I am using Ubuntu 18.04 and I have same issue. My echo was working fine from many days and suddenly I have this issue where when I goto bluetooth devices and right click on Echo and click on Audio Source, It says "Now connected to Ubuntu" but does not play sound.
If I give the foolwoing command in terminal: sudo service bluetooth status
I see the issue might be with "a2dp-source profile connect failed for XX:XX:XX:XX:XX:XX: Device or resource busy"
Not sure how to fix it. I have removed and paired the device again and restarted my computer couple of time but of no use.
I am using Ubuntu 18.04 and I have same issue. My echo was working fine from many days and suddenly I have this issue where when I goto bluetooth devices and right click on Echo and click on Audio Source, It says "Now connected to Ubuntu" but does not play sound.
If I give the foolwoing command in terminal: sudo service bluetooth status
I see the issue might be with "a2dp-source profile connect failed for XX:XX:XX:XX:XX:XX: Device or resource busy"
Not sure how to fix it. I have removed and paired the device again and restarted my computer couple of time but of no use.