Not sure, but it may have appeared after the fixes for Bug 316430.
** Attachment added: "/var/lib/alsa/asound.state -- in case it helps"
http://launchpadlibrarian.net/21621847/asound.state
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[jaunty regression] no sound with hp laptop and HDA intel
https://bugs.launchpad.net/bugs/320798
You
Same here.
T61p 6457-7WU.
# cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xfe22 irq 17
# aplay /usr/share/sounds/alsa/Noise.wav
Playing WAVE '/usr/share/sounds/alsa/Noise.wav' : Signed 16 bit Little Endian,
Rate 48000 Hz, Mono
** Attachment added: "Output of utils_alsa-info.sh"
http://launchpadlibrarian.net/21592480/alsa-info.txt
** Attachment added: "BootDmesg.txt"
http://launchpadlibrarian.net/21592481/BootDmesg.txt
** Attachment added: "CurrentDmesg.txt"
http://launchpadlibrarian.net/21592482/CurrentDmesg.
