No audio input with Intel HD audio on Dell Inspiron e1405

[ttuttle]

I've got a Dell Inspiron e1405 laptop with an Intel HD Audio chipset. The output for it from lspci -vvv is:

Code: Select all

00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
        Subsystem: Dell Unknown device 01d8
        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-
        Interrupt: pin A routed to IRQ 20
        Region 0: Memory at dfebc000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [60] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [70] Express Unknown type IRQ 0
                Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag-
                Device: Latency L0s <64ns, L1 <1us
                Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
                Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
                Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
                Link: Supported Speed unknown, Width x0, ASPM unknown, Port 0
                Link: Latency L0s <64ns, L1 <1us
                Link: ASPM Disabled CommClk- ExtSynch-
                Link: Speed unknown, Width x0
        Capabilities: [100] Virtual Channel
        Capabilities: [130] Unknown (5)

It doesn't seem to work very well at all with ALSA. I have audio output, but I don't have the normal cornucopia of mixer settings (PCM, Line, Mic, Phone, Video, CD-ROM, PC Speaker, etc...), just Master (volume/mute), Capture (volume/capture), Capture Mux (volume), Capture Mux Capture (volume), and Input Source (settable only to "Mic"). (Note that changing Capture Mux changes Capture Mux Capture to the same volume, but changing Capture Mux Capture leaves Capture Mux untouched.)

And worse, I get no audio input. If I don't set anything to capture, /dev/sound/audio doesn't return any data. If I set Capture to capture, I get strange noise that varies in volume based on the Capture and Capture Mux volumes, but not the Capture Mux Capture volume. (It also varies slightly based on what is plugged into the Mic jack, but not to the extent that it sounds like real but garbled audio.) But most importantly, there is no Mic volume control, and so I can't select the Mic as a capture input!

Everything else (AFAIK) on this laptop works great, and I'd love to solve this problem. Any help that y'all could offer would be greatly appreciated.

[ttuttle]

Alright, I've gotten a bit further along.

I re-emerged all the alsa-* 1.0.13_rc2, packages, and I've got working audio input, but it's got other problems. First, occasionally the two stereo channels of the audio input will be offset a bit. Not a big problem. Second, jack sense doesn't work. If headphones aren't plugged in when the module is loaded, the laptop's internal speakers will stay on all the time, even if I plug headphones in later. And, conversely, if headphones are plugged in, the speakers will never turn on.

[ttuttle]

Alright, I'm just an idiot.

All of it (audio in *and* jack sense) seems to be working with the drivers included with 2.6.18.

Have a nice day.