Dear Nick,
For more than ten years I have been working with an ATEN brand KVM
switch together with several computers, including linux and openBSD
(version 4.1). In all these years I have had no problems, not with my
KVM switch, nor with any degree of disconnection. The keyboard works
flawlessly via the switch, it's only the mouse that I have a problem
with, and only with openBSD.
Op 17-08-2023 om 13:56 schreef Nick Holland:
First of all, does your mouse work directly plugged into the OpenBSD
computer?
Yes, it does.
If so, it's your KVM switch.
As I mentioned above I have been working with my KVM switch and openBSD
for over ten years with very good results.
Second...if you boot the OpenBSD machine with the KVM pointed at the
OpenBSD machine, does it work?
No, even then it won't work.
You
might be able to improve how OpenBSD deals with KVM switched mice,
because yes, it does seem to be a little more touchy than some other
OSs, but someone with good programming and HW trouble shooting
skills AND a cheap-*** POS KVM switch would have to care. Most people
that skilled generally just buy a better KVM switch and move on.
That more than ten years of loyal service proves that my KVM is of good
quality.
What does the dmesg show as you switch the KVM around? That would tell
us how the KVM works. Some are equiv. of plugging and unplugging the
mouse/keyboard/monitor, some do some kind of "keep alive" so the
computer thinks the mouse is still there. Both can cause problems of
different types (my "good" one seems to plug/unplug the mouse/keyboard,
but has a great keep-alive for the monitor).
What I've learned about my KVM switch over the past ten years is that
both the mouse and keyboard are emulated when they are switched to
another computer. Never have I had any problems with my computers when
switching with my KVM switch.
