[Bug 42600] Re: Microphone does not work on Dell Inspiron 630m

[danuel]

Gateway laptop M-6319 microphone doesn't work at all.

$ lspci -vv -s 00:1b.0
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
	Subsystem: Gateway 2000 Unknown device 0380
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 22
	Region 0: Memory at fa500000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>

Max volume was also too low, and now seems better when I added to the end of /etc/modprobe.d/alsa-base the following line
options snd-hda-intel model=ref

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Microphone does not work on Dell Inspiron 630m
https://bugs.launchpad.net/bugs/42600
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