hda-intel on macbook: unknown model for ACL882

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Hi all,


I wonder if the latest macbooks (rev3) are supposed to work?

I have tried vanilla linux 2.6.21.5 and 2.6.22-rc6.

I've also downloaded the latest tree I could find from
rsync://alsa.alsa-project.org/hg, compiled alsa-driver.

I also found this awkward source, providing various documents and
drivers: ftp://209.216.61.149/pc/audio/

The linux-tarball 4.06a provides alsa-drivers "1.0.14-4.06a", which
looks somewhat more recent than the 1.0.14(?) I got from rsync.


The snd-hda-module loads with the following message:

| kernel: hda_codec: Unknown model for ALC882, trying auto-probe from BIOS...
| kernel: ALSA /usr/src/alsa/alsa-driver/pci/hda/hda_codec.c:2339: autoconfig: line_outs=1 (0x14/0x0/0x0/0x0/0x0)
| kernel: ALSA /usr/src/alsa/alsa-driver/pci/hda/hda_codec.c:2343:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
| kernel: ALSA /usr/src/alsa/alsa-driver/pci/hda/hda_codec.c:2347:    hp_outs=1 (0x15/0x0/0x0/0x0/0x0)
| kernel: ALSA /usr/src/alsa/alsa-driver/pci/hda/hda_codec.c:2355:    inputs: mic=0x18, fmic=0x0, line=0x1a, fline=0x0, cd=0x0, aux=0x0


I get this error message with all versions. Alsamixer shows
headphone,pcm,front,line,mic,iec958 and three input sources.

With 'front' to 100%, I hear a very VERY silent output through the
headphones. I also noticed that ekiga reacts to mic input, but also
on a very low level it seems.

I have no SPDIF-equippment to test, but the iec958-switch triggers a
red light at the output.

Am I missing something? If the chip is not supported, should it not be
possible to get the chip working with a little tweaking?


Any help greatly appreciated,
Steffen




aplay -l says:

| **** List of PLAYBACK Hardware Devices ****
| card 0: Intel [HDA Intel], device 0: ALC882 Analog [ALC882 Analog]
|   Subdevices: 1/1
|   Subdevice #0: subdevice #0
| card 0: Intel [HDA Intel], device 1: ALC882 Digital [ALC882 Digital]
|   Subdevices: 1/1
|   Subdevice #0: subdevice #0

lspci -vv -nn says:

| 00:1b.0 Audio device [0403]: Intel Corporation 82801H (ICH8 Family) HD Audio Controller [8086:284b] (rev 03)
| 	Subsystem: Apple Computer Inc. Unknown device [106b:00a0]
| 	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: 256 bytes
| 	Interrupt: pin A routed to IRQ 20
| 	Region 0: Memory at 9b500000 (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: Mask- 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)

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