Ubuntu – How to disable and enable keyboard on lenovo yoga

keyboardlenovo

I have a Lenovo Yoga 300. It works well with Ubuntu, but I have a problem with a keyboard lock.

As it is a Yoga model, it has different modes of usage. When I turn the screen it should lock the keyboard for a normal usage of tablet or tent mode, but it does not lock it.

Is there any key or command that I could use to lock keyboard and unlock it when I need? Even if there is a program for it, that would be helpful.

Best Answer

You can use xinput to achieve what you want. xinput is a utility to list available input devices, query information about a device and change input device settings. Open a terminal and execute xinput list - you will receive an output information which will read like this :

severus@Tux:~$ xinput list
⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ SynPS/2 Synaptics TouchPad                id=12   [slave  pointer  (2)]
⎣ Virtual core keyboard                     id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ↳ Power Button                              id=6    [slave  keyboard (3)]
    ↳ Video Bus                                 id=7    [slave  keyboard (3)]
    ↳ Video Bus                                 id=8    [slave  keyboard (3)]
    ↳ Power Button                              id=9    [slave  keyboard (3)]
    ↳ HP Truevision HD                          id=10   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=11   [slave  keyboard (3)]
    ↳ HP WMI hotkeys                            id=13   [slave  keyboard (3)]
    ↳ HP Wireless hotkeys                       id=14   [slave  keyboard (3)]

To lock a device execute this command : xinput --set-prop <device id> "Device Enabled" 0

Example :

To lock the keyboard : xinput --set-prop 11 "Device Enabled" 0 (11->device id from list)

To unlock it, xinput --set-prop <device id> "Device Enabled" 1

Caution! : Do not lock yourself out by locking all devices.

To lock for a given amount of time, say 5 minutes, do this :

xinput --set-prop <device id> "Device Enabled" 0 ; sleep 5m ; xinput --set-prop <Device id> "Device Enabled" 1

Note : Logging out and logging back in will unlock all devices.

Info:

I think the Hotkey Fn+F6 works since some time If you install the latest Ubuntu updates.

Rotate the screen and touchscreen input 180 degrees

create the script /usr/local/bin/rotate-screen.sh
(I enhanced that script there at gist so it rotates 90° also)

#!/bin/bash
# This script rotates the screen and touchscreen input 180 degrees, disables the touchpad, and enables the virtual keyboard
# And rotates screen back if the touchpad was disabled

isEnabled=$(xinput --list-props 'SynPS/2 Synaptics TouchPad' | awk '/Device Enabled/{print $NF}')

if [ $isEnabled == 1 ] 
then
    echo "Screen is turned upside down"
    xrandr -o inverted
    xinput set-prop 'ELAN Touchscreen' 'Coordinate Transformation Matrix' -1 0 1 0 -1 1 0 0 1
    xinput disable 'SynPS/2 Synaptics TouchPad'
    # Remove hashtag below if you want pop-up the virtual keyboard  
    # onboard &
else
    echo "Screen is turned back to normal"
    xrandr -o normal
    xinput set-prop 'ELAN Touchscreen' 'Coordinate Transformation Matrix' 1 0 0 0 1 0 0 0 1
    xinput enable 'SynPS/2 Synaptics TouchPad'
    # killall onboard 
fi

and give it executable rights:

sudo chmod +x /usr/local/bin/rotate-screen.sh

then

1.

create *.desktop file in /usr/share/applications/

gksudo gedit /usr/share/applications/rotate-screen.desktop

2.

Paste below text:

[Desktop Entry]
Type=Application
Terminal=false
Icon=/usr/share/icons/hicolor/48x48/apps/un-reboot.png
Name=rotate-screen
Exec=/usr/local/bin/rotate-screen.sh
Categories=Utility;

Then run the script via the Unity launcher startmenu (type "rotate-screen")

Source:

https://askubuntu.com/a/446125/34298

Ubuntu – How to enable keyboard when yoga pad 2 is folded as a tablet

You must disable the HID Sensor collection under Device Manager --> Sensors for this to work. I'm not sure exactly what this device controls but so far I've found that it does control the keyboard on/off when in tablet mode. So no, this is not hardware based.

Best Answer

Related Solutions

Ubuntu – Rotate touchscreen and disable the touchpad on Yoga 2 Pro in rotated mode

Info:

Rotate the screen and touchscreen input 180 degrees

1.

2.

Source:

Ubuntu – How to enable keyboard when yoga pad 2 is folded as a tablet

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