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

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

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:
|Aug 20 10:11:05 mail vmunix: [   17.199711] xen: registering gsi 22 
triggering 0 polarity 1
|Aug 20 10:11:05 mail vmunix: [   17.199725] xen: --> pirq=22 -> irq=22 
(gsi=22)
|Aug 20 10:11:05 mail vmunix: [   17.199747] snd_hda_intel 0000:00:1b.0: 
PCI INT A -> GSI 22 (level, low) -> IRQ 22
|Aug 20 10:11:05 mail vmunix: [   17.199879] snd_hda_intel 0000:00:1b.0: 
setting latency timer to 64
|Aug 20 10:11:05 mail vmunix: [   17.337339] input: HDA Digital PCBeep 
as /devices/pci0000:00/0000:00:1b.0/input/input7

With Linux:
|Aug 19 21:33:04 mail vmunix: [   12.864917] snd_hda_intel 0000:00:1b.0: 
PCI INT A -> GSI 22 (level, low) -> IRQ 22
|Aug 19 21:33:04 mail vmunix: [   12.864958] snd_hda_intel 0000:00:1b.0: 
irq 50 for MSI/MSI-X
|Aug 19 21:33:04 mail vmunix: [   12.864979] snd_hda_intel 0000:00:1b.0: 
setting latency timer to 64
|Aug 19 21:33:04 mail vmunix: [   12.972791] 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.

Regards,

-- Raj
- 
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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