I want to show my scancodes, because Ubuntu doesn't map my keyboard correctly. (Multiple keys (Alt, Alt Gr and Strg) have the same keycode and act like Caps Lock).
Windows 10 maps my keyboard correctly...
showkey --scancodes
and
sudo evtest
doesn't work on my system.
xev
shows only the keycodes.
How do I display the scancodes of the keys?