KVM performance loss?

Dr3n · 10-03-2005, 01:35 PM

This doesn't pertain directly with Linux, but I am just curious: Do you suffer performance loss (video/mouse) whilst using a KVM switch? I wouldn't think there should be any loss, but I'm wondering about this. Anyone know? Thanks.

acid_kewpie · 10-03-2005, 01:40 PM

well it could easily depend what kind of KVM it is, Physical, IP etc... personally I just connected up an old ps/2 4way brick i found knocking around at work today, working like an absolute charm.

Dr3n · 10-03-2005, 01:47 PM

Hardware 2 port is what I'm refering to. I do much gaming at home, so if I was running my video and mouse between two PC's, would I lose any performance. I'm sure I woudln't notice a difference to much. I'm getting KVM soon, that's why I asked.

acid_kewpie · 10-03-2005, 02:11 PM

well in theory you have the lag from repeating the signal, but it's not going to be noticable at all

Dr3n · 10-13-2005, 08:09 AM

Tell me another one. I received my KVM yesterday, hooked it up adn tried it out. Wow, did I ever loose performance! My mouse was screwed up with the drivers and what not, and my keyboard take a few seconds to repeat a letter or when I push space the cursor moves really slowly. I also notice these weird squiggly lines on my LCD. I wonder if the KVM was bad, i got it off eBay for $15. =\

acid_kewpie · 10-13-2005, 08:33 AM

well i've not noticed any lag. things go completely weird occasionally, but that's a different thing really.

Dr3n · 10-18-2005, 05:46 PM

For some freak reason, my server only boots with a keyboard that is plugged into the KVM that I just got. Other wise the kernel doesn't boot. Also, you have to hit the external button on the KVM to "switch" to the other computer (even though my server is the only PC connected to the KVM) then switch back in order for the kernal to boot up.

Sometimes when I'm messing around trying to figure out why this is, there is a message on the screen about an AT connector or keyboard. It's a PS/2 port. Would the kernel some how think the keyboard port on my mobo is an AT by mistake?!? I've tried with a bunch of keyboards that I have, and tried messing with the BIOS and setting it back to factory. This whole thing makes no sense at all.

I hope this made any sense to someone out there.