hello,
I've got same issue on my lenovo 3000 n100.
I've tried alsa patch without success and tried all what ubuntu's wiki 
explained.

I don't want to turn off acpi.

Here are my conf details:

#lspci -vv
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition 
Audio Controller (rev 02)
        Subsystem: Lenovo Unknown device 2066
        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: 64 bytes
        Interrupt: pin A routed to IRQ 22
        Region 0: Memory at d2400000 (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

#lspci -nv

00:1b.0 0403: 8086:27d8 (rev 02)
        Subsystem: 17aa:2066
        Flags: bus master, fast devsel, latency 0, IRQ 22
        Memory at d2400000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 2
        Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 
Enable-
        Capabilities: [70] Express Unknown type IRQ 0


#aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC861VD Analog [ALC861VD Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 6: Si3054 Modem [Si3054 Modem]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
[EMAIL PROTECTED]:/home/coip# cat /proc/asound/oss/sndstat
Sound Driver:3.8.1a-980706 (ALSA v1.0.14rc1 emulation code)
Kernel: Linux coinovo 2.6.20-16-generic #2 SMP Wed May 23 01:46:23 UTC 2007 i686
Config options: 0


# cat /proc/asound/oss/sndstat 
Sound Driver:3.8.1a-980706 (ALSA v1.0.14rc1 emulation code)
Kernel: Linux coinovo 2.6.20-16-generic #2 SMP Wed May 23 01:46:23 UTC 2007 i686
Config options: 0

Installed drivers: 
Type 10: ALSA emulation

Card config: 
HDA Intel at 0xd2400000 irq 22

Audio devices:
0: ALC861VD Analog (DUPLEX)

Synth devices: NOT ENABLED IN CONFIG

Midi devices: NOT ENABLED IN CONFIG

Timers:
31: system timer

Mixers:
0: Realtek ALC861-VD

#uname -a
Linux coinovo 2.6.20-16-generic #2 SMP Wed May 23 01:46:23 UTC 2007 i686 
GNU/Linux

thanks for any help

-- 
no sound with lenovo 3000 n100 0768FEG
https://bugs.launchpad.net/bugs/107821
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