Erratic mouse behavior on B1000 with USB->PS/2 adapter

From: Benjamin Gawert (bgawert_at_gmx.de)
Date: 01/13/05 

Date: Thu, 13 Jan 2005 19:09:51 +0100

I have a problem with my B1000 (256MB RAM, FireGL-UX) running HP-UX 11i
B.11.11 (with Dec. '04 HWE and GOLDQPK and all the latest patches regarding
ITRC patch assessment). If I connect a generic Logitech USB keyboard and USB
mouse everything works fine. However, if I connect a PS/2 keyboard and PS/2
mouse via an USB->PS/2 adapter, only the keyboard works correctly. The mouse
begins to behave erratic (left mouse key seems stuck, vertical mouse
movement leads to the cursor moving horizontally and jumping back as soon as
mouse movement starts).

I did an ioscan -funC usbhid and got these results:

With USB->PS/2 adapter:

# ioscan -funC usbhid
Class I H/W Path Driver S/W State H/W Type Description
======================================================================
usbhid 0 10/0/14/2.1.2 hid CLAIMED DEVICE USB HID Kbd(0) Mouse(1)
/dev/hid/firstkbd /dev/hid/hid_015
/dev/hid/firstmouse /dev/hid/kbd_000
/dev/hid/hid_000 /dev/hid/kbd_001
/dev/hid/hid_001 /dev/hid/kbd_002
/dev/hid/hid_002 /dev/hid/kbd_003
/dev/hid/hid_003 /dev/hid/kbd_004
/dev/hid/hid_004 /dev/hid/kbd_005
/dev/hid/hid_005 /dev/hid/kbd_006
/dev/hid/hid_006 /dev/hid/kbd_007
/dev/hid/hid_007 /dev/hid/mouse_000
/dev/hid/hid_008 /dev/hid/mouse_001
/dev/hid/hid_009 /dev/hid/mouse_002
/dev/hid/hid_010 /dev/hid/mouse_003
/dev/hid/hid_011 /dev/hid/mouse_004
/dev/hid/hid_012 /dev/hid/mouse_005
/dev/hid/hid_013 /dev/hid/mouse_006
/dev/hid/hid_014 /dev/hid/mouse_007
#

With Logitech USB keyboard and mouse I get this output:

# ioscan -funC usbhid
Class I H/W Path Driver S/W State H/W Type Description
======================================================================
usbhid 0 10/0/14/2.1.2.3 hid CLAIMED DEVICE USB HID Kbd(1) Other(2)
/dev/hid/firstkbd /dev/hid/hid_015
/dev/hid/firstmouse /dev/hid/kbd_000
/dev/hid/hid_000 /dev/hid/kbd_001
/dev/hid/hid_001 /dev/hid/kbd_002
/dev/hid/hid_002 /dev/hid/kbd_003
/dev/hid/hid_003 /dev/hid/kbd_004
/dev/hid/hid_004 /dev/hid/kbd_005
/dev/hid/hid_005 /dev/hid/kbd_006
/dev/hid/hid_006 /dev/hid/kbd_007
/dev/hid/hid_007 /dev/hid/mouse_000
/dev/hid/hid_008 /dev/hid/mouse_001
/dev/hid/hid_009 /dev/hid/mouse_002
/dev/hid/hid_010 /dev/hid/mouse_003
/dev/hid/hid_011 /dev/hid/mouse_004
/dev/hid/hid_012 /dev/hid/mouse_005
/dev/hid/hid_013 /dev/hid/mouse_006
/dev/hid/hid_014 /dev/hid/mouse_007
usbhid 2 10/0/14/2.1.4 hid CLAIMED DEVICE USB HID Mouse(0)
#

I suspect that HP-UX has a problem with keyboard and mouse being at the same
hw address. But then, HP also offers an USB->PS/2 adapter (A7782A) which is
just an OEM'd generic, so it should be possible to use the B1000 with an
USB->PS/2 adapter.

I tried several types of adapters, and several different PS/2 keyboards and
mouses. I also tried that on a c3700 which leads to the same results.

Is there any way to convince the HP XF86 server to accept mouse and keyboard
at the same hw address? Or maybe the problem is because of the numbers
behind "kbd" and "mouse". With USB devices, it's "Mouse(0)" and "Kbd(1)",
with PS/2->USB adapter its vice versa ("Mouse(1)" and "Kbd(0)"). Could this
be the reason? Any way to get HP-UX to accept it the other way around?

BTW: the adapter I tried all work fine not only on several PCs but also on
Powermac G3 and G5 and even on a Sun Blade1000.

Benjamin 

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