I've recently been experiencing some rather weird "mouse tricks." The mouse cursor suddently begins flying around, randomly clicking, until it reaches the upper-right edge of the screen. I've been searching around LQ and Google and there doesn't appear to be a solution. I've read that this has been fixed in kernel 2.6.16, but clearly it hasn't.

The mouse problems occur more frequently some times than others and I cannot figure out if it's something very specific I'm doing that's causing the odd behavior or if it's just random.

dmesg:
psmouse.c: Explorer Mouse at isa0060/serio1/input0 lost synchronization, throwing 1 bytes away.
psmouse.c: resync failed, issuing reconnect request

uname -a:
Linux c-67-167-188-115 2.6.16-2-686-smp #1 SMP Sat Jul 15 22:33:00 UTC 2006 i686 GNU/Linux

Xorg:
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/psaux"
Option "Protocol" "IMPS/2"
Option "Emulate3Buttons" "true"
Option "ZAxisMapping" "4 5"
EndSection

My mouse type is Intellimouse Explorer. It is USB with a PS/2 adaptor.

At first I had the device set as it is here, then I changed it to ExplorerPS/2, and then back to the default (I had read this was a potential solution).


Thanks

This is getting a little bit out of control. My mouse has been going a bit haywire lately. Does anyone have any ideas as to what might be causing this odd behavior?

I cannot say with 100% certainty as of yet, but it would seem _hurray_ this oddity appears to be fixed in kernel 2.6.17. I can only hope my luck continues to last. I'll post again if it doesn't.


Linux c-67-167-188-115 2.6.17-2-686 #1 SMP Wed Sep 13 16:34:10 UTC 2006 i686 GNU/Linux

It seems my luck has given out on me. After many hours of use, I'm getting the "mouse with a mind of its own" thing again, although it seems to be much less frequent now.

I have not have any problems with my PS/2 mouse even though it is connect through a KVM switch; knock on wood. Yes, I am using kernel version 2.6.16 but it is not SMP.

1) Try different protocols.
2) Try specify a module option like rate, resetafter, resync_time, and many others.
3) Set PS/2 mouse as a module instead as built-in.

Number 3 has always works for me on majority of computers that I have used.

First off, thanks for your reply.

1) I've tried IMPS/2 and ExplorerPS/2. Any others you suggest I try?
2) I'm not really sure how to do this one.
3) The PS/2 mouse is using the psmouse module.

I can't imagine this is relevant at all, but in the interest of full disclosure I should say my mouse is actually usb but I have a ps/2 adapator.

The mouse that is connected through a KVM switch is a Logitech MX300. It is a USB mouse connected to a USB to PS/2 adapter. Again my works ok with out any additional setup.

You can either disconnect your mouse and adapter and reconnect them. Probably corrorision has made your input device malfunction. Also the mouse wire might be the problem.

To use a certain option, you can either echo to sysfs or specify the option. To specify the option you have to include it while loading the module. Type the folling in one of the tty (CTL+ALT+F1...F4) terminals.

modprobe -vr psmouse
modprobe -v psmouse resync_time=0

Do not do the above in a virtual terminal like xterm, konsole, rxvt because you will not be able to use the cursor. Though SHIFT+NumLock will activate the keyboard's keypad as the mouse cursor.

In /etc/modules.conf, /etc/modprobe.conf, or /etc/rc.modules, include the following with the options that works.

options psmouse resync_time=0