I've made some progress with this issue, but I'm still not getting sound. By way of background, I'm doing my development and testing on a MacBook Air, running macOS High Sierra (10.13.6). As I recently posted: > I've successfully built a VirtualBox instance, based on Ubuntu, for use under Vagrant. Now I'd like to set up ALSA to use the host's audio output system. Making things more complicated, the host could be running Linux, macOS, Windows, or ??? I reworked my Vagrantfile to incorporate some ideas from Christoph Neumann's vagrant-audio Vagrantfile (in https://github.com/christoph-neumann/vagrant-audio). For details, see this gist: https://gist.github.com/RichMorin/dc9138962c19c205697bea23cce5134c After building the VM, I can SSH into it via `vagrant ssh`. If I then run `speaker-test`, the program prints out some promising text and then hangs: vagrant@vagrant:~$ speaker-test speaker-test 1.1.8 Playback device is default Stream parameters are 48000Hz, S16_LE, 1 channels Using 16 octaves of pink noise Rate set to 48000Hz (requested 48000Hz) Buffer size range from 69 to 17832 Period size range from 34 to 8917 Using max buffer size 17832 Periods = 4 was set period_size = 4458 was set buffer_size = 17832 0 - Front Left And, if I do `aplay -L`, I get: vagrant@vagrant:~$ aplay -L null Discard all samples (playback) or generate zero samples (capture) default sysdefault:CARD=Intel HDA Intel, STAC9221 A1 Analog Default Audio Device front:CARD=Intel,DEV=0 HDA Intel, STAC9221 A1 Analog Front speakers ... Helpful clues, comments, and suggestions are solicited. -r _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
