card. - I plug in a USB sound card and reboot. - I have sound. I believe this is a bug that instantly drives not so advanced users back to windows. Cross Reference: #46996 ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-27.40-generic 3.8.13.4 Uname: Linux 3.8.0-27-generic i686 ApportVersion: 2.9.2-0ubuntu8.1 Architecture: i386 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-id', '/dev/snd/controlC1', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1c', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D4p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Aug 6 20:49:21 2013 MarkForUpload: True PackageArchitecture: all ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver UpgradeStatus: Upgraded to raring on 2013-05-06 (92 days ago) dmi.bios.date: 04/23/2004 dmi.bios.vendor: FUJITSU SIEMENS // Phoenix Technologies Ltd. dmi.bios.version: 4.06 Rev. 1.09.1562 dmi.board.name: D1562 dmi.board.vendor: FUJITSU SIEMENS dmi.board.version: S26361-D1562 dmi.chassis.type: 6 dmi.chassis.vendor: exone dmi.modalias: dmi:bvnFUJITSUSIEMENS//PhoenixTechnologiesLtd.:bvr4.06Rev.1.09.1562:bd04/23/2004:svnexone:pnD156200:pvr:rvnFUJITSUSIEMENS:rnD1562:rvrS26361-D1562:cvnexone:ct6:cvr: dmi.product.name: D156200 dmi.sys.vendor: exone To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1208982/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
