(In reply to Raymond from comment #25) > seem default sample 16 bits has no effect on format , pulseaudio prefer 32 > bits
No, it does. I have these options uncommented in my daemon.conf: default-sample-format = s32le default-sample-rate = 48000 I have them enabled for some time and PA startup logs were provided with them on. If that's wrong tell me and I'll provide logs without them. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1315212 Title: [CA0106 - CA0106, playback] Playback problem - Surround dies, no valid output Status in ALSA driver: Confirmed Status in alsa-driver package in Ubuntu: Incomplete Bug description: This is tested against a Creative Labs Sounblaster live! (sb0410) card and a SoundBlaster Audigy se (sb0570). Both of them behave strangely, output coming through some, but not all speakers, etc. This was working in 13.10 under the sb0410. the ca0106 driver is the same for both cards. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic i686 ApportVersion: 2.14.1-0ubuntu3 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: joshp 30385 F.... pulseaudio /dev/snd/controlC0: joshp 30385 F.... pulseaudio CurrentDesktop: Unity Date: Thu May 1 21:37:12 2014 InstallationDate: Installed on 2014-04-28 (3 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140417) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:CA0106 failed Symptom_Card: Built-in Audio - Intel ICH6 Symptom_Type: None of the above Title: [CA0106 - CA0106, playback] Playback problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/03/2006 dmi.bios.vendor: Dell Inc. dmi.bios.version: A08 dmi.board.name: 0G8310 dmi.board.vendor: Dell Inc. dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA08:bd03/03/2006:svnDellInc.:pnOptiPlexGX280:pvr:rvnDellInc.:rn0G8310:rvr:cvnDellInc.:ct3:cvr: dmi.product.name: OptiPlex GX280 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/alsa-driver/+bug/1315212/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp