Mouse problem with event driver

Peter Hutterer peter.hutterer at
Fri Feb 20 14:23:45 PST 2009

On Fri, Feb 20, 2009 at 12:03:32PM +0100, Christoph Gösgens wrote:
> I've got a problem with my mouse. Most likely something hasn't been
> configured correctly yet, but i can't find what it might be. I hope you
> can help.
> I've got two computers at my desk. A fairly new one, and an older one.
> Each has got their own screen, and my Keyboard and Mouse are connected
> to them through an USB+PS/2 KVM switch. The Mouse in question is a
> Logitech MX510.
> A short while ago i switched from the ImPS/2 Driver to the event driver
> on the newer desktop. Whenever i now switch to the old desktop, the new
> computer "loses" the mouse. I see these Messages in the Xorg.log:
> (EE) Configured Mouse: Read error: No such device
> (EE) Configured Mouse: Failed to reopen device after 10 attempts.
> (II) Configured Mouse: Close
> I then have to restart X to get the mouse back. Needless to say that's
> quite annoying :>
> If i am on a tty, i still see (like it used to be) the USB Disconnect
> messages, and when i switch back the USB Connect messages. With the old
> driver, the Mouse Device would be re-opened and with half a second delay
> or so, i could use it again.
> This is how it's configured in the xorg.conf:
> Section "InputDevice"
> Identifier "Configured Mouse"
> Driver "evdev"
> Option "CorePointer"
> # Option "Device" "/dev/input/event4"
> Option "Device" "/dev/input/mx510"
> Option "Name" "Logitech USB-PS/2 Optical Mouse"
> EndSection

short answer - don't do that.

long answer:
note that some bits are a bit stale already, especially in regards to grabbing
the devices.


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