Comment 3 for bug 1790100

I have the same problem on ubuntu 18.10 on gnome terminal (the problem appeared after upgrading from an 17.04ubuntu).

*xev gnome terminal output (in gnome terminal ^ doesn't work)*

KeyPress event, serial 37, synthetic NO, window 0x2c00001,
    root 0x2ac, subw 0x0, time 12476575, (1386,-67), root:(1426,349),
    state 0x11, keycode 21 (keysym 0x5e, asciicircum), same_screen YES,
    XLookupString gives 1 bytes: (5e) "^"
    XmbLookupString gives 1 bytes: (5e) "^"
    XFilterEvent returns: False

KeyRelease event, serial 37, synthetic NO, window 0x2c00001,
    root 0x2ac, subw 0x0, time 12476723, (1386,-67), root:(1426,349),
    state 0x11, keycode 21 (keysym 0x5e, asciicircum), same_screen YES,
    XLookupString gives 1 bytes: (5e) "^"
    XFilterEvent returns: False

*xev terminator output (in terminator ^ works perfectly)*

KeyPress event, serial 37, synthetic NO, window 0x2a00001,
    root 0x2ac, subw 0x0, time 12700278, (680,1395), root:(756,1613),
    state 0x11, keycode 21 (keysym 0x5e, asciicircum), same_screen YES,
    XLookupString gives 1 bytes: (5e) "^"
    XmbLookupString gives 1 bytes: (5e) "^"
    XFilterEvent returns: False

KeyRelease event, serial 37, synthetic NO, window 0x2a00001,
    root 0x2ac, subw 0x0, time 12700465, (680,1395), root:(756,1613),
    state 0x11, keycode 21 (keysym 0x5e, asciicircum), same_screen YES,
    XLookupString gives 1 bytes: (5e) "^"
    XFilterEvent returns: False