On Tue, Apr 16, 2013 at 10:24:01AM -0700, Mike Wright wrote:
> Hi all,
> 
> I need help debugging this situation.
> 
> Running xen-4.2.1 with kernel 3.8.5-201.fc18.x86_64.
> 
> I have successfully passed an on-board audio adapter to a VM running
> f14 but it does not work.
> 
> When f14 runs on bare metal it has full audio capability.
> 
> "lspci" on VM-f14 correctly shows:
>

1) Please compare "lspci -vvv" between baremetal and the VM

2) Is this a PV or HVM guest? 

3) Any errors in the Xen dmesg (xm dmesg, or xl dmesg)

4) Did you try using pci-alignment for the audio card? 


-- Pasi

 
> 00:00.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA) (rev 40)
> 
> "lsmod | grep snd" shows:
> 
> snd_hda_codec_realtek   322852  1
> snd_hda_intel          23945  2
> snd_hda_codec          83791  2 snd_hda_codec_realtek,snd_hda_intel
> snd_hwdep               6288  1 snd_hda_codec
> snd_seq                52985  0
> snd_seq_device          5969  1 snd_seq
> snd_pcm                79886  2 snd_hda_intel,snd_hda_codec
> snd_timer              19363  2 snd_seq,snd_pcm
> snd                    63685  12 
> snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer
> soundcore               6329  1 snd
> snd_page_alloc          7359  2 snd_hda_intel,snd_pcm
> 
> All the pieces seem to be there.
> 
> However, "System->Preferences->Sound->Hardware" is empty and
> "System->Preferences->Sound->Output" shows only "Dummy Output,
> Stereo".
> 
> Anybody know how to debug this?
> 
> Right now I have to use Domain0 for multimedia, which seems to
> pervert the whole concept of keeping Domain0 away from general
> users.
> 
> Please, Thanks, All of the above :)
> Mike Wright
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