GlitchFreeAudio, features for F10

[Tom London]

On Thu, Sep 18, 2008 at 5:20 AM, Antonio Olivares
<olivares14031 at yahoo.com> wrote:
> --- On Thu, 9/18/08, Dennis J. <dennisml at conversis.de> wrote:
>
>> From: Dennis J. <dennisml at conversis.de>
>> Subject: Re: GlitchFreeAudio, features for F10
>> To: olivares14031 at yahoo.com, "For testers of Fedora Core development releases" <fedora-test-list at redhat.com>
>> Date: Thursday, September 18, 2008, 4:58 AM
>> Have you tested sound without PulseAudio going directly
>> through alsa? PA
>> does seem to be really picky with every update when it
>> comes to audio
>> hardware while alsa always keeps working fine for me.
>>
>> Regards,
>>    Dennis
>>
>
> I have tried oss, but does not work.
>
> I leave it as default, I get
>
> ==========================================================================
> Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
> AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)
> Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
> ==========================================================================
> [AO_ALSA] alsa-lib: confmisc.c:768:(parse_card) cannot find card '0'
> [AO_ALSA] alsa-lib: conf.c:3513:(_snd_config_evaluate) function snd_func_card_driver returned error: Permission denied
> [AO_ALSA] alsa-lib: confmisc.c:392:(snd_func_concat) error evaluating strings
> [AO_ALSA] alsa-lib: conf.c:3513:(_snd_config_evaluate) function snd_func_concatreturned error: Permission denied
> [AO_ALSA] alsa-lib: confmisc.c:1251:(snd_func_refer) error evaluating name
> [AO_ALSA] alsa-lib: conf.c:3513:(_snd_config_evaluate) function snd_func_refer returned error: Permission denied
> [AO_ALSA] alsa-lib: conf.c:3985:(snd_config_expand) Evaluate error: Permission denied
> [AO_ALSA] alsa-lib: pcm.c:2202:(snd_pcm_open_noupdate) Unknown PCM default
> [AO_ALSA] Playback open error: Permission denied
> Could not open/initialize audio device -> no sound.
> Audio: no sound
> Video: no video
>
> I try oss and I get:
>
> ==========================================================================
> Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
> AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)
> Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
> ==========================================================================
> [AO OSS] audio_setup: Can't open audio device /dev/dsp: Permission denied
> Could not open/initialize audio device -> no sound.
> Audio: no sound
> Video: no video
>
>
>
> I have checked the wiki on PulseAudio to no avail.  I had enjoyed sound for a good while, but now after two or three rawhide reports ago, it went down :(
>
> Thanks,
>
> Antonio
>

Could 'pulsed' or some other sound daemon be running in the background
preventing standard alsa/oss from accessing /dev/dsp or /dev/snd/* ?

Try running 'lsof | grep /dev/snd' and see if anything shows up.
(replace /dev/snd with any other appropriate sound/video device
files.....)

On my system that has pulseaudio running very happily:

[root at tlondon ~]# lsof | grep /dev/snd
lsof: WARNING: can't stat() fuse.gvfs-fuse-daemon file system /home/tbl/.gvfs
      Output information may be incomplete.
pulseaudi 3131       tbl  mem       CHR      116,5
6499 /dev/snd/pcmC0D0p
pulseaudi 3131       tbl   16u      CHR      116,8         0t0
6576 /dev/snd/controlC0
pulseaudi 3131       tbl   22u      CHR      116,8         0t0
6576 /dev/snd/controlC0
pulseaudi 3131       tbl   31u      CHR      116,5         0t0
6499 /dev/snd/pcmC0D0p
mixer_app 3158       tbl   22r      CHR      116,8         0t0
6576 /dev/snd/controlC0
[root at tlondon ~]#

tom
-- 
Tom London