I have a ps/2 USB Intellimouse plugged into the ps/mouse port with the USB-PS/2 adapter that comes with the mouse. All works OK in Windows so there doesn't appear to be a hw problem. When I run Linux the mouse does not work. Also if I cat /dev/mouse the keyboard locks. I can reboot several times plugging the mouse into the PC's USB port then back into the PS/2 adapter/port and kudzu removes the Intellimouse PS/2 and if I set to USB all is OK. I made sure the keyboard goes into the keyboard ps/2 port and the mouse into its PS/2 port. The Intellimouse and keyboard runs fine with the mouse plugged into the USB port and keyboard into the PS/2 port. I run mouseconfig and set the mouse as a Intellimouse USB. I telnet into the PC and /proc/interrupts all seem OK when mouse is configed as PS/2 Intellimouse. IRQ 12 is PS/2 mouse and IRQ 1 is keyboard with no overlaps. If a run mouseconfig and setup as any kind of PS/2 mouse, e.g. generic, etc. the problem still occurs. In my /etc/X11/XF86Conf I have for identifier "Mouse0" the Option "Device" "/dev/mouse". I have changed this to "/dev/psaux" with mouse running as a Intellimouse USB and the keyboard stops when running X (in GNU). It appears that I do not have psaux.o loaded on my machine. When I do a /sbin/lsmod I have keybdev and mousedev module loaded. Removing and modprobing them while everything is locked from a telnet session does not help. I really want to get the Intellimouse to work with the adapter-PS/2 port. Any suggetions? chris BTW when I ran Redhat 7.2 all was fine with the Intellimouse under ps/2 except the wheel was application dependent.

Have you got Protocol "IMPS/2" in your X config?

Yes. Below is the pertinant lines from the XF86Conf file when Intelleimouse is plugged into the USB port and all is OK and (!?) when the Intellimouse is plugged into the USB-PS/2 adapter and PS/2 port and mouseconfig is run and mouse is setup as PS/2 Intellimouse. Nothing seems to change from USB or PS/2 setup. Section "InputDevice" # Modified by mouseconfig Identifier "Mouse0" # Modified by mouseconfig Driver "mouse" Option "Device" "/dev/mouse" Option "Protocol" "IMPS/2" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "InputDevice" Identifier "Mouse1" Driver "mouse" Option "Device" "/dev/input/mice" Option "Protocol" "IMPS/2" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection

Have you tried changing both devices to "/dev/psaux"? Don't think I can be of much more assistance as I don't have a USB mouse!=o(

Haven't tried both set to psaux. Since the keyboard froze when mouse0 was set to psaux I didn't pursue it any further. I am wondering if it is an X issue and if XF86Config setting are involved. I can get the keyboard and mouse to lock before I even go into X terminal. By just running mouseconfig and the cat /dev/mouse command locks the keyboard. Never do get any output when I do the cat /dev/mouse command when the mouse is configured as a PS/2 Intellimouse under mouseconfig. Do get all the correct output from cat /dev/mouse when I set mouse to a USB Intellimouse with mouseconfig. This is all from the console not running X terminal. chris