Of course it should be possible :)
Open the Terminal and execute the following command to disable it:
dconf write /org/gnome/settings-daemon/peripherals/keyboard/repeat false
If you want to set it to default value, use
reset option as following:
dconf reset /org/gnome/settings-daemon/peripherals/keyboard/repeat
From man dconf:
dconf write KEY VALUE
dconf reset [-f] PATH
- write: Write a new value to a key.
- reset: Reset a key or an entire directory. For directories,
-f must be specified.
Also you can use
gsettings instead of
gsettings set org.gnome.settings-daemon.peripherals.keyboard repeat false
From man gsettings:
set # gsettings set SCHEMA [:PATH] KEY VALUE
Sets the value of KEY to VALUE. The value is specified as a serialised GVariant.
reset # gsettings reset SCHEMA [:PATH] KEY
Resets KEY to its default value.