Re: [Qemu-devel] [PATCH v2 00/52] Audio 5.1 patches

[Programmingkid <programmingkidx@gmail.com>]

> On Jan 1, 2019, at 7:27 AM, Zoltán Kővágó <dirty.ice.hu@gmail.com> wrote:
> 
> On 2019-01-01 05:24, Programmingkid wrote:
>>> On 2018-12-29 01:49, Programmingkid wrote:
> [snip]
>>>> 
>>>> I tried ac97 with a Windows 2000 guest in qemu-system-i386 - same demonic sound.
>>>> With the above configuration but with an es1370 sound card I heard the same sound. I kept seeing "es1370: warning: non looping mode" being printed in the terminal. This problem might need its own patch.
>>>> Using the sb16 sound card I heard the same unsettling sound.
>>>> 
>>>> I could not test the HDA driver due to problems with my Windows 7 VM.  
>>>> 
>>> 
>>> 
>>> I have a feeling that bf870a0cf5e2c2dd7438e65473b4fca1fb0ca5d1
>>> (coreaudio: port to the new audio backend api) is the commit which
>>> breaks it, but without a mac I don't know how could I debug it. The way
>>> it initializes coreaudio changed a bit, that can cause problems.
>>> Could you please test whether this commit is the culprit or not?
>>> 
>>> Regards,
>>> Zoltan
>> 
>> 
>> Hi how do you want me to test your theory? Revert the patch? If I did I don't think QEMU would still compile. 
> 
> No, don't revert it, that would generate too many conflicts. Just
> 
> git checkout bf870a0c

This causes the very disturbing sound to play.

> 
> and
> 
> git checkout bf870a0c~

This also causes the very disturbing sound to play.

> 
> should give you two versions that you can compare.
> 
> Regards,
> Zoltan

Thank you.