https://faq.i3wm.org/questions/Frequently asked questions and answers about the i3 window managerenCopyright i3, 2012Wed, 31 Dec 2014 02:30:39 +0000https://faq.i3wm.org/question/5284/i3lock-issue/I made a little C program to act as shutdown/reboot/lock menu (and to have fun) that works perfectly when called in a running term emulator, but the lock function does not when launched like this: "urxvt -e program". Any idea why? #include <ncurses.h> #include <string.h> #include <unistd.h> int main() { initscr(); keypad(stdscr, TRUE); noecho(); curs_set(0); int i, choice = 0, c = 0; const char *options[]= { "Poweroff", "Reboot", "Lock", 0 }; for(i = 0; options[i]; ++i) mvaddstr(i, 0, options[i]); move(0, 0); do { mvchgat(choice, 0, strlen(options[choice]), A_NORMAL, 0, NULL); if(c == KEY_DOWN && choice < 2) ++choice; else if(c == KEY_UP && choice) --choice; mvchgat(choice, 0, strlen(options[choice]), A_REVERSE, 0, NULL); } while((c = getch()) != '\n'); switch(choice) { case 0: system("mpd --kill && systemctl poweroff"); case 1: system("mpd --kill && systemctl reboot"); case 2: system("/home/user/Scripts/lock.sh"); } curs_set(1); endwin(); return 0; } It "works" if I don't close the program, e.g. add something like a getch() before the return. i don't understand why since system and i3lock fork. Content of lock.sh if it can help: #!/bin/bash IMAGE=/tmp/lockpic.png import -window root $IMAGE convert $IMAGE -blur '0x5' $IMAGE i3lock -i $IMAGE Wed, 31 Dec 2014 02:30:39 +0000https://faq.i3wm.org/question/5284/i3lock-issue/