Le 04/09/2014 11:32, Tanu Kaskinen a ?crit : > On Tue, 2014-09-02 at 15:17 +0200, DIEHCO R&D wrote: >> Le 02/09/2014 12:35, Tanu Kaskinen a ?crit : >>> On Tue, 2014-09-02 at 11:24 +0200, DIEHCO R&D wrote: >>>> Le 02/09/2014 10:57, Tanu Kaskinen a ?crit : >>>>>>>> (...) >>>>>>>> I: [pulseaudio] module-udev-detect.c: Found 0 cards. >>>>>>> The debug logs before this line should tell why there weren't any sound >>>>>>> cards found. >>>>>> module-udev-detect.so found. I don't see if there is problem in log below. >>>>> Ok, so according to udev there are no sound devices. What does "ls >>>>> -l /dev/snd" print? >>>>> >>>> root at eukrea-cpuimx25:~# ls -l /dev/snd >>>> crw-rw---- 1 root root 116, 0 Sep 2 09:13 controlC0 >>>> crw-rw---- 1 root root 116, 24 Sep 2 09:13 pcmC0D0c >>>> crw-rw---- 1 root root 116, 16 Sep 2 09:13 pcmC0D0p >>>> crw-rw---- 1 root root 116, 1 Sep 2 09:13 seq >>>> crw-rw---- 1 root root 116, 33 Sep 2 09:13 timer >>> Hmm, pulseaudio probably can't use these devices, because they are >>> accessible only to root and pulseaudio runs under the "pulse" user, so >>> modifying the access rights is required, but I think the log indicates >>> that pulseaudio doesn't even try, because according to udev there are no >>> sound cards. >>> >>> What does "udevadm info /dev/snd/controlC0" print? >> root at eukrea-cpuimx25:~# udevadm info /dev/snd/controlC0 >> missing option >> root at eukrea-cpuimx25:~# udevadm info --query=all --name=/dev/snd/controlC0 >> P: /devices/platform/soc-audio/sound/card0/controlC0 >> N: snd/controlC0 >> E: DEVNAME=/dev/snd/controlC0 >> E: DEVPATH=/devices/platform/soc-audio/sound/card0/controlC0 >> E: MAJOR=116 >> E: MINOR=0 >> E: SUBSYSTEM=sound > Looks good to me. Can you also paste the output of > > udevadm info --query=all /sys/devices/platform/soc-audio/sound/card0 > > If that also looks good, then I'm out of ideas. root at eukrea-cpuimx25:~# udevadm info --query=all --path=/sys/devices/platform/soc-audio/sound/card0 P: /devices/platform/soc-audio/sound/card0 E: DEVPATH=/devices/platform/soc-audio/sound/card0 E: SUBSYSTEM=sound I don't know it is good... Maybe I could use module-alsa-source or module-alsa-source ? I did some try without success because of wrong argument. root at eukrea-cpuimx25:~# aplay -l **** List of PLAYBACK Hardware Devices **** card 0: cpuimxaudio [cpuimx-audio], device 0: TLV320AIC23 tlv320aic23-hifi-0 [] Subdevices: 1/1 Subdevice #0: subdevice #0