Re: [Xen-users] [RESEND] Dom0 sound problem with Hypervisor 4.1.3~rc1+hg-20120614.a9c0a89c08f2-5

["Raj Mathur (ààà ààààà)" <raju@xxxxxxxxxxxxxxx>]

On Wednesday 22 Aug 2012, Ian Campbell wrote:
> Have you tried without the -rt patches?

Tried with custom kernel, Debian default config with INTEL_IOMMU 
enabled.

No difference.  Sound still works when kernel booted standalone, doesn't 
work with kernel booted as Xen Dom0.

Anyplace else I should look?

Regards,

-- Raj

> On Wed, 2012-08-22 at 03:24 +0100, Raj Mathur (ààà ààààà) wrote:
> > Would appreciate if someone can throw some light on this:
> > 
> > Happily running a Xen system, most problems sorted out, except
> > sound. The onboard sounds works fine when Linux is booted, but is
> > completely silent when the same kernel is booted as Dom0.  ALSA
> > devices and modules are identical in both cases.  The only
> > difference I can find in the dmesg is:
> > 
> > With Xen:
> > |xen: registering gsi 22 triggering 0 polarity 1
> > |xen: --> pirq=22 -> irq=22 (gsi=22)
> > |snd_hda_intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) ->
> > |IRQ 22 snd_hda_intel 0000:00:1b.0: setting latency timer to 64
> > |input: HDA Digital PCBeep as
> > 
> > /devices/pci0000:00/0000:00:1b.0/input/input7
> > 
> > With Linux:
> > |snd_hda_intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) ->
> > |IRQ 22 snd_hda_intel 0000:00:1b.0: irq 50 for MSI/MSI-X
> > |snd_hda_intel 0000:00:1b.0: setting latency timer to 64
> > |input: HDA Digital PCBeep as
> > 
> > /devices/pci0000:00/0000:00:1b.0/input/input9
> > 
> > lspci:
> > |00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series
> > |Chipset
> > 
> > Family High Definition Audio Controller (rev 04)
> > 
> > |       Subsystem: Intel Corporation Device 2040
> > |       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 304
> > |       Region 0: Memory at f7f30000 (64-bit, non-prefetchable)
> > 
> > [size=16K]
> > 
> > |       Capabilities: <access denied>
> > |       Kernel driver in use: snd_hda_intel
> > 
> > Running on Debian Testing (Wheezy).
> > 
> > xen-hypervisor-4.1-i386 4.1.3~rc1+hg-20120614.a9c0a89c08f2-5
> > Xen Hypervisor on i386
> > 
> > linux-image-3.2.233-rt37 3.2.233-rt37-10.00.Custom
> > Linux kernel binary image for version 3.2.233-rt37
> > 
> > The kernel is custom (to fix i915 GPU hung problem), but I've tried
> > the same with the stock kernels with no difference.
> > 
> > Any help/suggestions appreciated.  Can provide more information if
> > required.

-- 
Raj Mathur                          || raju@xxxxxxxxxxxxx   || GPG:
http://otheronepercent.blogspot.com || http://kandalaya.org || CC68
It is the mind that moves           || http://schizoid.in   || D17F

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