Date: Sun, 27 Oct 2002 04:50:02 -0800 (PST) From: Jens Schweikhardt <schweikh@schweikhardt.net> To: freebsd-bugs@FreeBSD.org Subject: Re: misc/44470: mouse freezed! Message-ID: <200210271250.g9RCo2Bw079582@freefall.freebsd.org>
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The following reply was made to PR misc/44470; it has been noted by GNATS.
From: Jens Schweikhardt <schweikh@schweikhardt.net>
To: Tsu-Fan Cheng <tscheng@ic.sunysb.edu>
Cc: GNATS Bug Followup <bug-followup@FreeBSD.org>
Subject: Re: misc/44470: mouse freezed!
Date: Sun, 27 Oct 2002 10:23:50 +0100
On Sat, Oct 26, 2002 at 03:25:49PM -0400, Tsu-Fan Cheng wrote:
# hi, i checked my /var/log/message, there is something like:
# Oct 23 21:27:42 bst19-196unix /kernel: psmintr: delay too long; resetting
# byte count, and
# Oct 25 14:20:12 bst19-196unix /kernel: psmintr: out of sync (0040 !=
# 0000).
# Oct 25 14:20:12 bst19-196unix /kernel: psmintr: discard a byte (1).
# are these talking about my PS2 mouse?
Yes. Please read psm(4), especially
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.
Try recompiling your kernel with this flag for device psm or maybe
add the flag to the /boot/device.hints (on -current; I'm not sure if
this way also applies to 4.x)
PS: When answering, please cc to bug-followup@freebsd.org with the
subject intact so GNATS can add our mail exchange to the audit trail.
Regards,
Jens
--
Jens Schweikhardt http://www.schweikhardt.net/
SIGSIG -- signature too long (core dumped)
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