I'm afraid I have to reassign this back to the kernel. In comment 4 it
is shown that the Fn+Fx keys work, but the topmost keys (labelled "3" in
your image) all generate the same scan code 0x8D, so it's impossible to
assign these to a keycode. These scan codes need to be fixed in the
driver, or it could even be possible that the non-Windows ACPI tables of
these Samsung models are just broken.

The other issue is that the keyboard backlight key produces the correct
keycode, but userspace does not actually handle it. That is tracked in
bug 1203592.

** Package changed: systemd (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
       Status: In Progress => New

** Summary changed:

- [keymap] Toshiba satellite A660: backlight key does not work
+ Toshiba satellite A660: topmost keys all produce the same scancode

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https://bugs.launchpad.net/bugs/1169386

Title:
  Toshiba satellite A660: topmost keys all produce the same scancode

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