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Date:      Wed, 25 Jul 2001 11:00:26 -0400
From:      Daniel Frazier <dfrazier@magpage.com>
To:        Joseph Holland King <insanc@cc.gatech.edu>
Cc:        questions@FreeBSD.ORG
Subject:   Re: psmintr: out of sync
Message-ID:  <3B5EDF0A.3080706@magpage.com>
References:  <Pine.SOL.4.21.0107242125130.2367-100000@felix.cc.gatech.edu>

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Joseph Holland King wrote:

 > since i have hooked up a kvm i have started to get this message:
 > /kernel: psmintr: out of sync (0000 != 0008)
 > i get this message when the mouse is working correctly. when it
 > doesn't work i lose control of the mouse and keyboard. what does it mean
 > and more importantly what can i do to fix it? thank you.
 >


from man pcm...

    Driver Flags
       bit 8 NOCHECKSYNC
              The psm driver tries to detect the first byte of the data
packet
              by checking the bit pattern of that byte.  Although this 
method
              should work with most PS/2 pointing devices, it may
interfere with
              some devices which are not so compatible with known
devices.  If
              you think your pointing device is not functioning as
expected, and
              the kernel frequently prints the following message to the
console,

                    psmintr: out of sync (xxxx != yyyy).

              set this flag to disable synchronization check and see if it
              helps.

to set this flag recompile a kernel with "flags 0x100" added to the end
of the psm line.

device          psm0    at atkbdc? irq 12 flags 0x100


-- 
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Daniel Frazier  <dfrazier@magpage.com>   Tel:  302-239-5900 Ext. 231
Systems Administrator                    Fax:  302-239-3909
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