> However, neither the keyboard or mouse were functioning.
> I unplugged the wireless dongles for both of them and
> plugged them back in, and now the mouse works, but the
> keyboard still doesn't work.
I've been seeing stuff like this in the syslog from recent kernels:
Sep 30 08:59:34 dorotea kernel: usb 1-3: new full-speed USB device
number 3 using xhci_hcd
Sep 30 08:59:34 dorotea kernel: usb 1-3: New USB device found,
idVendor=046d, idProduct=c52b, bcdDevice=12.09
Sep 30 08:59:34 dorotea kernel: usb 1-3: New USB device strings:
Mfr=1, Product=2, SerialNumber=0
Sep 30 08:59:34 dorotea kernel: usb 1-3: Product: USB Receiver
Sep 30 08:59:34 dorotea kernel: usb 1-3: Manufacturer: Logitech
Sep 30 08:59:34 dorotea kernel: input: Logitech USB Receiver as
/devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/0003:046D:C52B.0001/input/input18
Sep 30 08:59:34 dorotea kernel: hid-generic 0003:046D:C52B.0001:
input,hidraw0: USB HID v1.11 Keyboard [Logitech USB Receiver] on
usb-0000:00:14.0-3/input0
Sep 30 08:59:34 dorotea kernel: input: Logitech USB Receiver Mouse as
/devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.1/0003:046D:C52B.0002/input/input19
Sep 30 08:59:34 dorotea kernel: input: Logitech USB Receiver Consumer
Control as
/devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.1/0003:046D:C52B.0002/input/input20
Sep 30 08:59:34 dorotea kernel: input: Logitech USB Receiver System
Control as
/devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.1/0003:046D:C52B.0002/input/input21
Sep 30 08:59:34 dorotea kernel: hid-generic 0003:046D:C52B.0002:
input,hiddev96,hidraw1: USB HID v1.11 Mouse [Logitech USB Receiver] on
usb-0000:00:14.0-3/input1
Sep 30 08:59:34 dorotea kernel: hid-generic 0003:046D:C52B.0003:
hiddev97,hidraw2: USB HID v1.11 Device [Logitech USB Receiver] on
usb-0000:00:14.0-3/input2
Sep 30 08:59:34 dorotea kernel: usb 1-3: USB disconnect, device number 3
Sep 30 08:59:34 dorotea mtp-probe[1544]: checking bus 1, device 3:
"/sys/devices/pci0000:00/0000:00:14.0/usb1/1-3"
Sep 30 08:59:39 dorotea kernel: usb 1-3: new full-speed USB device
number 4 using xhci_hcd
Sep 30 08:59:39 dorotea kernel: usb 1-3: New USB device found,
idVendor=046d, idProduct=c52b, bcdDevice=12.09
Sep 30 08:59:39 dorotea kernel: usb 1-3: New USB device strings:
Mfr=1, Product=2, SerialNumber=0
Sep 30 08:59:39 dorotea kernel: usb 1-3: Product: USB Receiver
Sep 30 08:59:39 dorotea kernel: usb 1-3: Manufacturer: Logitech
The device is recognized, then something called mtp-probe comes along
and blows it out of the water. The cycle repeats until either
mtp-probe gives up and lets the device work, or the device itself
gives up:
Sep 30 09:00:10 dorotea kernel: usb 1-3: Device not responding to setup address.
A workaround (found on the interwebs) is to add a udev rule in, say,
/etc/udev/rules.d/99-mtp-no-probe.rules:
ATTRS{idVendor}=="046d", ATTRS{idProduct}=="c52b", ENV{MTP_NO_PROBE}="1"
Now there are messages like this:
Oct 2 10:18:09 dorotea mtp-probe[973]: checking bus 1, device 3:
"/sys/devices/pci0000:00/0000:00:14.0/usb1/1-5"
Oct 2 10:18:09 dorotea mtp-probe[973]: bus: 1, device: 3 was not an MTP device
But so far nothing bad has happened.
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