Black's hdmi connected to an hdmi-2-av external powered device connected to a power amplifier connected to speakers.
In other words: Black -> hdmi-2-av -> amplifier -> speakers Audio is tested with 'speaker-test'. Speaker-test is started soon after reboot. "Right channel.....left channel.....right channel....left channel...." The test tone is heard as expected until exactly 10 minutes after reboot. The only external sign of a problem is no more sound. There are no log messages in dmesg or /var/log/*. speaker-test continues to run, sending text to stdout. Any hypotheses? How can I debug? Thanks. John Other info: The faulty black runs this linux: root@beaglebone:~# uname -a Linux beaglebone 4.4.30-ti-r64 #1 SMP Fri Nov 4 21:23:33 UTC 2016 armv7l GNU/Linux root@beaglebone:~# cat /etc/debian_version 8.6 I have a second black and it does not have audio problem. It was purchased several months earlier than the above. It is running factory provided angstrom. I don't have it handy to obtain the 'uname -a' output. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/5a14a8d0-919d-4801-8940-2fb9c4a29b70%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
