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My laptop is running Ubuntu Maverick and sounds works great, but when I connect headphones or external speakers, nothing changes. Sounds keeps coming out just from the laptop speakers. I?ve tried all the devices in the "Sound Preferences" and still nothing. How can I solve this?

My Audio card is:

00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
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migrated from Mar 22 '11 at 22:37

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I don't know which is your laptop but this works on Toshiba Satellite and others.

Problem: Built-in speakers work. Plugging in headphones do not mute speakers.

Audio: Conexant CX20585


edit: /etc/modprobe.d/alsa-base.conf to add:

options snd-hda-intel model=thinkpad

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That worked beautifully! Thanks! – Dbugger Mar 22 '11 at 22:03
Nice this helps :) – laurent Mar 22 '11 at 22:37

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