I have a LG A1 Express Dual with intel HDA ALC883.
Running an up to date Karmic. (fixed my ethernet driver issue :))
Never had any sound problems with earlier versions of ubuntu (from 3 years ago
until now).
No sound whatsoever. No headphone, no speaker sound.
After reading through a bunch of forums... the only thing that worked for me
was:
Adding my user and root to the groups "audio", "video", "pulse", "pulse",
"pulse-access"
Adding the following lines to "/etc/modprobe.d/alsa-base.conf"
alias snd-card-0 snd-hda-intel
alias sound-slot-0 snd-hda-intel
options snd-hda-intel model=laptop-eapd
Making sure everything was at max level with "alsamixer".
I think the crux of the matter lies in "model=laptop-eapd" in
/etc/modprobe.d/alsa-base.conf"
Don't know if all these changes are necessary. It's advised to begin adding the
3 lines to "alsa-base.conf" and see if that works.
The sound of the headphones seems a little bit jerky though :(
To try out the changes I figured out that (at the end of my odyssey :D) the
command "alsa force-reload" suffices. No reboot needed.
--
[karmic beta] REGRESSION - sound distortion and no headphone support (HDA
NVidia ALC883)
https://bugs.launchpad.net/bugs/445012
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