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Re: [Xen-users] Cannot get sound in a Windows DomU

To: Bob Nolty <xen@xxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] Cannot get sound in a Windows DomU
From: Liwei <xieliwei@xxxxxxxxx>
Date: Tue, 31 May 2011 03:01:03 +0800
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
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> Date: Sun, 29 May 2011 23:26:55 -0700
> From: Bob Nolty <xen@xxxxxxxxxxxxxxx>
> Subject: [Xen-users] Cannot get sound in a Windows DomU
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Message-ID: <201105300626.p4U6QtbJ000843@xxxxxxxxxxxx>
> Hi all --
> I'm a newbie to xen, but have spent about three days reading manuals
> and googling.  I have Fedora 13 as my Dom0, installed Michael Young's
> 2.6.32-xendom0-fc13 kernel package, and created a Vista Business
> 64-bit DomU.  I've been unable to find a Windows driver for AC97 or
> ES1370 audio card that works.  Several I tried would not install; now
> I have an AC'97 driver from Realtek for 64-bit Vista that installs,
> but in Windows Device Manager it says, "This device cannot start".  I
> have looked through my xend.log and qemu-dm-*.log files and don't see
> anything to blame.  (I was getting error messages in the qemu-dm log
> until I loaded OSS emulation into alsa with # modprobe snd-pcm-oss,
> but none now.)  The xend-debug.log has complaints only about the scsi
> bus.
> Can anyone see what's wrong, or let me know what you did to get sound
> working in Vista 64?  Where did you get your driver?  Thanks in advance!
> Bob
> ------------------------------------------------------------------------
> Here are my log files:


I'm looking into this too (since apparently trying to use my
microphone with passthroughed HD audio interface screws things up).
>From what I know, there are no qemu compatible 64-bit AC97 drivers out
there (even the Realtek one which like you said refuses to start).
Likewise for the other audio emulation the xen-bundled qemu provides.

However, in the current qemu release, there is support for Intel HDA
emulation, which 64-bit Windows supports. Unfortunately, the
xen-bundled qemu is heavily patched; so it may take some effort to
transplant the HDA support over, if somebody hasn't tried it yet.

Alternatively, you may use a 32-bit version of Windows, if circumstances allow.

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