Ctrl+S

x TTY driver takes Ctrl+S.
  Nothing after TTY driver receives Ctrl+S.

Route
  1  Remapper      v  none detected
  2  Compositor    -  not inspected
  3  Terminal      -  not inspected
  4  TTY driver    x  terminal flow control (IXON); Ctrl+S matches VSTOP
  5  Input method  -  not reached
  6  Multiplexer   -  not reached
  7  Shell         -  not reached

More  whykey ctrl+s -v
