"Then downloaded and built latest ALSA driver (1.0.25) from source. Also
applied recent Ubuntu precise-proposed update that was supposed to fix
lack of support for Realtek 280 chipset."
When you install a custom made ALSA driver (which is unsupported by
Ubuntu! ), that overrides the normal kernel, regardless of whether that
comes from the proposed repository or not, and you would therefore not
get the ALC280 patch.
please ensure that "modinfo snd-hda-codec-realtek" points to:
/lib/modules/3.2.0-29-generic/kernel/sound/pci/hda/snd-hda-codec-realtek.ko
by uninstalling things if necessary, then reboot and try again. Thanks.
** Changed in: alsa-driver (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1035715
Title:
[Satellite P850, Realtek ID 280, Speaker, Internal] No sound at all.
However, sound does work if headphone jack is used.
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