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    wrong key mapping Volla Tablet + Volla Keyboard German version

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    • T Offline
      tusch001
      last edited by

      I bought the official keyboard to the Volla Tablet. I have the German Keyboard Layout.
      My system settings are on German language / german keyboard.
      Nearly all keys are mapped correctly (The German z / y are correct, most German mappings of special keys above the numbers are correct.)

      Yet there is one annoying fact:
      On the keyboard markings it says that <, > and | are on the 3rd level (Alt-GR or right Alt key) of y, xresp. c.
      But when I use right Alt + y, right Alt + x resp. right Alt + c the mapped keys are », « resp. ¢.
      Other third level keys as µ, @ or € are working fine. There are more third level keys but I don't know their correct mapping.

      This is a Volla Keyboard specific problem. My external bluetooth keyboard maps all keys correctly.

      My guess is that this happens because there is the physical key missing on the smaller volla keyboard which is normally present in large keyboards for these three keys and the mapping automatically uses the next numbered key.

      • Is there a temporary fix e.g. by remapping these keys?
      • Shall I file a bug report somewhere or is this forum enought?

      Thanks so far.

      Some information, fwiw:

      cat /proc/bus/input/devices

      I: Bus=0019 Vendor=0001 Product=0001 Version=0001
      N: Name="mtk-pmic-keys"
      P: Phys=
      S: Sysfs=/devices/platform/soc/10026000.pwrap/10026000.pwrap:mt6366/mtk-pmic-keys/input/input0
      U: Uniq=
      H: Handlers=kbd event0 
      B: PROP=0
      B: EV=3
      B: KEY=10000000000000 0
      
      I: Bus=0019 Vendor=0000 Product=0000 Version=0000
      N: Name="mtk-kpd"
      P: Phys=
      S: Sysfs=/devices/platform/soc/10010000.kp/input/input1
      U: Uniq=                                                                                                                                      
      H: Handlers=kbd event1                                                                                                                        
      B: PROP=0                                                                                                                                     
      B: EV=3                                                                                                                                       
      B: KEY=c000000000000 0                                                                                                                        
                                                                                                                                                    
      I: Bus=0000 Vendor=0000 Product=0000 Version=0000                                                                                             
      N: Name="mtk-tpd"                                                                                                                             
      P: Phys=                                                                                                                                      
      S: Sysfs=/devices/virtual/input/input7                                                                                                        
      U: Uniq=                                                                                                                                      
      H: Handlers=kbd event7                                                                                                                        
      B: PROP=2                                                                                                                                     
      B: EV=b                                                                                                                                       
      B: KEY=10 0 0 0 400 0 2000000 40000800 10004000000000 0
      B: ABS=665800000000000
      
      I: Bus=0000 Vendor=0000 Product=0000 Version=0000
      N: Name="himax-stylus"
      P: Phys=
      S: Sysfs=/devices/virtual/input/input8
      U: Uniq=
      H: Handlers=event8 
      B: PROP=2
      B: EV=b
      B: KEY=1c03 0 0 0 0 0
      B: ABS=f000003
      
      I: Bus=0019 Vendor=0001 Product=0001 Version=0100
      N: Name="soc:odm:gpio-keys"
      P: Phys=gpio-keys/input0
      S: Sysfs=/devices/platform/soc/soc:odm/soc:odm:gpio-keys/input/input9
      U: Uniq=
      H: Handlers=event9 
      B: PROP=0
      B: EV=21
      B: SW=1
      
      I: Bus=0019 Vendor=0000 Product=0000 Version=0000
      N: Name="mt6789-mt6366 Headset Jack"
      P: Phys=ALSA
      S: Sysfs=/devices/platform/soc/soc:sound/sound/card0/input10
      U: Uniq=
      H: Handlers=kbd event10 
      B: PROP=0
      B: EV=23
      B: KEY=40 0 0 0 0 0 0 1000000000 c000000000000 0
      B: SW=d4
      
      I: Bus=0003 Vendor=258e Product=0066 Version=0111
      N: Name="Volla Systeme GmbH"
      P: Phys=usb-musb-hdrc-1.1/input0
      S: Sysfs=/devices/platform/soc/mt_usb/musb-hdrc/usb2/2-1/2-1.1/2-1.1:1.0/0003:258E:0066.0007/input/input17
      U: Uniq=
      H: Handlers=sysrq kbd leds event2 
      B: PROP=0
      B: EV=120013
      B: KEY=1000000000007 ff9f207ac14057ff febeffdfffefffff fffffffffffffffe
      B: MSC=10
      B: LED=7
      
      I: Bus=0003 Vendor=258e Product=0066 Version=0111
      N: Name="Volla Systeme GmbH Mouse"
      P: Phys=usb-musb-hdrc-1.1/input1
      S: Sysfs=/devices/platform/soc/mt_usb/musb-hdrc/usb2/2-1/2-1.1/2-1.1:1.1/0003:258E:0066.0008/input/input18
      U: Uniq=
      H: Handlers=event3 
      B: PROP=0
      B: EV=17
      B: KEY=70000 0 0 0 0
      B: REL=903
      B: MSC=10
      
      I: Bus=0003 Vendor=258e Product=0066 Version=0111
      N: Name="Volla Systeme GmbH System Control"
      P: Phys=usb-musb-hdrc-1.1/input1
      S: Sysfs=/devices/platform/soc/mt_usb/musb-hdrc/usb2/2-1/2-1.1/2-1.1:1.1/0003:258E:0066.0008/input/input19
      U: Uniq=
      H: Handlers=kbd event4 
      B: PROP=0
      B: EV=13
      B: KEY=c000 10000000000000 0
      B: MSC=10
      
      I: Bus=0003 Vendor=258e Product=0066 Version=0111
      N: Name="Volla Systeme GmbH Consumer Control"
      P: Phys=usb-musb-hdrc-1.1/input1
      S: Sysfs=/devices/platform/soc/mt_usb/musb-hdrc/usb2/2-1/2-1.1/2-1.1:1.1/0003:258E:0066.0008/input/input20
      U: Uniq=
      H: Handlers=kbd event5 
      B: PROP=0
      B: EV=13
      B: KEY=20000000000 0 0 1000302000000 3038d8011001 1e000000000000 0
      B: MSC=10
      
      I: Bus=0003 Vendor=258e Product=0066 Version=0111
      N: Name="Volla Systeme GmbH Touchpad"
      P: Phys=usb-musb-hdrc-1.1/input1
      S: Sysfs=/devices/platform/soc/mt_usb/musb-hdrc/usb2/2-1/2-1.1/2-1.1:1.1/0003:258E:0066.0008/input/input21
      U: Uniq=
      H: Handlers=event6 
      B: PROP=5
      B: EV=1b
      B: KEY=e520 10000 0 0 0 0
      B: ABS=2e0800000000003
      B: MSC=20
      

      also there is the output of sudo snap run libinput.list-devices (after installing the snap package):

      Device:           mtk-kpd
      Kernel:           /dev/input/event1
      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
      Accel profiles:   n/a
      Rotation:         n/a
      
      Device:           mtk-pmic-keys
      Kernel:           /dev/input/event0
      Group:            2
      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
      Accel profiles:   n/a
      Rotation:         n/a
      
      Device:           Volla Systeme GmbH
      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
      Accel profiles:   n/a
      Rotation:         n/a
      
      Device:           Volla Systeme GmbH Mouse
      Kernel:           /dev/input/event3
      Group:            3
      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
      Accel profiles:   flat *adaptive
      Rotation:         n/a
      
      Device:           Volla Systeme GmbH System Control
      Kernel:           /dev/input/event4
      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
      Accel profiles:   n/a
      Rotation:         n/a
      
      Device:           Volla Systeme GmbH Consumer Control
      Kernel:           /dev/input/event5
      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
      Accel profiles:   n/a
      Rotation:         n/a
      
      Device:           Volla Systeme GmbH Touchpad
      Kernel:           /dev/input/event6
      Group:            3
      Seat:             seat0, default
      Size:             96x51mm
      Capabilities:     pointer gesture
      Tap-to-click:     disabled
      Tap-and-drag:     enabled
      Tap drag lock:    disabled
      Left-handed:      disabled
      Nat.scrolling:    disabled
      Middle emulation: disabled
      Calibration:      n/a
      Scroll methods:   *two-finger edge 
      Click methods:    *button-areas clickfinger 
      Disable-w-typing: enabled
      Accel profiles:   flat *adaptive
      Rotation:         n/a
      
      Device:           soc:odm:gpio-keys
      Kernel:           /dev/input/event9
      Group:            4
      Seat:             seat0, default
      Capabilities:     switch
      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
      Accel profiles:   n/a
      Rotation:         n/a
      
      Device:           mt6789-mt6366 Headset Jack
      Kernel:           /dev/input/event10
      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
      Accel profiles:   n/a
      Rotation:         n/a
      
      Device:           mtk-tpd
      Kernel:           /dev/input/event7
      Group:            6
      Seat:             seat0, default
      Capabilities:     keyboard touch 
      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:      identity matrix
      Scroll methods:   none
      Click methods:    none
      Disable-w-typing: n/a
      Accel profiles:   n/a
      Rotation:         n/a
      
      Device:           himax-stylus
      Kernel:           /dev/input/event8
      Group:            7
      Seat:             seat0, default
      Size:             80x128mm
      Capabilities:     touch 
      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:      identity matrix
      Scroll methods:   none
      Click methods:    none
      Disable-w-typing: n/a
      Accel profiles:   n/a
      Rotation:         n/a
      
      Device:           ProtoArc XK01 Plus Keyboard
      Kernel:           /dev/input/event11
      Group:            8
      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
      Accel profiles:   n/a
      Rotation:         n/a
      
      Device:           ProtoArc XK01 Plus Consumer Control
      Kernel:           /dev/input/event12
      Group:            8
      Seat:             seat0, default
      Capabilities:     keyboard pointer 
      Tap-to-click:     n/a
      Tap-and-drag:     n/a
      Tap drag lock:    n/a
      Left-handed:      n/a
      Nat.scrolling:    disabled
      Middle emulation: n/a
      Calibration:      n/a
      Scroll methods:   none
      Click methods:    none
      Disable-w-typing: n/a
      Accel profiles:   n/a
      Rotation:         n/a
      
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