the default amp-in is 3 step of 10dB
those volume controls are mic boost instead of capture volume
Default Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
Node 0x0a [Pin Complex] wcaps 0x400583: Stereo Amp-In
Control: name="Mic Jack Mode", index=0, device=0
ControlAmp: chs=0, dir=In, idx=0, ofs=0
Control: name="Mic Capture Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Control: name="Mic Jack", index=0, device=0
Amp-In caps: N/A
Amp-In vals: [0x00 0x00]
Pincap 0x0001173c: IN OUT HP EAPD Detect
Vref caps: HIZ 50 GRD 80
EAPD 0x2: EAPD
Pin Default 0x03a11020: [Jack] Mic at Ext Left
Conn = 1/8, Color = Black
DefAssociation = 0x2, Sequence = 0x0
Pin-ctls: 0x24: IN VREF_80
Unsolicited: tag=03, enabled=1
Power: setting=D0, actual=D0
Connection: 3
0x13* 0x14 0x1c
Node 0x0f [Pin Complex] wcaps 0x400483: Stereo Amp-In
Control: name="Dock Mic Capture Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Control: name="Dock Mic Jack", index=0, device=0
Amp-In caps: N/A
Amp-In vals: [0x00 0x00]
Pincap 0x00000024: IN Detect
Pin Default 0x23a1102e: [Jack] Mic at Sep Left
Conn = 1/8, Color = Black
DefAssociation = 0x2, Sequence = 0xe
Pin-ctls: 0x20: IN
Unsolicited: tag=04, enabled=1
Power: setting=D0, actual=D0
Node 0x11 [Pin Complex] wcaps 0x400483: Stereo Amp-In
Control: name="Internal Mic Capture Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Amp-In caps: N/A
Amp-In vals: [0x03 0x03]
Pincap 0x00000024: IN Detect
Pin Default 0xd5a30130: [Both] Mic at Int Top
Conn = ATAPI, Color = Unknown
DefAssociation = 0x3, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Unsolicited: tag=00, enabled=0
Power: setting=D0, actual=D0
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/993196
Title:
[Dell E6420] Mic not working in Ubuntu 12.04
Status in “alsa-driver” package in Ubuntu:
Confirmed
Bug description:
The internal mic of my laptop is not working in Skype and doesn't show
up under Input in the Sound settings.
Internal speakers are working fine.
The microphone of a USB headset is working fine.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/993196/+subscriptions
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