Date: Fri, 18 Aug 2000 13:34:36 -0700 From: Randy Primeaux <randy@Cloudfactory.ORG> To: Michael Matsumura <michael@limit.org> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: ps2 mouse errors (solution) Message-ID: <200008182038.NAA10998@relay.ultimanet.com> In-Reply-To: Message from Michael Matsumura <michael@limit.org> of "Thu, 17 Aug 2000 00:16:24 PDT." <20000817001624.A22518@jupiter.limit.org>
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The ps2 mouse error issue is documented in the FAQ. Certain wheelmouse and trackball products use a PS/2 SYNC protocol. SYNC is not needed to operate these products, however. http://www.freebsd.org/FAQ/x.html#AEN3087 http://www.freebsd.org/FAQ/hardware.html#PSMERR man psm For my specific issue, I turned on NOCHECKSYNC for my trackball. These are my 3-STABLE kernel config entries: # psm 0x100 NOCHECKSYNC # man psm - bit 8 NOCHECKSYNC for ThinkingMouse on KVM. device psm0 at isa? tty flags 0x100 irq 12 At my desk, I have a Kensington ExpertMouse ps/2 trackball, a KVM, and 3-STABLE (post 3.5-RELEASE). I'll soon be running an additional pair of 4-STABLE boxen on that KVM. For those of you with a MSWIN9x box on a KVM, use the standard ps/2 mouse driver to prevent the same issue. The FreeBSD FAQ and Kensington get credit for guiding me to this solution. In my opinion, I do not see this as a flaw in psm, as the flag is documented in the man page, and FreeBSD psm is not the only software with this issue. Other mouse software, on other OS platforms, also lose ps/2 sync through a keyboard-video-mouse switch. Michael Matsumura writes: > I'm using a ps2 Microsoft intellimouse v. 1.1A in XFree86 3.3.6, and > occasionally and randomly my mouse cursor just freezes and my syslog gives > me the following: > > Aug 17 00:09:28 jupiter /kernel: psmintr: out of sync (0000 != 0008). -- Randy Primeaux randy@cloudfactory.org http://cloudfactory.org/~randy/ tranze@hyperreal.org http://hyperreal.org/~tranze/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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