[Bug 59715] Re: alsa snd-hda-intel hp laptops

[Andrew Henry]

I have a workaround for this bug...

Play the movie clip without headphones plugged in, press the mute
button, then plug in the headphones.  Press the mute button again to
unmute.  sound will then only come through headphones.

To reverse the procedure... (must be done otherwise when you remove
headphones, no sound will come through main speakers, but if you plug in
the phones again, sound comes through main speakers)... press the mute
button, then remove the phones then unmute, to get sound through main
speakers.

This worked for me in Feisty Herd 5 on a HP Pavilion dv9297ea with Totem
Movie Player.

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alsa snd-hda-intel hp laptops
https://launchpad.net/bugs/59715