Quoting https://github.com/systemd/systemd/pull/3906#discussion_r73828368:
> According to
> http://support.logitech.com/en_us/product/v220-cordless-optical-mouse-for-notebooks
> it seems the mouse is using a pre-version of the small unifying receiver we
> know now. If there are 2 mice with the same receiver, that means that the
> values should both be dropped IMO.
mouse:usb:v046dpc52b:name:Logitech Unifying Device. Wireless PID:402d:
MOUSE_DPI=1000@125
-# Logitech V220 Cordless Optical Mouse
-mouse:usb:v046dpc51b:name:Logitech USB Receiver:
# Logitech Performance MX
mouse:usb:v046dp101a:name:Logitech Performance MX:
# Logitech MX Master
mouse:usb:v046dpc52b:name:Logitech Unifying Device. Wireless PID:4027:
MOUSE_DPI=1200@250
-# Logitech LX8 Cordless Laser Mouse
-mouse:usb:v046dpc51b:name:Logitech USB Receiver:
- MOUSE_DPI=1300@125
- MOUSE_WHEEL_CLICK_ANGLE=15
-
# Logitech ZoneTouch Mouse T400
mouse:usb:v046dp4026:name:Logitech T400:
mouse:usb:v046dpc52b:name:Logitech Unifying Device. Wireless PID:4026: