Hello,
it would be nice if I could control the input channels of my lenovo
laptop (Lenovo R500). These are configured for microphone input, but the
amplifier can be deactivated, so that it can work with the higher
line-in level.
The resulting quality is not good, but at least usable.
The volume control is joint, but the amplifier control are seperated.
With the HDAAnalyser I could find the Nodes (0x17 (rear) and 0x18
(front)) can be used to control the amplification. The setting can be
changed between 0 and 4, where 0 makes it possible to use the input for
line-in, while 4 is better suited for microphone input.
I'm not sure whether it would be better to expose this as a stepped
control or just a switch (amplifier on/off).
These are the loaded modules (from kernel 2.6.31):
snd_usb_audio 74152 3
snd_usb_lib 13904 1 snd_usb_audio
snd_hda_codec_conexant 17684 1
snd_seq_dummy 2748 0
snd_seq_oss 24620 0
snd_hda_intel 24064 9
snd_hda_codec 65724 2 snd_hda_codec_conexant,snd_hda_intel
snd_seq_midi 6232 0
snd_hwdep 6772 3 snd_usb_audio,snd_hda_codec
snd_rawmidi 19600 2 snd_usb_lib,snd_seq_midi
snd_seq_midi_event 6580 2 snd_seq_oss,snd_seq_midi
snd_pcm_oss 33516 0
snd_mixer_oss 13416 1 snd_pcm_oss
snd_seq 44744 7
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_pcm 64872 6
snd_usb_audio,snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_timer 18448 2 snd_seq,snd_pcm
snd_seq_device 6424 5
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd_page_alloc 8556 2 snd_hda_intel,snd_pcm
snd 52452 35
snd_usb_audio,snd_hda_codec_conexant,snd_seq_oss,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_rawmidi,snd_pcm_oss,snd_mixer_oss,snd_seq,snd_pcm,snd_timer,snd_seq_device
soundcore 6876 1 snd
I attached the /proc/asound/card0/codec#0 info to this email. If you
need further information - please ask.
Matthias
Codec: Conexant CX20561 (Hermosa)
Address: 0
Function Id: 0x2
Vendor Id: 0x14f15051
Subsystem Id: 0x17aa20fd
Revision Id: 0x100000
Modem Function Group: 0x2
Default PCM:
rates [0x160]: 44100 48000 96000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Default Amp-In caps: N/A
Default Amp-Out caps: N/A
GPIO: io=4, o=0, i=0, unsolicited=1, wake=0
IO[0]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
IO[1]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
IO[2]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
IO[3]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
Node 0x10 [Audio Output] wcaps 0xc1d: Stereo Amp-Out R/L
Amp-Out caps: ofs=0x4a, nsteps=0x4a, stepsize=0x03, mute=0
Amp-Out vals: [0x4a 0x4a]
Converter: stream=0, channel=0
PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Power: setting=D0, actual=D0
Node 0x11 [Audio Output] wcaps 0xc1d: Stereo Amp-Out R/L
Amp-Out caps: ofs=0x4a, nsteps=0x4a, stepsize=0x03, mute=0
Amp-Out vals: [0x4a 0x4a]
Converter: stream=0, channel=0
PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Power: setting=D0, actual=D0
Node 0x12 [Audio Output] wcaps 0x211: Stereo Digital
Converter: stream=0, channel=0
Digital:
Digital category: 0x0
PCM:
rates [0x160]: 44100 48000 96000
bits [0xe]: 16 20 24
formats [0x5]: PCM AC3
Node 0x13 [Beep Generator Widget] wcaps 0x70000c: Mono Amp-Out
Amp-Out caps: ofs=0x03, nsteps=0x03, stepsize=0x17, mute=0
Amp-Out vals: [0x00]
Node 0x14 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L
Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=0
Amp-In vals: [0x2a 0x2a] [0x2c 0x2c]
Converter: stream=1, channel=0
SDI-Select: 0
PCM:
rates [0x160]: 44100 48000 96000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Power: setting=D0, actual=D0
Connection: 2
0x1d 0x17*
Node 0x15 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L
Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=0
Amp-In vals: [0x30 0x30]
Converter: stream=0, channel=0
SDI-Select: 0
PCM:
rates [0x160]: 44100 48000 96000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Power: setting=D0, actual=D0
Connection: 1
0x18
Node 0x16 [Pin Complex] wcaps 0x400581: Stereo
Pincap 0x0000001c: OUT HP Detect
Pin Default 0x022140f0: [Jack] HP Out at Ext Front
Conn = 1/8, Color = Green
DefAssociation = 0xf, Sequence = 0x0
Pin-ctls: 0xc0: OUT HP
Unsolicited: tag=37, enabled=1
Power: setting=D0, actual=D0
Connection: 2
0x10* 0x11
Node 0x17 [Pin Complex] wcaps 0x40048b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x04, stepsize=0x27, mute=0
Amp-In vals: [0x00 0x00]
Pincap 0x00001224: IN Detect
Vref caps: 50 80
Pin Default 0x61a190f0: [N/A] Mic at Sep Rear
Conn = 1/8, Color = Pink
DefAssociation = 0xf, Sequence = 0x0
Pin-ctls: 0x24: IN VREF_80
Unsolicited: tag=38, enabled=1
Power: setting=D0, actual=D0
Node 0x18 [Pin Complex] wcaps 0x40048b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x04, stepsize=0x27, mute=0
Amp-In vals: [0x00 0x00]
Pincap 0x00001224: IN Detect
Vref caps: 50 80
Pin Default 0x02a190f0: [Jack] Mic at Ext Front
Conn = 1/8, Color = Pink
DefAssociation = 0xf, Sequence = 0x0
Pin-ctls: 0x24: IN VREF_80
Unsolicited: tag=39, enabled=1
Power: setting=D0, actual=D0
Node 0x19 [Pin Complex] wcaps 0x400581: Stereo
Pincap 0x00000014: OUT Detect
Pin Default 0x40f000f0: [N/A] Other at Ext N/A
Conn = Unknown, Color = Unknown
DefAssociation = 0xf, Sequence = 0x0
Pin-ctls: 0x40: OUT
Unsolicited: tag=37, enabled=1
Power: setting=D0, actual=D0
Connection: 2
0x10* 0x11
Node 0x1a [Pin Complex] wcaps 0x400501: Stereo
Pincap 0x00010010: OUT EAPD
EAPD 0x2: EAPD
Pin Default 0x901701f0: [Fixed] Speaker at Int N/A
Conn = Analog, Color = Unknown
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x40: OUT
Power: setting=D0, actual=D0
Connection: 2
0x10* 0x11
Node 0x1b [Pin Complex] wcaps 0x400500: Mono
Pincap 0x00010010: OUT EAPD
EAPD 0x2: EAPD
Pin Default 0x40f001f0: [N/A] Other at Ext N/A
Conn = Unknown, Color = Unknown
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x40: OUT
Power: setting=D0, actual=D0
Connection: 2
0x10* 0x11
Node 0x1c [Pin Complex] wcaps 0x400701: Stereo Digital
Pincap 0x00000010: OUT
Pin Default 0x40f001f0: [N/A] Other at Ext N/A
Conn = Unknown, Color = Unknown
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x00:
Power: setting=D0, actual=D0
Connection: 1
0x12
Node 0x1d [Pin Complex] wcaps 0x40040b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x04, stepsize=0x27, mute=0
Amp-In vals: [0x03 0x03]
Pincap 0x00000020: IN
Pin Default 0x90a701f0: [Fixed] Mic at Int N/A
Conn = Analog, Color = Unknown
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Power: setting=D0, actual=D0
Node 0x1e [Vendor Defined Widget] wcaps 0xf00000: Mono
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