sound stops working until reboot

[ill]

in xubuntu 12.04, using optical output, the sound will randomly stop working until I reboot or restart pulseaudio.
---
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: ill 1696 F.... pulseaudio
 /dev/snd/controlC0: ill 1696 F.... pulseaudio
DistroRelease: Ubuntu 13.04
InstallationDate: Installed on 2012-12-27 (156 days ago)
InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
MarkForUpload: True
NonfreeKernelModules: nvidia
Package: pulseaudio 1:3.0-0ubuntu6
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 3.8.0-22.33-generic 3.8.11
Tags: raring
Uname: Linux 3.8.0-22-generic x86_64
UpgradeStatus: Upgraded to raring on 2013-05-07 (25 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 05/30/2012
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F6
dmi.board.name: GA-970A-UD3
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF6:bd05/30/2012:svnGigabyteTechnologyCo.,Ltd.:pnGA-970A-UD3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-970A-UD3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-970A-UD3
dmi.sys.vendor: Gigabyte Technology Co., Ltd.

[Book 'em Dano (heymrdjd)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We need some more information from you before we can start working on this bug.

Please include the information requested from the "Reporting Sound Bugs" section of https://wiki.ubuntu.com/DebuggingSoundProblems as separate attachments.

If you are using Karmic or later this information can be gathered for you automatically using the command 'apport-collect -p alsa-base' 1053209.

[ill (illumilore)]

$ 'apport-collect -p alsa-base' 1053209
apport-collect -p alsa-base: command not found

[papukaija (papukaija)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This bug did not have a package associated with it, which is important for ensuring that it gets looked at by the proper developers. You can learn more about finding the right package at https://wiki.ubuntu.com/Bugs/FindRightPackage . I have classified this bug as a bug in pulseaudio.

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://help.ubuntu.com/community/ReportingBugs.

[papukaija (papukaija)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We need some more information from you before we can start working on this bug.

Please include the information requested from the "Reporting Sound Bugs" section of https://wiki.ubuntu.com/DebuggingSoundProblems as separate attachments.

If you are using Karmic or later this information can be gathered for you automatically using the command 'apport-collect 1053209.

[ill (illumilore)]

$ apport-collect 1053209.

** (apport-gtk:30680): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-gekGoSpnPY: Connection refused
Usage: apport-collect <report number>

apport-collect: error: You need to specify a report number to update

[papukaija (papukaija)]

Thank you for your message. Could you please try running the apport command without the dot at the end? Thanks.

[ill (illumilore)]

$ apport-collect 1053209

** (apport-gtk:11913): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-BIKm8FCXl5: Connection refused
ERROR: The launchpadlib Python module is not installed. This functionality is not available.

[papukaija (papukaija)]

Could you please rerun the apport command after installing the missing package by running the command below in the terminal?

sudo aptitude install python-launchpadlib

Thanks in advance.

[ill (illumilore)]

apport information

[ill (illumilore)]

apport information

[ill (illumilore)]

apport information

[ill (illumilore)]

apport information

[papukaija (papukaija)]

Thank you for providing the requested information. However, this bug is still unconfirmed and is marked as such. Thanks.

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 12.04 (precise) reached end-of-life on April 28, 2017.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test.

[Launchpad Janitor (janitor)]

[Expired for pulseaudio (Ubuntu) because there has been no activity for 60 days.]