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yuanjie.huang

Member

Registered: 2010-01-04

Posts: 15

Problem with a keyboard with more than one device node

I recently bought a noppoo mechanic keyboard and works fine in console, but later I found xorg or GNOME have some problems with it. The Caps lock cannot be lighted up, and Ctrl-Alt-F1 does not switch to console, though after switching to console with another keyboard it can switch between consoles without problem.

I found this keyboard has two device node:

 I: Bus=0003 Vendor=1006 Product=0022 Version=0111
N: Name="USB Keyboard "
P: Phys=usb-0000:00:1d.0-1.2/input0
S: Sysfs=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/input/input28
U: Uniq=
H: Handlers=kbd event14 
B: PROP=0
B: EV=120013
B: KEY=60001692004fbba0 347f47ff3ff8ffc
B: MSC=10
B: LED=7

I: Bus=0003 Vendor=1006 Product=0022 Version=0111
N: Name="USB Keyboard "
P: Phys=usb-0000:00:1d.0-1.2/input1
S: Sysfs=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.1/input/input29
U: Uniq=
H: Handlers=kbd event16 
B: PROP=0
B: EV=10001f
B: KEY=4837fff072ff32d bf54444600000000 1 30c100b17c000 267bfad941dfed 9e9effcd7fa0447f fcb80b801c007002
B: REL=40
B: ABS=100000000
B: MSC=10

I am a noob, so I can only guess it's might be xorg problem. Google and searching the forum bring me no clue, could anyone please give me any hint?
I am using the lastest xorg from repo and xkb set to normal pc104.

LMolr

Member

Registered: 2012-03-08

Posts: 1

Re: Problem with a keyboard with more than one device node

Hi, I have a noppoo choc mini and I can confirm the behaviour.
I found that outside X scroll lock and caps lock leds work fine.
Inside X, xev reports only release events for CTRL+ALT+FN combinations:

KeyRelease event, serial 34, synthetic NO, window 0x1e00001,
    root 0xad, subw 0x0, time 7140224, (171,-13), root:(1110,425),
    state 0x2c, keycode 67 (keysym 0x1008fe01, XF86Switch_VT_1), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

However, I don't know how to solve this.. ;(

EDIT: Actually, KeyPress event isn't reported by xev even if I try with another (working) keyboard, so I'm completely out of ideas.

Last edited by LMolr (2012-03-09 10:16:03)

aaronmueller

Member

Registered: 2012-08-25

Posts: 17

Website

Re: Problem with a keyboard with more than one device node

I have the exact same problem here

Here are the stuff i found for searching about this particular problem:
(bug report) https://bugs.launchpad.net/ubuntu/+sour … bug/830063
(bug report) https://bugs.freedesktop.org/show_bug.cgi?id=21266
(patch) https://lkml.org/lkml/2010/2/23/344
(mailinglist) http://marc.info/?l=linux-input&m=135047785511198&w=2
(some forum posts) http://geekhack.org/index.php?topic=17257.0

It seems this is a problem with the NKRO chip in general Some people reported that everything workes if the usb keyboard is plugged in a USB2PS2 adapter and then back in a PS22USB adapter again.
Is there any chance we can get this thing running?

Last edited by aaronmueller (2013-01-13 00:37:17)