https://bugs.winehq.org/show_bug.cgi?id=54141
--- Comment #7 from Eric Pouech eric.pouech@gmail.com --- thanks for the log. it doesn't seem it's wine's console which terminates but the underlying terminal emulator
Ctrl-4 is read as character 'c', and likely since ctrl key is down, it's interpreted as ctrl-c (but not wine's conhost)...
what terminal emulator are you using ? and from a unix shell, is any character displayed when hitting ctrl-4 ?