I'm seeing a similar issue with a similar setup. I've got a media center connected to a receiver via HDMI. Sometimes when I'm playing audio and power-cycle devices in the chain (TV, receiver, etc), pulse will stop playing audio. I don't get any errors or anything, and issuing pulseaudio -k will bring it all back.
I tried commenting out the module-suspend-on-idle module. It seemed to work at first, but I eventually got into a state where PA applications complained about not being able to play back, and audio went silent. I think this could be an ALSA issue, but it's quite difficult to debug. Has anyone else come up with a solution to this problem? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/884336 Title: [Oneiric] HDMI output does not work immediately Status in PulseAudio: Unknown Status in pulseaudio package in Ubuntu: Invalid Bug description: In Oneiric, the output of 5.1 sound (not AC3 passthrough, but multi- channel PCM) via the HDMI connector of my onboard Intel graphics card is finally working. This is really great! For this to work, I have configured Pulseaudio to use the "Digital Surround 5.1 (HDMI) Output". The HDMI output of my computer is connected to a 5.1 receiver. However, there is one nuisance: Whenever I start playing sound on the computer (e.g., rhythmbox or VLC, both playing via PulseAudio), I hear no sound. On my receiver I have to re-select the input source for the computer, which seems to initiate a HDMI handshake (it lasts 3 seconds). Only after this I am able to hear sound. If I press pause and continue in Rhythmbox, the sound continues fine. If I stop and restart Rhythmbox, I have to do the above procedure again. The same is true for VLC and probably for all other players. While playing around, I have noticed that sound is also working after killing pulseaudio while playing something in Rhythmbox. When the connection to Pulseaudio is killed, Rhythmbox tries a fallback to ALSA. As the Pulseaudio daemon was immediately restarted, this will result in Rhythmbox being connected via the ALSA plugin (before the connection was direct). It seems that Pulseaudio is doing the necessary things here, because after this I do hear sound (as long as Rhythmbox runs). However, this trick does not work for other players like VLC which don't fall back to ALSA. Note that while for me this is just a nuisance, it may be a real blocker for other users. As long as you don't try to fiddle with the receiver inputs while playing sound on the computer, you hear absolutely nothing via HDMI. This includes the sounds from the speaker test dialog of Pulseaudio. I guess a lot of users would give up and think that HDMI output is broken in Ubuntu. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: pulseaudio 1:1.0-0ubuntu3 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Uname: Linux 3.0.0-12-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu3 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: philipp 7706 F.... pulseaudio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xfe520000 irq 50' Mixer name : 'Intel CougarPoint HDMI' Components : 'HDA:10ec0892,80862002,00100302 HDA:80862805,80862805,00100000' Controls : 31 Simple ctrls : 16 Date: Mon Oct 31 18:07:22 2011 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110426) ProcEnviron: LANGUAGE=de:en PATH=(custom, no user) LANG=de_DE.UTF-8 LC_MESSAGES=de_DE.UTF-8 SHELL=/bin/bash SourcePackage: pulseaudio UpgradeStatus: Upgraded to oneiric on 2011-10-31 (0 days ago) dmi.bios.date: 11/15/2010 dmi.bios.vendor: Intel Corp. dmi.bios.version: BLH6710H.86A.0076.2010.1115.1959 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: DH67BL dmi.board.vendor: Intel Corporation dmi.board.version: AAG10189-205 dmi.chassis.type: 3 dmi.modalias: dmi:bvnIntelCorp.:bvrBLH6710H.86A.0076.2010.1115.1959:bd11/15/2010:svn:pn:pvr:rvnIntelCorporation:rnDH67BL:rvrAAG10189-205:cvn:ct3:cvr: To manage notifications about this bug go to: https://bugs.launchpad.net/pulseaudio/+bug/884336/+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
