You have been subscribed to a public bug:
Steps:
1. Install the ubuntu 18.04 on the machine of Lenovo P520.
2. Login system.
3. Plug in an external headset to record and playback in front and rear panel.
Expected result:
Output and input audio should work in front and rear panel.
Actual result:
Front panel audio doesn't work at all.
Just output audio working, input audio does't work in rear panel.
** Affects: alsa-lib (Ubuntu)
Importance: Critical
Status: New
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the audio can't work on Lenovo machines with dual analogue cocecs underubuntu
18.04
https://bugs.launchpad.net/bugs/1768830
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which is subscribed to alsa-lib in Ubuntu.
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