Icon on the KDE taskbar then select it, or if I use the keys built into my keyboard it adjusts the line out. If I don’t have teamspeak open, theres no issue.
I can have audio from a game, firefox, etc going, adjust the line out, and it adjusts the level correctly. Except spotify, it mutes. But it only mutes if teamspeak is open. Otherwise, it levels fine with everything else.
So the conflict has to be somewhere between spotify and teamspeak imo but i have no idea how to resolve that