On Sun, 25 Feb 2018 02:53:15 +0100, Marius Cirsta wrote: > > I have a problem that was previously reported here: > > https://www.spinics.net/lists/linux-usb/msg156999.html > > It seems that with the 4.10-rc1 kernel a regression was introduced > that makes my Logitech C310 microphone record a distorted ( chipmunk ) > sound. With the 4.9.1 kernel it works perfectly. > > Immediately after I plug it into the USB port all is fine but after a > few minutes this problem occurs. > > Also if add this the kernel cmd line : usbcore.autosuspend=-1 it > also works fine. > > One other thing that I've noticed is that if I make the sampling rate > 22K it again works fine so only the 44K and 48K sampling rates have > this problem but unfortunately those are the default that Chromium for > instance uses ( it gets them from pulseaudio ) > > > Let me know if you need any more details or testing.
Well it's an old topic, so I don't remember, but did you try to revert the commit fd1a5059610c as already suggested? If it doesn't give any difference, it's not about USB-audio driver side, rather likely some change in USB core. Takashi
