Hello Julien,

interestingly I have the same mouse and the same problem. But I created especially to prevent these problems a persistent symlink at the event device dealing with my mouse via udev. So my xorg.conf device section looks like the following:

Section "InputDevice"
        Identifier      "Logitech MX510"
        Driver          "evdev"
        Option          "SendCoreEvents"        "true"
        Option          "Device"                "/dev/input/event-mx510"
EndSection

Nevertheless, if I replug the mouse or even plug in a new device at an usb port in the same row of my notebook (it has 4 jacks, probably connected internally to two controllers), the mouse stops responding. Hereupon the following lines appear in the xorg-log:

(EE) Read error: No such device (19, -1 != 16)
(II) Logitech MX510: Off
(II) Logitech MX510: Off
(II) UnloadModule: "evdev"

Perhaps the error is caused by some other components of the system, maybe HAL or something similar. The system logs also do not contain any suspicious entries.
Maybe you have a clue where I can start looking for the cause(s) of this 
problem?

Best regards

Matthias




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