2010-01-04, 13:21
Hi all,
I finally succeed to get the sound working under xbmc, with all users and with alsa under Fedora.
I would like to share my solution, and maybe it will help other users.
My goal is simple : Use passthrough under XBMC and Fedora. So i have to disable pulseaudio and use alsa instead (pulseaudio doesn't support passthrough)
Firstable, I disabled pulse during compilation
But, the problems stay multiple :
1/ The sound works with root but i had no sound at all under non-root users.
- Check the rights on /dev/snd/*
- When i change manually the rights to the non-user, it works. But when i reboot, the good rights are gone. To change the good rights permenantly, i edit the file /etc/security/console.perms.d/50-default.perms
And i added not-root users to the audio group
2/ After these changes, i've sound in the interface of xbmc with all users, but non-root users have no sound during videos
In xbmc.log, i've this error :
As everything works fine under root i check who use the sound device :
Under root :
Under notroot :
So, to disable pulseaudio :
- I removed alsa-plugins-pulseaudio
- I removed the /etc/asound.conf file
- I disabled all modules in /etc/pulse/system.pa & default.pa
And finally, everything is fine.
I hope this help.
(As you can read, english isn't my mother tongue, so be free to correct me if some of my sentences are incorrect or incomprehensible
)
I finally succeed to get the sound working under xbmc, with all users and with alsa under Fedora.
I would like to share my solution, and maybe it will help other users.
My goal is simple : Use passthrough under XBMC and Fedora. So i have to disable pulseaudio and use alsa instead (pulseaudio doesn't support passthrough)
Firstable, I disabled pulse during compilation
Code:
./configure --disable-vdpau --enable-goom --disable-pulseBut, the problems stay multiple :
1/ The sound works with root but i had no sound at all under non-root users.
- Check the rights on /dev/snd/*
Code:
root@home>ls -l /dev/snd/*
crw-rw----+ 1 root root 116, 0 janv. 4 00:32 /dev/snd/controlC0
crw-rw----+ 1 root root 116, 8 janv. 4 00:32 /dev/snd/midiC0D0
crw-rw----+ 1 root root 116, 24 janv. 4 11:06 /dev/snd/pcmC0D0c
crw-rw----+ 1 root root 116, 16 janv. 4 11:06 /dev/snd/pcmC0D0p
crw-rw----+ 1 root root 116, 17 janv. 4 00:32 /dev/snd/pcmC0D1p
crw-rw----+ 1 root root 116, 26 janv. 4 00:32 /dev/snd/pcmC0D2c
crw-rw----+ 1 root root 116, 18 janv. 4 11:25 /dev/snd/pcmC0D2p
crw-rw----+ 1 root root 116, 33 janv. 4 00:32 /dev/snd/timer- When i change manually the rights to the non-user, it works. But when i reboot, the good rights are gone. To change the good rights permenantly, i edit the file /etc/security/console.perms.d/50-default.perms
Code:
<snd>=/dev/snd/*
...
<console> 0660 <snd> 0660 root.audioAnd i added not-root users to the audio group
Code:
gpasswd -a notroot audio2/ After these changes, i've sound in the interface of xbmc with all users, but non-root users have no sound during videos
In xbmc.log, i've this error :
Code:
ERROR: Initialize - pcm_open_lconf, alsa error: -16
xbmc pcm_dmix.c:1010:(snd_pcm_dmix_open) unable to open slaveAs everything works fine under root i check who use the sound device :
Under root :
Code:
root@home>fuser -v /dev/snd/*
USER PID ACCESS COMMAND
/dev/snd/pcmC0D2p: root 26235 F...m xbmc.binUnder notroot :
Code:
nonroot@home>fuser -v /dev/snd/*
USER PID ACCESS COMMAND
/dev/snd/pcmC0D2p: notroot 27925 F...m [color=red]pulseaudio[/color]So, to disable pulseaudio :
- I removed alsa-plugins-pulseaudio
Code:
yum remove alsa-plugins-pulseaudio- I removed the /etc/asound.conf file
Code:
mv /etc/asound.conf /etc/asound.conf.old- I disabled all modules in /etc/pulse/system.pa & default.pa
And finally, everything is fine.
I hope this help.
(As you can read, english isn't my mother tongue, so be free to correct me if some of my sentences are incorrect or incomprehensible
)