mouse problem on Redhat Enterprise

[Ben Scott]

On 4/24/06, Zhao Peng <greenmt at gmail.com> wrote:
> I have a switch console (Belkin) which enable me to use only one mouse
> and one keyboard for a windows machine and a linux box.
>
> I'm having a problem with the mouse (ps/2) on linux box (RedHat
> Enterprise).

  You solved your problem, but...

  I recently encountered an issue with CentOS 4.2 (RHEL clone) and
some no-name KVM switch.  It appears the 2.6 kernel has more
sophisticated built-in mouse support (to facilitate USB support), but
that something about it does not get along some KVM switches.

  Symptoms included:
- Totally erratic mouse pointer movement after switching away and back
to the Linux box
- Kernel error messages in syslog about "lost synchronization" and
"throwing bytes away"

  The fix was to add the following kernel command line parameters to
the boot loader:

	psmouse.resetafter=10 psmouse.proto=bare

  A reboot was required to put those changes into effect.  Linux
really is just like Windows now.  "You have moved your mouse.  You
must reboot for this change to take effect."

-- Ben