Date: Wed, 17 Oct 2001 15:17:48 GMT From: "Eric P Liedtke" <jesus@musinghalfwit.org> To: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> Cc: freebsd-stable@freebsd.org Subject: Re: psm0 out of sync Message-ID: <courier.3BCDA11C.000045D4@fizzbang.musinghalfwit.org> In-Reply-To: <200110170621.PAA02508@zodiac.mech.utsunomiya-u.ac.jp> References: <courier.3BCC64CB.00003D14@fizzbang.musinghalfwit.org> <15308.28757.640334.764871@zircon.zircon.seattle.wa.us> <200110170621.PAA02508@zodiac.mech.utsunomiya-u.ac.jp>
next in thread | previous in thread | raw e-mail | index | archive | help
Kazutaka YOKOTA writes: > > >Eric P Liedtke writes: > > > I am currently having a problem with my mice losing sync > > > when using a belkin KVM switch. Any time I switch over and > > > back the mouse loses sync. Is there any way I can regain > > > sync without rebooting. I've tried killing and restarting > > > moused but of course that didn't help cuz moused isn't out of > > > sync the actual device is. Any help would be appreciated. > > > >Set bit 0x8000 in the psm device by modifying your loader.conf: > > > >psm_flags=0x8000 > > > >This will force a mouse reset when switching with the kvm box. > > Not quite "reset". It disables and then re-enable the mouse operation. > > >This should be installed as the default mode and not called a "hack" > >since it is the most logical thing to do. Unfortunately, the maintainer > >of psm.c has some sort of reservations about making this behavior the > >default. My wireless mouse requires this setting with no intervening > >switch box. I never see multiple instances of reset behavior, so I > >don't know why this completely logical code path is relegated to the > >euphemism of "hack" and not made default. > > This flag has remained an option in -STABLE, because it doesn't always > work. It works in some cases, but there are cases it just doesn't. > When it doesn't, it will produce a stream of disable/enable sequence > repeatedly, and that's too bad. > > -CURRENT now has much better recovery code for the "out of sync" > error. That will be merged to -STABLE in the next few weeks, after > initial glitches are sorted out in -CURRENT. > > But, if you cannot wait, you can find the patch for -STABLE at: > > http://people.freebsd.org/~yokota/psm-out-of-sync-STABLE.diff > > Apply the patch to /sys/isa/psm.c and see how it performs > in you system. > > Kazu > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-stable" in the body of the message I am pleased to report that this patch works like a champ. I didn't need to set any flags on my psm device. I lost sync , hit the 20 bad byte count and the mouse was reset and began working correctly. Thanks for the patch Kazu. Eric Liedtke To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?courier.3BCDA11C.000045D4>