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Sound problem with usb headset on KDE on Fedora 29


New Member
Hi, and excuse the english.

I am using Fedora 29, kernel 4.20.6-200.fc29.x86_64 with Plasma KDE 5.54
CPU : Core i5 6500
MB : H170M D3H

I bought a usb headset Vykon me888, on the other system :D ... it works perfectly, so it's not a hardware problem.
On KDE, if the volume in the mixer is below 100% there is no sound. Above 100% there is sound but it's very loud. And there are cuts sometimes on the sound.

To get an audible sound I have to decrease the sound from the application playing the sound, and even with that it's like I don't have the ability to decrease or increase the sound gradually, the sound disappears or become loud rapidly.
Here are some information :
lsusb -v : see attachment

pacmd ls : see attachment

[ 40.873372] usb 1-1: 2:1: cannot get freq at ep 0x82
[ 41.202041] retire_capture_urb: 8 callbacks suppressed
[11383.236299] usb 1-1: USB disconnect, device number 2
[11395.052621] usb 1-1: new full-speed USB device number 5 using xhci_hcd
[11395.183228] usb 1-1: New USB device found, idVendor=1908, idProduct=2070, bcdDevice= 1.00
[11395.183234] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[11395.183239] usb 1-1: Product: USB PnP Sound Device
[11395.183243] usb 1-1: Manufacturer: Generic
[11395.183246] usb 1-1: SerialNumber: 〲㌱㈱
[11395.187821] usb 1-1: 1:1: cannot get freq at ep 0x2
[11395.189732] usb 1-1: 2:1: cannot get freq at ep 0x82
[11395.202300] input: Generic USB PnP Sound Device as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.3/0003:1908:2070.0005/input/input20
[11395.254256] hid-generic 0003:1908:2070.0005: input,hidraw0: USB HID v2.01 Device [Generic USB PnP Sound Device] on usb-0000:00:14.0-1/input3

[11395.334957] usb 1-1: 2:1: cannot get freq at ep 0x82

alsa-info.sh : see attachment



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