I installed all update, rebooted and now work!
** Changed in: alsa-driver (Ubuntu)
Status: Incomplete = Fix Released
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no audio from dell inspiron 1521
https://bugs.launchpad.net/bugs/487101
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Public bug reported:
The system out of box will not play audio
ProblemType: Bug
Architecture: amd64
ArecordDevices:
List of CAPTURE Hardware Devices
card 0: SB [HDA ATI SB], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1:
** Attachment added: AlsaDevices.txt
http://launchpadlibrarian.net/35972416/AlsaDevices.txt
** Attachment added: AplayDevices.txt
http://launchpadlibrarian.net/35972417/AplayDevices.txt
** Attachment added: BootDmesg.txt
http://launchpadlibrarian.net/35972418/BootDmesg.txt
**