-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I've watched the posts on this topic with great interest. I wonder if firmware upgrades for the KVMs you curremtly have are available which improve their USB performance? The IOGear Part # GCS1762 is firmware upgradeable and reading the product description on microcenter.com triggered this thought. Bob Cochran Claude Jones wrote: > On Monday January 21 2008 12:48:32 am Richard England wrote: >> The IOGear KVMs I mentiioned earlier were either PS2 to PS2 or >> USB to USB. There was no crossover. I was not aware of those >> until it was pointed out that they exist here. >> >> These were NOT powered units. I've seen one Belkin multiple >> connection externally powered unit (4 ports I believe) that >> it, several years ago, was a right royal pain. Things just >> never switched properly with it. Could have been that switch, >> but it was new at the time. The newer ones, however, might be >> better so do not take my anecdotal evidence too strongly >> unless you are acquiring a used Belkin. > > Thanks for that clarification, Richard. I've got a IOGear PS2 > model that has been buried under a mound of cables behind my > monitor stack for three years, or so, and I've never had to get > to it because it just works. This whole problem is actually > someone else's, my employer, and his situation is slightly > complicated by the fact that he's got a kvm connected to his > kvm; he's got an Avocent remote unit that is connected via CAT5 > to a KVM in our server farm, so he can do server administration > from his office; the remote Avocent unit in his office then > connects to a local KVM which allows him to switch between > various computers in his office and the remote Avocent. > > We suspect that the issues he's having involve the USB protocols > and how they behave. I think with USB KVM's, at least older > units, each time you switch to a different machine, the machine > had to redetect the keyboard and mouse as > newly-plugged-in-devices, and this was causing issues in the > environment in which we were operating. > > We're going to look at a newer IOGear unit I found on their > website that seems to address this: "With IOGEAR's USB Sniffing > Technology you can use your favorite USB keyboard to control all > features of the USB KVM. The MiniView™ II USB features keyboard > and mouse emulation so your computer never loses touch with its > peripherals." (From the IOGear website page on the model > #GCS124U KVM) > > Hopefully, the emulation will solve the issues we've been having. > I'll report back since this seems to be an issue of interest. > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFHlMcS6lKCpcLGBRgRAgapAJ9gVvdF0eVFFWoW4A2Yx0TTYFtd0wCfae3U /hw4iYbx3B33+5PNjoSM/OI= =rqqe -----END PGP SIGNATURE-----