[Bug 206639] New: snd-usb-audio Thinkpad10 gen2 TabletDock analog audio device quirky

[bugzilla-daemon@bugzilla.kernel.org]

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@kernel-bugs.kernel.org
          Reporter: thieson08@me.com
        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.