sudo usermod -a -G $USER audio On Saturday, September 19, 2015 at 6:35:55 PM UTC-7, [email protected] wrote: > > Hi all, > > Unfortunately I cannot get the sound to work on my BeagleBoard (rev C5) > with Ubuntu 14.04.3. I try to use the internal stereo out jack. > > Playing any file fails with the following error: > > abarth@arm:~$ aplay /usr/share/sounds/alsa/Front_Left.wav > ALSA lib confmisc.c:768:(parse_card) cannot find card '0' > ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_card_driver > returned error: No such file or directory > ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings > ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_concat > returned error: No such file or directory > ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name > ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_refer > returned error: No such file or directory > ALSA lib conf.c:4727:(snd_config_expand) Evaluate error: No such file or > directory > ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM default > aplay: main:722: audio open error: No such file or directory > > > The sound card does not seem to be recognized: > abarth@arm:~$ aplay -l > aplay: device_list:268: no soundcards found... > > However, in /proc/asound, I see a card0: > > abarth@arm:~$ ls /proc/asound > card0 cards devices modules omap3beagle oss pcm seq timers version > > Sound kernel modules seem to be loaded: > > abarth@arm:~$ lsmod | grep snd > snd_soc_twl4030 42147 1 > snd_soc_omap_mcbsp 25505 2 > snd_soc_omap 3125 1 snd_soc_omap_mcbsp > snd_soc_omap_twl4030 7256 0 > snd_seq_midi 6165 0 > snd_seq_midi_event 7274 1 snd_seq_midi > snd_soc_core 191982 4 > snd_soc_omap_twl4030,snd_soc_omap,snd_soc_omap_mcbsp,snd_soc_twl4030 > snd_compress 13928 1 snd_soc_core > snd_pcm_dmaengine 5682 2 snd_soc_core,snd_soc_omap > snd_pcm_oss 41006 0 > snd_rawmidi 24220 1 snd_seq_midi > snd_mixer_oss 15253 1 snd_pcm_oss > snd_pcm 97788 6 > snd_pcm_oss,snd_soc_core,snd_soc_omap,snd_soc_omap_mcbsp,snd_pcm_dmaengine,snd_soc_twl4030 > snd_seq 67850 2 snd_seq_midi_event,snd_seq_midi > snd_seq_device 5368 3 snd_seq,snd_rawmidi,snd_seq_midi > snd_timer 22978 2 snd_pcm,snd_seq > snd 72286 9 > snd_pcm_oss,snd_soc_core,snd_timer,snd_pcm,snd_seq,snd_rawmidi,snd_seq_device,snd_compress,snd_mixer_oss > soundcore 8445 1 snd > > > > I have the following alsa packages installed: > > abarth@arm:~$ dpkg -l | grep alsa > ii alsa-base > 1.0.25+dfsg-0ubuntu4 all ALSA driver > configuration files > ii alsa-utils > 1.0.27.2-1ubuntu2 armhf Utilities for > configuring and using ALSA > > Some more info on my system: > > abarth@arm:~$ uname -a > Linux arm 4.1.5-armv7-x2 #1 SMP Tue Aug 11 21:04:06 UTC 2015 armv7l armv7l > armv7l GNU/Linux > abarth@arm:~$ cat /etc/issue > Ubuntu 14.04.3 LTS \n \l > > rcn-ee.net console Ubuntu Image 2015-08-17 > > Any help or directions would be greatly appreciated! > > Cheers, > Alex > > >
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