Comment 25 for bug 1720219

Also, it is not a hardware issue, it works fine in windows on the same computer when testing for keyboard events.

The following is what I get from xev:

---

KeyPress event, serial 28, synthetic NO, window 0x2200001,
    root 0x270, subw 0x0, time 354142, (133,154), root:(228,239),
    state 0x0, keycode 221 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes:
    XmbLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyRelease event, serial 28, synthetic NO, window 0x2200001,
    root 0x270, subw 0x0, time 354142, (133,154), root:(228,239),
    state 0x0, keycode 221 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyPress event, serial 28, synthetic NO, window 0x2200001,
    root 0x270, subw 0x0, time 354901, (762,346), root:(857,431),
    state 0x0, keycode 221 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes:
    XmbLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyRelease event, serial 28, synthetic NO, window 0x2200001,
    root 0x270, subw 0x0, time 354901, (762,346), root:(857,431),
    state 0x0, keycode 221 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

---

And it goes on endlessly.