Re: [Qemu-devel] [PATCH] audio: don't use alsa by default

[Gerd Hoffmann]

On Tue, Feb 19, 2019 at 11:39:49AM +0100, David Hildenbrand wrote:
> On 19.02.19 11:15, Gerd Hoffmann wrote:
> > ardware is present the driver initializes
> > successfully and throws errors later on, i.e. effectively the
> > automatic probing doesn't work.  So the driver should not be
> > used by default (until that is fixed).  Drop the can_be_default
> > flag.
> > 
> > Explicitly picking the alsa driver (using QEMU_AUDIO_DRV=alsa
> > environment variable) will continue to work.
> 
> Just pointing out that with this patch, audio initialization still
> hinders me from starting guests on my Fedora 29 when running under root
> (I don't think this patch was also intended to fix that, just pointing
> out for me the problem still exists).
> 
> 
> ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect:
> Connection refused
> 
> sdl: SDL_OpenAudio failed
> sdl: Reason: ALSA: Couldn't open audio device: Connection refused
> ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect:
> Connection refused
> 
> sdl: SDL_OpenAudio failed
> sdl: Reason: ALSA: Couldn't open audio device: Connection refused
> audio: Failed to create voice `pcspk'
> qemu-system-x86_64: Initialization of device isa-pcspk failed:
> Initializing audio voice failed

So SDL has the same problem (possibly only when using alsa).

Hmm.  Dropping can_be_default here will too break sound on BSD ...