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    Subject2.6.25-git regression with snd-hda-intel on Dell XPS M1330, no analog sound
    [Rafael & Matthew: this is a resend - original was sent to wrong 
    linux-kernel address. Also updated, so just ignore the earlier emails.]

    With 2.6.25-git I lost sound on my Dell XPS M1330 laptop. There seems to
    be two issues at hand here: 1. Analog output is listed, but emits no
    sound (just silence), and 2. Digital out device is missing.

    Issue #1 is bisected in this thread. #2 is still work in progress, and
    will be posted as a separate thread.

    git bisect nailed down the missing audio issue to this commit:
    > 2f32d909f3a85a96074801f6cf20f93324f87646 is first bad commit
    > commit 2f32d909f3a85a96074801f6cf20f93324f87646
    > Author: Matthew Ranostay <mranostay@embeddedalley.com>
    > Date: Thu Jan 10 13:06:26 2008 +0100
    >
    > [ALSA] hda: STAC9228 VT fixes
    >
    > Moved 2 systems PCI_QUIRK values to STAC_DELL_BIOS. Also the second
    > front HP jack is incorrect defined in the BIOS VT's for some laptops,
    > this patch corrects this.
    >
    > Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
    > Signed-off-by: Takashi Iwai <tiwai@suse.de>
    > Signed-off-by: Jaroslav Kysela <perex@perex.cz>
    >
    > :040000 040000 98d7878c8addc0b1595d4b42524cf9cb6cf8759a e32416d5e02694320e8aac369b260d86b2eb2508 M sound

    lspci:
    > 00:1b.0 Audio device [0403]: Intel Corporation 82801H (ICH8 Family) HD Audio Controller [8086:284b] (rev 02)
    > Subsystem: Dell Unknown device [1028:0209]
    > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
    > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    > Latency: 0, Cache Line Size: 64 bytes
    > Interrupt: pin A routed to IRQ 217
    > Region 0: Memory at febfc000 (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: 00000000fee0300c Data: 414a
    > Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00
    > DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
    > ExtTag- RBE- FLReset-
    > DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
    > RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
    > MaxPayload 128 bytes, MaxReadReq 128 bytes
    > DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
    > LnkCap: Port #0, Speed unknown, Width x0, ASPM unknown, Latency L0 <64ns, L1 <1us
    > ClockPM- Suprise- LLActRep- BwNot-
    > LnkCtl: ASPM Disabled; Disabled- Retrain- CommClk-
    > ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
    > LnkSta: Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
    > Capabilities: [100] Virtual Channel <?>
    > Capabilities: [130] Root Complex Link <?>
    > Kernel driver in use: HDA Intel
    > Kernel modules: snd-hda-intel
    > 00: 86 80 4b 28 06 05 10 00 02 00 03 04 10 00 00 00
    > 10: 04 c0 bf 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 28 10 09 02
    > 30: 00 00 00 00 50 00 00 00 00 00 00 00 0a 01 00 00
    > 40: 01 00 00 03 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 81 00 0c 30 e0 fe 00 00 00 00 4a 41 00 00
    > 70: 10 00 91 00 c0 0f 00 00 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 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00
    > d0: 00 00 00 00 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 05 00 00 00 00 00





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