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First of all, try if this dconf setting is of any use:

gsettings set org.gnome.desktop.peripherals.touchpad disable-while-typing 'false'

It was stated with false while the name would imply true.

This setting should be for Xserver configurations:

gsettings set org.gnome.desktop.peripherals.touchpad send-events 'disabled'

Notebook also may disable the touchpad with Fn + F5, you may try that.

If that doesn't word, please add the output of libinput-list-devices to your question. You also may wanna have a look at this:

Touchpad Indicator

First of all, try if this dconf setting is of any use:

gsettings set org.gnome.desktop.peripherals.touchpad disable-while-typing 'false'

It was stated with false while the name would imply true.

This setting should be for Xserver configurations:

gsettings set org.gnome.desktop.peripherals.touchpad send-events 'disabled'

Notebook also may disable the touchpad with Fn+F5; you may try that.

If that doesn't work, please add the output of libinput-list-devices to your question.  You also may want to have a look at the Touchpad Indicator GNOME Shell extension.

First of all, try if this dconf setting is of any use:

gsettings set org.gnome.desktop.peripherals.touchpad disable-while-typing `false`

It was stated with false while the name would imply true.

This setting should be for Xserver configurations:

gsettings set org.gnome.desktop.peripherals.touchpad send-events `disabled` (corrected)

Notebook also may disable the touchpad with Fn + F5, you may try that.

If that doesn't word, please add the output of libinput-list-devices to your question. You also may wanna have a look at this:

Touchpad Indicator

First of all, try if this dconf setting is of any use:

gsettings set org.gnome.desktop.peripherals.touchpad disable-while-typing 'false'

It was stated with false while the name would imply true.

This setting should be for Xserver configurations:

gsettings set org.gnome.desktop.peripherals.touchpad send-events 'disabled'

Notebook also may disable the touchpad with Fn + F5, you may try that.

If that doesn't word, please add the output of libinput-list-devices to your question. You also may wanna have a look at this:

Touchpad Indicator

First of all, try if this dconf setting is of any use:

gsettings set org.gnome.desktop.peripherals.touchpad disable-while-typing `false`

It was stated with false while the name would imply true.

This setting should be for Xserver configurations:

gsettings set org.gnome.desktop.peripherals.touchpad send-events `enabled`

Notebook also may disable the touchpad with Fn + F5, you may try that.

If that doesn't word, please add the output of libinput-list-devices to your question.

First of all, try if this dconf setting is of any use:

gsettings set org.gnome.desktop.peripherals.touchpad disable-while-typing `false`

It was stated with false while the name would imply true.

This setting should be for Xserver configurations:

gsettings set org.gnome.desktop.peripherals.touchpad send-events `disabled` (corrected)

Notebook also may disable the touchpad with Fn + F5, you may try that.

If that doesn't word, please add the output of libinput-list-devices to your question. You also may wanna have a look at this:

Touchpad Indicator