Date: Sun, 11 May 2003 22:34:20 -0400 From: "Trevor S. Cornpropst" <tcornpropst@cox.net> To: Nicolas Galler <beanie@gryphonmud.com>, questions@freebsd.org Subject: Re: wheel mouse + kvm switch Message-ID: <200305112234.20914.tcornpropst@cox.net> In-Reply-To: <20030511061622.GA901@anoat.phoenix> References: <20030511061622.GA901@anoat.phoenix>
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On Sunday 11 May 2003 02:16, Nicolas Galler wrote: > I have found a lot of problem report about this on google but no solution > :( So is there a way to use the wheel mouse on freebsd with a kvm switch? > My mouse (and the wheel) works fine when plugged directly. The win2k > machine on the switch works fine (as fine as windows can go anyway). > > But when I plug the mouse through the switch freebsd doesn't see the wheel > anymore. Somehow psm decided to discard the mouse wheel data? I tried > reading the data from /dev/psm0, and get nothing for the wheel when the > mouse is in the switch (it shows data if it's plugged directly). So this > seems to be a problem with the psm driver, not the moused or X. > Well the mouse model is detected the same way (Mouse 4D+) whether or not > the switch is there, so maybe the switch is translating data, but freebsd > fails to probe the difference, so is there a way to force the driver to > intellimouse or something? The switch is of the plainest nameless kind so I > don't think it's doing something so obscure that only windows can handle > it. This seems to be quite a common problem so I hope there is a solution > (other than going wild on psm.c myself) > > Thanks > Nicolas Galler Nicolas, I experienced the same problems you mention. My configuration was a Logitech Wheel Mouse and a Linksys 4 port KVM. I suspect the reason this works for Windows and not FreeBSD is Windows has an option in the hardware properties for your mouse "Wheel Detection: Assume wheel is present". The cause of this problem comes from the KVM switch itself. I say this because I have seen the wheel work with some KVMs and not with others. Obviously, I was aware some hardware is better than others but I thought mine was good enough ;-) Strangely, my Linksys 2 port switch worked fine. I tried several configuration options in FreeBSD and X with no success. I finally purchased a KVM switch that advertised "keyboard and mouse emulation" and that it worked with wheel mice. You can get around the keyboard and mouse emulation problem with a psm option or running moused. But, I never found a way to make the wheel work without buying a different switch. FYI, I replaced the 4 port Linksys with the IOGear mini KVM. Works great and has the cables built in. HTH, Trevor Cornpropst
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