My laptop computer, have Fn + F7 key combination, the function of the manufacturer to design is the screenshots,
No responses under Linux, however, the key combination,

Switch to the command line terminal, use the

Showkey - scancodes
Showkey - keycodes

These two commands, are unable to capture the key combination of keyboard code,

My operating system is: Debian 10.2 amd64
The kernel version: 4.19.0 # 1-6 - amd64 SMP Debian 4.19.67-2 + deb10u2 (2019-11-11) x86_64

Dmesg display keyboard driver information:
Input: [2.772054] AT the rid_device_info_keyboard as Translated Set 2
/devices/platform/i8042/serio0/input/input0

Like this kind of keyboard key combination does not work, is the reason why the kernel keyboard driver?