xev wasn't available at the time, but yes, dit does something:
FocusOut event, serial 26, synthetic NO, window 0x3000001, mode NotifyGrab, detail NotifyAncestor
FocusOut event, serial 26, synthetic NO, window 0x3000001, mode NotifyUngrab, detail NotifyPointer
FocusIn event, serial 26, synthetic NO, window 0x3000001, mode NotifyUngrab, detail NotifyAncestor
KeymapNotify event, serial 26, synthetic NO, window 0x0, keys: 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
xev wasn't available at the time, but yes, dit does something:
FocusOut event, serial 26, synthetic NO, window 0x3000001,
mode NotifyGrab, detail NotifyAncestor
FocusOut event, serial 26, synthetic NO, window 0x3000001,
mode NotifyUngrab, detail NotifyPointer
FocusIn event, serial 26, synthetic NO, window 0x3000001,
mode NotifyUngrab, detail NotifyAncestor
KeymapNotify event, serial 26, synthetic NO, window 0x0,
keys: 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0