Hi,
On 10/30/07, H.J. Lu <[email protected]> wrote:
> The bug report is at
>
> http://bugzilla.kernel.org/show_bug.cgi?id=2082
>
> Problem Description: When switching to another machine with a KVM
> switch and back, the mouse is out of control, with X.Org. To recover,
> I have to unplug the mouse cable and plug it back.
>
> Steps to reproduce: Have a wheel mouse connected and X.Org. Keyboard,
> Mouse and Video are connected to a KVM switch. Switch to another
> machine and back. You have lost the usage of wheel on mouse.
>
> This patch for 2.6.23 tries to reconnect the mouse after KVM switch.
> It doesn't completely solve the problem. Mouse still got a few random
> bytes after KVM switch.
Have you tried psmouse.resync_time=5 option?
Any change you coudl do
echo 1 > /sys/module/i8042/parameters/debug
before switrching KVM back and forth and send me dmesg?
> But it recovers with kernel message:
>
> psmouse.c: Wheel Mouse at isa0060/serio1/input0 lost synchronization, issuing reconnect request.
>
> instead of
>
> psmouse.c: Wheel Mouse at isa0060/serio1/input0 lost synchronization, throwing 3 bytes away.
>
> and never recovering from it.
>
I am hesitant queuing reconnect immediately - if the byte was delayed
because embedded controller was busy doing something else and we start
querying mouse at the wrong time we might lose mouse altogether.
--
Dmitry
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