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

  • To: xen-users@xxxxxxxxxxxxx
  • From: "Raj Mathur (ààà ààààà)" <raju@xxxxxxxxxxxxxxx>
  • Date: Wed, 22 Aug 2012 07:54:46 +0530
  • Delivery-date: Wed, 22 Aug 2012 02:26:37 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>

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 

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 

|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) 
|       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 

-- 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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