On Vostro 3360 same problem
System somehow detects 2 mics - Inetrnal Microphone and Microphone.
Alsamixer shows that Microphone volume is 0, but increasing it does not help.
By the way, alsa in 13.04 is glitchy - system sounds come with creaks
and noises.
lpspci output:
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family
High Definition Audio Controller (rev 04)
Subsystem: Dell Device 055c
Flags: bus master, fast devsel, latency 0, IRQ 44
Memory at d0610000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [100] Virtual Channel
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https://bugs.launchpad.net/bugs/1127699
Title:
Internal microphone does not working in Dell 3420 with Ubuntu Raring
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