How to disable laptop keyboard, use USB keyboard instead?

[vin]

I am using xenialpup64 7.5 on Asus x55c laptop.
The laptop's keyboard has aged and behaves weired, typing some letters automatically.
So I have attached another usb keyboard.

In Lubuntu, in order to get rid of weired keyboard, I am using these commands....

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$ xinput list

(gives me id of AT Translated Set 2 keyboard)

That I use like this...

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$ xinput float 6

(where the id is 6)

Now, in xenialpup, I do not get "AT Translated Set 2 keyboard" by firing $ xinput list
I gives just ....

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root# xinput list
⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ Synaptics Mouse                         	id=6	[slave  pointer  (2)]
⎜   ↳ Mouse0                                  	id=7	[slave  pointer  (2)]
⎣ Virtual core keyboard                   	id=3	[master keyboard (2)]
    ↳ Virtual core XTEST keyboard             	id=5	[slave  keyboard (3)]
    ↳ Keyboard0                               	id=8	[slave  keyboard (3)]

Pl. help me regarding how to find the laptop's keyboard and disable it.

Thanks.

[vin]

Ultimately I disconnected the keyboard connector.

Before that, I tried out other commands, ref.- this url -->
https://linux.org/threads/in-puppylinux ... ead.36707/

Posting it, because it might be useful to somebody else
BTW, a user @darry1966 on linux.org was mentioning nice words about @mikewalsh