Logitech USB Receiver [SOLVED]

[chiefbag]

Another case of Logitech mouse issues.

I have upgraded my kernel to 3.7.10-gentoo on x86_64 since then my mouse has stopped working. I have also rebuilt the X drivers as below so I suspect this might be a module issue or to do with usb3.
Anyone have any ideas I can try, below is the current status.

I emerged the following after the new kernel was running.

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emerge -va x11-libs/libXxf86vm x11-libs/libXxf86misc x11-libs/libXxf86dga x11-drivers/xf86-input-mouse x11-drivers/xf86-input-keyboard x11-drivers/xf86-input-evdev x11-base/xorg-drivers x11-base/xorg-server

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lsusb
Bus 001 Device 007: ID 046d:c526 Logitech, Inc. Nano Receiver

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dmesg
usb 1-1.4: new full-speed USB device number 7 using ehci_hcd
usb 1-1.4: New USB device found, idVendor=046d, idProduct=c526
usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-1.4: Product: USB Receiver
usb 1-1.4: Manufacturer: Logitech
input: Logitech USB Receiver as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/input/input9
hid-generic 0003:046D:C526.000B: input,hidraw1: USB HID v1.11 Mouse [Logitech USB Receiver] on usb-0000:00:1a.0-1.4/input0
input: Logitech USB Receiver as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.1/input/input10
hid-generic 0003:046D:C526.000C: input,hiddev0,hidraw2: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:1a.0-1.4/input1

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cat .config | grep LOGITECH
CONFIG_HID_LOGITECH=m
CONFIG_HID_LOGITECH_DJ=m
CONFIG_LOGITECH_FF=y

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cat .config | grep MOUSE   
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
CONFIG_MOUSE_PS2_TOUCHKIT=y
CONFIG_MOUSE_SERIAL=m
CONFIG_MOUSE_APPLETOUCH=m
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
CONFIG_MOUSE_SYNAPTICS_USB=m
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_USB_IDMOUSE is not set

[PaulBredbury]

I think the current best practice is to have this in xorg.conf:

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Section "InputClass"
    # Logitech VX Nano, 800 DPI
    Identifier      "USB wireless receiver for mouse"
    Driver "evdev"
    Option "AccelerationProfile"    "-1"
    Option "ConstantDeceleration"   "3.1"
    Option "Resolution"             "800"
    Option "SampleRate"             "500"

    # From lsusb
    MatchUSBID "046d:c526"
    MatchDevicePath "/dev/input/event*"
EndSection

The intention of that is to, erm magically, have Xorg choose the correct device from the two devices that udev sees in /dev/input/ (USB receiver, and wireless mouse).

With usbhid.mousepoll=2 in your bootloader's kernel commandline, for polling at 500hz rather than the old-fashioned default of 125hz.

[chiefbag]

@PaulBredbury excellent, thank you.

That solved my issue, I just tweaked the speed a little to my liking.

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Option "AccelerationProfile"    "2"
Option "ConstantDeceleration"   "2.5"