View source for pulseaudio device missing


== problem ==
 USB sound device unusable and not found by pulseaudio.


 $ pactl list | grep -A 1 "Card   #"                                                                                                                                                                        ~
 Card #0
        Name: alsa_card.pci-0000_01_00.1
 --
 Card #1
        Name: alsa_card.pci-0000_00_1b.0


== solution ==

I didn't find a CLI way to restart pulse gracefully.  I didn't find an option to do so in pactl or pacmd.  My pulse doesn't seem to daemonized either.  If you kill the process, it should be restarted (by something) automatically. 

restart pulseaudio
 
 $ '''sudo killall pulseaudio'''


re-list cards

 $ '''pactl list | grep -A 1 "Card "'''                                                                                                                                                                        
 Card #0
        Name: alsa_card.pci-0000_01_00.1 
 --
 Card #1
        Name: alsa_card.usb-Plantronics_CS50_CS60-USB_Headset-00-Headset   <<<< usb headset found!
 --
 Card #2
        Name: alsa_card.pci-0000_00_1b.0