https://bugzilla.kernel.org/show_bug.cgi?id=206639 Bug ID: 206639 Summary: snd-usb-audio Thinkpad10 gen2 TabletDock analog audio device quirky Product: Drivers Version: 2.5 Kernel Version: 5.4.20 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: USB Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx Reporter: thieson08@xxxxxx Regression: No Created attachment 287555 --> https://bugzilla.kernel.org/attachment.cgi?id=287555&action=edit dmesg Inside the Thinkpad 10 gen2 Tabletdock there is an analog audio device which is connected via usb. The ID of this device is 17ef:3053. When first listening to this device, the audio was noisy and the audio quality was not that well. I am using fedora 31 stable. Inside the dmesg I found the following line: [ 31.659316] usb 1-4.4: 2:1: cannot get freq at ep 0x1 I have found the following suggestion online to this error: https://www.raspberrypi.org/forums/viewtopic.php?p=1442317#p1442317 I have added the following command to /etc/default/grub at GRUB_CMDLINE_LINUX and created a new grub.cfg: snd-usb-audio.quirk_alias=17ef3053:047f02f7 After reboot, the audio quality was fine. Nevertheless I have noticed that the volume control is still not fine. The volume is really quiet until about % of the scale and over this, the volume jumps up. I am attaching the dmesg and hwinfo output as txt. -- You are receiving this mail because: You are watching the assignee of the bug.
