Sorry if this hijacks the posters question a little...but it's the first thing that came to mind when I saw the topic. I'm not sure if others have found the same, but in cases where I've needed a KVM, including my current setup at home, I've spent what seems like man years of my life screwing with KVMs. A KVM that does NOT totally suck is an animal that does NOT exist.
My current setup works with many quirks that constantly screw with me, and it took forever to get to this point. I went through two KVMs that were totally unusable for various reasons...stuck keys in Linux only(??)...you name it. When I finally got one that seemed to play nicely I discovered that it didn't work with my T43 Thinkpad docking station. I found other users that had encountered the same issue with this switch ONLY on the T43 docking station...unbelievable. Believe it or not, just for the hell of it, I tried putting one of the bad KVMs (that I'd kept too long to return) in between my working one and the T43 and it worked...only because the two switches used different hot keys. That's the kludgy setup I have to this day.
However that setup is all PS2, so now that I'm overdue to replace my Linux workstation, I get to do it all over again, or figure out how to live without the KVM. Seriously...has anyone else found this things to suck this bad???