On Thu, 25 Nov 2021 12:04:41 +0100, Hans de Goede wrote: > > Hi, > > I've a set of Logitech Z10 USB speakers, which act as a USB soundcard. > > They have this weird glitch where after turning off my PC (and their > power-supply as well) and then turning things back on, they are silent > until I change the PCM volume control for the speakers inside > alsa-mixer. > > It seems like they need some "set-volume" command to be send over the > USB bus to unmute them when initially powered-up / turned on. > > Is their some existing usb-audio quirk which I can try to work around this? No such quirk is present for now. Was it tested with 5.16-rc? There was a change in USB-audio driver initialization (commit b96681bd5827) and it might have some effect in your case. Also, it's interesting to know whether it happens also once after suspend-resume, too. thanks, Takashi
