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** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1709282
Title:
Plantronics Blackwire C520-M - Cannot get freq at ep 0x1, 0x81
Status in linux package in Ubuntu:
Incomplete
Bug description:
Very similar to this:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1622763
== the Problem ==
Listening to sound on a vmware machine, hosted by Ubuntu, the devices
freezes, and cannot listen to sound anymore, i have to connect/disconnect the
device.
After i disconnect i get the logs:
Aug 8 13:52:05 tim-lap-143 kernel: [112278.344893] usb 1-1: 1:1: cannot get
freq at ep 0x81
Aug 8 13:52:05 tim-lap-143 kernel: [112278.347094] usb 1-1: 2:1: cannot get
freq at ep 0x1
Aug 8 13:52:05 tim-lap-143 kernel: [112278.358786] usb 1-1: Warning!
Unlikely big volume range (=8192), cval->res is probably wrong.
Aug 8 13:52:05 tim-lap-143 kernel: [112278.358787] usb 1-1: [11] FU
[Sidetone Playback Volume] ch = 1, val = 0/8192/1
Aug 8 13:52:05 tim-lap-143 kernel: [112278.641980] input: Plantronics
Plantronics C520-M as
/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.3/0003:047F:C036.000F/input/input32
Aug 8 13:52:05 tim-lap-143 kernel: [112278.702298] plantronics
0003:047F:C036.000F: input,hiddev0,hidraw2: USB HID v1.11 Device [Plantronics
Plantronics C520-M] on usb-0000:00:14.0-1/input3
Aug 8 13:52:05 tim-lap-143 kernel: [112278.747708] usb 1-1: 2:1: cannot get
freq at ep 0x1
Aug 8 13:52:16 tim-lap-143 kernel: [112289.406154] usb 1-1: reset full-speed
USB device number 19 using xhci_hcd
Aug 8 13:52:16 tim-lap-143 kernel: [112289.906146] usb 1-1: reset full-speed
USB device number 19 using xhci_hcd
= The solution ==
It is simple, add this USB ID to the
sound/usb/quirks.c:snd_usb_get_sample_rate_quirk function.
version signature: Ubuntu 4.10.0-28.32-generic 4.10.17
Thanks!
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