Re: libinput recognizies my keyboard, but not its arrow keys

According to Gary Jennejohn <[email protected]> on Mon, 01/29/24 at 14:38:
> 
> I have this keyboard also:
> ukbd0: <Chicony PFU-65 USB Keyboard, class 0/0, rev 1.10/1.02, addr 2>
> and I'm also using libinput.

Great!  And here I thought I was the only one left still using that keyboard!

Thanks for your suggestion.

> I've used this keyboarad for many years with several Xorg versions.

Likewise here.

> But I have never used Section "InputClass" for any keyboard I've ever
> had and all keys on my PFU-65 work correctly.

I don't recall why several years ago I used Section "InputClass" on the
older system.  After many, many failed attempts, I finally did settle
on Section "InputClass" in my current working configuration (minus the
arrow keys).

I think one of the attempts to get my keyboard to even be recognixed
initiall was to name the section: Section "InputDevice" and this is
even suggested by the "# man 4 libinput" man page.

> This is the trace emitted in Xorg.log.0:
> 
> [ 212.246] (**) System keyboard multiplexer: Applying InputClass
> "libinput keyboard catchall"
> [ 212.293] (**) AT keyboard: Applying InputClass "libinput keyboard catchall"
> [ 212.293] (II) Using input driver 'libinput' for 'AT keyboard'
> [ 212.299] (**) Chicony PFU-65 USB Keyboard: Applying InputClass
> "libinput keyboard catchall"
> [ 212.299] (II) Using input driver 'libinput' for 'Chicony PFU-65 USB Keyboard'
> 
> Maybe you could try commenting out the InputClass entry and see what happens.

I did comment out that entire Section, but after restarting an x11 session, I
had no functioning keyboard at all.  Here are the relevant lines from my
/var/logl/Xorg.0.log file:

[ 11346.032] (II) config/udev: Adding input device System keyboard multiplexer (/dev/input/event0)
[ 11346.032] (II) No input driver specified, ignoring this device.
[ 11346.032] (II) This device may have been added with another device file.
[ 11346.032] (II) config/udev: Adding input device System mouse (/dev/input/event1)
[ 11346.032] (**) System mouse: Applying InputClass "Mouse0"
[ 11346.032] (II) LoadModule: "libinput"
[ 11346.032] (II) Loading /usr/local/lib/xorg/modules/input/libinput_drv.so
[ 11346.033] (II) Module libinput: vendor="X.Org Foundation"
[ 11346.033]    compiled for 1.21.1.10, module version = 1.3.0
[ 11346.033]    Module class: X.Org XInput Driver
[ 11346.033]    ABI class: X.Org XInput driver, version 24.4
[ 11346.033] (II) Using input driver 'libinput' for 'System mouse'
[ 11346.033] (**) System mouse: always reports core events
[ 11346.033] (**) Option "Device" "/dev/input/event1"
[ 11346.034] (II) event1  - System mouse: is tagged by udev as: Mouse
[ 11346.035] (II) event1  - System mouse: device is a pointer
[ 11346.035] (II) event1  - System mouse: device removed
[ 11346.035] (II) libinput: System mouse: Step value 0 was provided, libinput Fallback acceleration function is used.
[ 11346.035] (II) libinput: System mouse: Step value 0 was provided, libinput Fallback acceleration function is used.
[ 11346.035] (II) libinput: System mouse: Step value 0 was provided, libinput Fallback acceleration function is used.
[ 11346.035] (**) Option "config_info" "udev:/dev/input/event1"
[ 11346.035] (II) XINPUT: Adding extended input device "System mouse" (type: MOUSE, id 6)
[ 11346.036] (**) Option "AccelerationScheme" "none"
[ 11346.036] (**) System mouse: (accel) selected scheme none/0
[ 11346.036] (**) System mouse: (accel) acceleration factor: 2.000
[ 11346.036] (**) System mouse: (accel) acceleration threshold: 4
[ 11346.036] (II) event1  - System mouse: is tagged by udev as: Mouse
[ 11346.037] (II) event1  - System mouse: device is a pointer
[ 11346.037] (II) config/udev: Adding input device Power Button (/dev/input/event2)
[ 11346.037] (II) No input driver specified, ignoring this device.
[ 11346.037] (II) This device may have been added with another device file.
[ 11346.037] (II) config/udev: Adding input device AT keyboard (/dev/input/event3)
[ 11346.037] (II) No input driver specified, ignoring this device.
[ 11346.037] (II) This device may have been added with another device file.
[ 11346.037] (II) config/udev: Adding input device Chicony PFU-65 USB Keyboard (/dev/input/event4)
[ 11346.037] (II) No input driver specified, ignoring this device.
[ 11346.037] (II) This device may have been added with another device file.
[ 11346.037] (II) config/udev: Adding input device Logitech Trackball (/dev/input/event5)
[ 11346.037] (**) Logitech Trackball: Applying InputClass "Mouse0"
[ 11346.037] (II) Using input driver 'libinput' for 'Logitech Trackball'
[ 11346.037] (**) Logitech Trackball: always reports core events
[ 11346.037] (**) Option "Device" "/dev/input/event5"
[ 11346.038] (II) event5  - Logitech Trackball, class 0/0, rev 1.10/2.20, addr 30: is tagged by udev as: Mouse
[ 11346.039] (II) event5  - Logitech Trackball, class 0/0, rev 1.10/2.20, addr 30: device is a pointer
[ 11346.039] (II) event5  - Logitech Trackball, class 0/0, rev 1.10/2.20, addr 30: device removed
[ 11346.039] (II) libinput: Logitech Trackball: Step value 0 was provided, libinput Fallback acceleration function is used.
[ 11346.039] (II) libinput: Logitech Trackball: Step value 0 was provided, libinput Fallback acceleration function is used.
[ 11346.039] (II) libinput: Logitech Trackball: Step value 0 was provided, libinput Fallback acceleration function is used.
[ 11346.039] (**) Option "config_info" "udev:/dev/input/event5"
[ 11346.039] (II) XINPUT: Adding extended input device "Logitech Trackball" (type: MOUSE, id 7)
[ 11346.039] (**) Option "AccelerationScheme" "none"
[ 11346.039] (**) Logitech Trackball: (accel) selected scheme none/0
[ 11346.039] (**) Logitech Trackball: (accel) acceleration factor: 2.000
[ 11346.039] (**) Logitech Trackball: (accel) acceleration threshold: 4
[ 11346.040] (II) event5  - Logitech Trackball, class 0/0, rev 1.10/2.20, addr 30: is tagged by udev as: Mouse
[ 11346.041] (II) event5  - Logitech Trackball, class 0/0, rev 1.10/2.20, addr 30: device is a pointer

I ran "# libinput list-devices" as root and have attached the output here:

Device:           System keyboard multiplexer
Kernel:           /dev/input/event0
Group:            1
Seat:             seat0, default
Capabilities:     keyboard 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles:   n/a
Rotation:         0.0

Device:           System mouse
Kernel:           /dev/input/event1
Group:            2
Seat:             seat0, default
Capabilities:     pointer 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: disabled
Calibration:      n/a
Scroll methods:   button
Click methods:    none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles:   flat *adaptive custom
Rotation:         0.0

Device:           Power Button
Kernel:           /dev/input/event2
Group:            3
Seat:             seat0, default
Capabilities:     keyboard 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles:   n/a
Rotation:         0.0

Device:           AT keyboard
Kernel:           /dev/input/event3
Group:            4
Seat:             seat0, default
Capabilities:     keyboard 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles:   n/a
Rotation:         0.0

Device:           Chicony PFU-65 USB Keyboard, class 0/0, rev 1.10/2.00, addr 33
Kernel:           /dev/input/event4
Group:            5
Seat:             seat0, default
Capabilities:     keyboard 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles:   n/a
Rotation:         0.0

Device:           Logitech Trackball, class 0/0, rev 1.10/2.20, addr 34
Kernel:           /dev/input/event5
Group:            6
Seat:             seat0, default
Capabilities:     pointer 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: disabled
Calibration:      n/a
Scroll methods:   button
Click methods:    none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles:   flat *adaptive custom
Rotation:         0.0

-- 
William Bulley
E-MAIL: [email protected]
<[email protected]>