Hi Mohan. Can you please try installing "linux-backports-modules-alsa-karmic"
(then reboot) & report your results? A number of audio problems on HP laptops
have been resolved by installing this package.
Also please ensure there are no extra "alsa model quirks" in your
/etc/modprobe.d/alsa-base.conf
Thanks in advance.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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laptop internal speakers not working, however external speaker/headphone works
https://bugs.launchpad.net/bugs/489453
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