Bug#631963: linux-image-3.0.0-rc4-686-pae: no sound out the rear plugs

[Ben Hutchings <ben@decadent.org.uk>]

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On Tue, 2011-06-28 at 19:24 +0200, Toni Mueller wrote:
> Package: linux-2.6
> Version: 3.0.0~rc4-1~experimental.1
> Severity: normal
> Tags: upstream
> 
> 
> Hi,
> 
> when using this kernel, I hear no sound using the speakers, only using
> the headphones, plugged in at the front.
> 
> With 2.6.38 (dmesg attached), the speakers get fed, too.
[...]
> 00:14.2 Audio device [0403]: ATI Technologies Inc SBx00 Azalia (Intel HDA) [1002:4383]
>         Subsystem: ASUSTeK Computer Inc. Device [1043:841b]
>         Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
>         Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>         Latency: 64, Cache Line Size: 64 bytes
>         Interrupt: pin A routed to IRQ 16
>         Region 0: Memory at fe8f0000 (64-bit, non-prefetchable) [size=16K]
>         Capabilities: <access denied>
>         Kernel driver in use: HDA Intel
[...]

Takashi, this looks like a regression in control parsing in the realtek
codec.  The kernel logs are at <http://bugs.debian.org/631963> but I
don't think they'll tell you much.

Toni, can you provide the output of 'amixer -c 0 controls' under 2.6.38
and 3.0-rc4?

Ben.

-- 
Ben Hutchings
In a hierarchy, every employee tends to rise to his level of incompetence.

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