Razer BlackShark V2 headset does not get sound, but is unmuted in alsamixer and pavucontrol
Solution 1:
Ok for those who come in here in search of an answer: for now, in july 2021 there is no answer... The problem come from razer. Only the Kreken headset is supported on linux. So if you have a blackshark V2 like me or others Razer headset you just can't use it. :'(