Here's the output I don't see the required element on show.
davmor2@davmor2-AMILO-Li-2727:~$ sudo lsinput [sudo] password for davmor2: /dev/input/event0 bustype : BUS_HOST vendor : 0x0 product : 0x5 version : 0 name : "Lid Switch" phys : "PNP0C0D/button/input0" bits ev : EV_SYN EV_SW
/dev/input/event1 bustype : BUS_HOST vendor : 0x0 product : 0x3 version : 0 name : "Sleep Button" phys : "PNP0C0E/button/input0" bits ev : EV_SYN EV_KEY
/dev/input/event2 bustype : BUS_HOST vendor : 0x0 product : 0x1 version : 0 name : "Power Button" phys : "LNXPWRBN/button/input0" bits ev : EV_SYN EV_KEY
/dev/input/event3 bustype : BUS_I8042 vendor : 0x1 product : 0x1 version : 43841 name : "AT Translated Set 2 keyboard" phys : "isa0060/serio0/input0" bits ev : EV_SYN EV_KEY EV_MSC EV_LED EV_REP
/dev/input/event4 bustype : (null) vendor : 0x0 product : 0x0 version : 0 name : "HDA Intel Headphone" phys : "ALSA" bits ev : EV_SYN EV_SW
/dev/input/event5 bustype : BUS_I8042 vendor : 0x2 product : 0x7 version : 4785 name : "SynPS/2 Synaptics TouchPad" phys : "isa0060/serio2/input0" bits ev : EV_SYN EV_KEY EV_ABS
/dev/input/event6 bustype : BUS_HOST vendor : 0x0 product : 0x6 version : 0 name : "Video Bus" phys : "LNXVIDEO/video/input0" bits ev : EV_SYN EV_KEY
Here's the output I don't see the required element on show.
davmor2@ davmor2- AMILO-Li- 2727:~$ sudo lsinput button/ input0"
[sudo] password for davmor2:
/dev/input/event0
bustype : BUS_HOST
vendor : 0x0
product : 0x5
version : 0
name : "Lid Switch"
phys : "PNP0C0D/
bits ev : EV_SYN EV_SW
/dev/input/event1 button/ input0"
bustype : BUS_HOST
vendor : 0x0
product : 0x3
version : 0
name : "Sleep Button"
phys : "PNP0C0E/
bits ev : EV_SYN EV_KEY
/dev/input/event2 button/ input0"
bustype : BUS_HOST
vendor : 0x0
product : 0x1
version : 0
name : "Power Button"
phys : "LNXPWRBN/
bits ev : EV_SYN EV_KEY
/dev/input/event3 serio0/ input0"
bustype : BUS_I8042
vendor : 0x1
product : 0x1
version : 43841
name : "AT Translated Set 2 keyboard"
phys : "isa0060/
bits ev : EV_SYN EV_KEY EV_MSC EV_LED EV_REP
/dev/input/event4
bustype : (null)
vendor : 0x0
product : 0x0
version : 0
name : "HDA Intel Headphone"
phys : "ALSA"
bits ev : EV_SYN EV_SW
/dev/input/event5 serio2/ input0"
bustype : BUS_I8042
vendor : 0x2
product : 0x7
version : 4785
name : "SynPS/2 Synaptics TouchPad"
phys : "isa0060/
bits ev : EV_SYN EV_KEY EV_ABS
/dev/input/event6 video/input0"
bustype : BUS_HOST
vendor : 0x0
product : 0x6
version : 0
name : "Video Bus"
phys : "LNXVIDEO/
bits ev : EV_SYN EV_KEY