Date: Wed, 28 Feb 2001 17:14:59 -0500 From: brian215@netscape.net To: FreeBSD-gnats-submit@freebsd.org Cc: brian215@netscape.net Subject: i386/25463: PS/2 mouse sync problems with KVM switch - /dev/sysmouse and /dev/psm0 Message-ID: <381A4B81.5931E90E.00962B8C@netscape.net>
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>Number: 25463
>Category: i386
>Synopsis: PS/2 mouse sync problems with KVM switch - /dev/sysmouse and /dev/psm0
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Feb 28 14:20:00 PST 2001
>Closed-Date:
>Last-Modified:
>Originator: Brian Dickson
>Release: FreeBSD 4.2-STABLE i386
>Organization:
Velocita
>Environment:
933Mhz PIII on Intel D815EEAAL Mboard, 256MB PC133 SDRAM, ELSA GeForce2 GTS, Maxtor 60GB 7200rpm
MS Intellimouse Optical 5-button+wheel USB/PS/2 mouse on PS/2 port (via Belkin OmniCube 2-port KVM switch (used only for keybo
ard and mouse, since monitor has two inputs))
FreeBSD bpd.pf.net 4.2-STABLE FreeBSD 4.2-STABLE #0: Wed Feb 7 18:37:33 EST 2001 root@bpd.pf.net:/usr/obj/usr/src/sys/GEN
ERIC i386
XFree86 4.0.2 (needed for GeForce2 video card).
>Description:
Switching systems using the KVM switch, the mouse loses sync.
(Other system is a (yuch) Win98 box (IBM thinkpad). That box, after a few seconds of wonkyness, regains sync.)
When switching to FreeBSD-4.2(Stable), mouse loses sync but never regains sync. Mouse movement and keyclicks
result in chaotic moves/clicks not resembling input (but at a rate corresponding to mouse activity).
Behaviour consistent across use of "Auto", "PS/2", "SysMouse" protocols, "/dev/sysmouse" or "/dev/psm0" devices,
with/without moused (as appropriate).
Other symptoms, side-effects: X programs (window manager, xterms) crash (signal 11); messages on console or vty where
X was started from include:
(WW) fcntl(7, F_SETOWN): Inappropriate ioctl for device
psmintr (message about loss of sync, 0x0000 != 0x8000 or some such hex values)
(last message repeated 491 times)
Keyboard not affected.
>How-To-Repeat:
Switching via KVM switch
Also repeatable by unplugging mouse from KVM switch (KVM switch is "smart", emulates mouse/keyboard when not connected
)
>Fix:
Reboot (possibly also via "init 1", CTRL-D)
(Works perfectly fine until/unless use KVM switch.)
Tried suggested workarounds (switch to other VTYs, via CTL-ALT-Fn; hit buttons while not moving mouse) to no avail, at
great length; Tried KVM-vendors suggestion of unplug mouse, wait 5, re-plug, also no-go.
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