USB KVM Raritan DKX2-232

Andrey Urtaykin mlistsw at
Thu Mar 12 06:05:24 PDT 2009

Hi all

This KVM (Raritan DKX2-232) uses only one USB connector for both mouse 
and keyboard.
I have several servers with different hardware and FreeBSD from 6.2 to
7.1, and no one works properly the problem is: input doesn`t work at all
OR/AND mouse moves interpretend  as keyboard pressings OR/AND input with
like CTRL pressed, (for example if you hit "T" KVM sending SIGUSR to
Tryed all possible bios options(Legacy USB, Fast USB, etc) .
BUT!  IF i connect PS/2 keyboard to RUNNING server, and pressing several
key on it - miracle happens and KVM works properly for sometime...

Server info(this server interpretend mouse moves as text and keyboard
pressings as signals):
uhci0: <Intel 82801CA/CAM (ICH3) USB controller USB-A> port
0x4040-0x405f irq 16 at device 29.0 on pci0
ukbd0: <RU RU-CIM, class 0/0, rev 2.00/0.00, addr 2> on uhub1
kbd2 at ukbd0

usbdevs -v:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000),
Intel(0x0000), rev 1.00
port 1 addr 2: full speed, power 100 mA, config 1, RU-CIM(0x1005), 
RU(0x14dd), rev 0.00 <<-- this is KVM

uname -a:
FreeBSD xx 7.1-RELEASE FreeBSD 7.1-RELEASE #3: Fri Jan  2 13:30:10 MSK 
2009     fxp at xx:/usr/obj/usr/src/sys/GENERIC  i386

kbdcontrol -k /dev/ukbd0 < /dev/console
kbdcontrol: cannot open /dev/ukbd0: Device busy

kldload kbdmux
kldload: can't load kbdmux: File exists

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