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Re: [Qemu-devel] Linux KVM, Windows 7 guest choppy sound
From: |
Avi Kivity |
Subject: |
Re: [Qemu-devel] Linux KVM, Windows 7 guest choppy sound |
Date: |
Sun, 09 Sep 2012 17:50:10 +0300 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120828 Thunderbird/15.0 |
On 09/08/2012 01:53 PM, Jan Kiszka wrote:
> On 2012-09-07 18:09, Erik Lotspeich wrote:
>> Hi,
>>
>> I apologize if this isn't the right venue for this message, but this
>> mailing list seems a bit more active than qemu-discuss.
>>
>> Background:
>> I am running OpenSUSE 12.1. I fixed audio issues in VM guests by setting
>> the following in qemu.conf:
>>
>> vnc_allow_host_audio = 1
>>
>> I also set user= and group= to allow qemu-kvm to run as the same user as
>> I am logged in as. This allowed qemu-kvm to send audio to pulseaudio.
>>
>> My issue:
>> I am using the ICH6 virtual audio driver in my VMs. In my Linux VMs, the
>> sound works perfectly without any issues. In my Windows 7 VM, the sound
>> works with the exception of static and choppiness in the audio. Has
>> anyone else seen this or have any ideas for a fix?
>
> Known issue, likely unfixable in QEMU due to hard-coded constraints of
> the driver Windows uses (too small playback buffers).
Would using real-time priority for the guest improve things?
Of course that can be dangerous if the guest decides to spin and has as
many vcpus as you have cores.
--
error compiling committee.c: too many arguments to function