Messages in this thread | | | Date | Mon, 9 Jun 2008 20:59:00 +0100 | From | "Daniel J Blueman" <> | Subject | ALC883 recording troubles... |
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Hi Takashi-san,
I'm experiencing DC offset with the microphone on 2.6.24 (Ubuntu 8.04 LTS x86-64). I can see on Audacity that the DC offset that varies with the recording capture level. Plus, the mixer playback->mic-boost muting enables/disables mic-boost in recording.
It feels like the ALC883 pins aren't configured quite right. The mobo is an Asus P5E-VM with current BIOS [1]
What's the routine to debug this? Would it help to install windows, dump the register space and compare?
Thanks in advance, Daniel
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$ sudo lspci -vvvxxxs 0:1b.0 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02) Subsystem: ASUSTeK Computer Inc. Unknown device 829f 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: 32 bytes Interrupt: pin A routed to IRQ 22 Region 0: Memory at fe9f8000 (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 00: 86 80 3e 29 06 00 10 00 02 00 03 04 08 00 00 00 10: 04 80 9f fe 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 9f 82 30: 00 00 00 00 50 00 00 00 00 00 00 00 0f 01 00 00 40: 01 00 00 07 00 00 00 00 00 00 00 00 00 00 00 00 50: 01 60 42 c8 00 00 00 00 00 00 00 00 00 00 00 00 60: 05 70 80 00 00 00 00 00 00 00 00 00 00 00 00 00 70: 10 00 91 00 00 00 00 10 00 08 10 00 00 00 00 00 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 00 04 00 01 00 00 00 00 31 00 a3 02 00 00 00 00 d0: 61 00 a3 02 00 00 00 00 00 00 00 00 00 00 00 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 86 0f 02 00 00 00 00 00
$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC883 Analog [ALC883 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 1: ALC883 Digital [ALC883 Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 3: ATI HDMI [ATI HDMI] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: HDMI [HDA ATI HDMI], device 3: ATI HDMI [ATI HDMI] Subdevices: 1/1 Subdevice #0: subdevice #0 daniel@veyron:~$ aplay -L default:CARD=Intel HDA Intel, ALC883 Analog Default Audio Device front:CARD=Intel,DEV=0 HDA Intel, ALC883 Analog Front speakers surround40:CARD=Intel,DEV=0 HDA Intel, ALC883 Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=Intel,DEV=0 HDA Intel, ALC883 Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=Intel,DEV=0 HDA Intel, ALC883 Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=Intel,DEV=0 HDA Intel, ALC883 Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=Intel,DEV=0 HDA Intel, ALC883 Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers null Discard all samples (playback) or generate zero samples (capture) default:CARD=U0x46d0x990 USB Device 0x46d:0x990, USB Audio Default Audio Device front:CARD=U0x46d0x990,DEV=0 USB Device 0x46d:0x990, USB Audio Front speakers surround40:CARD=U0x46d0x990,DEV=0 USB Device 0x46d:0x990, USB Audio 4.0 Surround output to Front and Rear speakers surround41:CARD=U0x46d0x990,DEV=0 USB Device 0x46d:0x990, USB Audio 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=U0x46d0x990,DEV=0 USB Device 0x46d:0x990, USB Audio 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=U0x46d0x990,DEV=0 USB Device 0x46d:0x990, USB Audio 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=U0x46d0x990,DEV=0 USB Device 0x46d:0x990, USB Audio 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=U0x46d0x990,DEV=0 USB Device 0x46d:0x990, USB Audio IEC958 (S/PDIF) Digital Audio Output front:CARD=HDMI HDA ATI HDMI Front speakers surround40:CARD=HDMI HDA ATI HDMI 4.0 Surround output to Front and Rear speakers surround41:CARD=HDMI HDA ATI HDMI 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=HDMI HDA ATI HDMI 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=HDMI HDA ATI HDMI 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=HDMI HDA ATI HDMI 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers -- Daniel J Blueman
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