On Wed, 2007-03-07 at 11:07 -0800, Gareth Howlett wrote: > I had a similar problem using one of our KVMs... it was very specific to > a certain KVM/mobo combination though - a SuperMicro P8SCT motherboard > with a noname (read: _cheap_) rack-mount KVM. If you had the KVM > selected to the SM machine when it booted, the keyboard and mouse would > always work. If the KVM wasn't selecting that machine during boot, the > SM machine would never take keyboard/mouse inputs. Luckily the KVM > would still show you the video but the only access you have to the box > is through the network. Any other KVMs will work and attaching a PS/2 > keyboard/mouse always works. The funny thing is that another SM machine > right next to it (a PDSMi+) works just fine. > > I have a feeling the SM mobo would probe the PS/2 ports for a > Keyboard/Mouse and if the KVM wasn't selected on that channel when the > probe happened, the KVM wouldn't respond properly and the mobo would > turn-off the PS/2 ports. Unfortunately I wasn't able to figure-out > whether this was a linux kernel, kudzu or BIOS probe though... Anyone > here have any thoughts on that one? I was under the impression that decent PS/2 KVMs would emulate their being a mouse and keyboard connected to each device, all the time, albeit one that was doing nothing, to avoid those sorts of problems (PCs ignoring PS/2 ports or devices if booted up without anything apparently connected; Windows being unable to cope with you unplugging a PS/2 device, replugging it, then you wanting to carry on using it, etc.). I think for any system you're using PS/2 with, and a KVM, you'd want to turn off any auto-disable PS/2 options in your BIOS, to make life easier. -- (This box runs FC6, my others run FC4 & FC5, in case that's important to the thread.) Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists.
