According to xev, there's activity after all four presses, but only the second and fourth have keypress events. The timeline is
-------------first press--------------get notification------------------ FocusOut event, serial 42, synthetic NO, window 0x6000001, mode NotifyGrab, detail NotifyAncestor FocusIn event, serial 42, synthetic NO, window 0x6000001, mode NotifyUngrab, detail NotifyAncestor KeymapNotify event, serial 42, 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 -----------second press------------touchpad still disabled----------------- KeyPress event, serial 42, synthetic NO, window 0x6000001, root 0x9b, subw 0x0, time 57753504, (20,-12), root:(23,604), state 0x0, keycode 201 (keysym 0x0, NoSymbol), same_screen YES, XLookupString gives 0 bytes: XmbLookupString gives 0 bytes: XFilterEvent returns: False KeyRelease event, serial 42, synthetic NO, window 0x6000001, root 0x9b, subw 0x0, time 57753516, (20,-12), root:(23,604), state 0x0, keycode 201 (keysym 0x0, NoSymbol), same_screen YES, XLookupString gives 0 bytes: XFilterEvent returns: False -------third press---------------get notification------------------------ FocusOut event, serial 42, synthetic NO, window 0x6000001, mode NotifyGrab, detail NotifyAncestor FocusIn event, serial 42, synthetic NO, window 0x6000001, mode NotifyUngrab, detail NotifyAncestor KeymapNotify event, serial 42, 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 MappingNotify event, serial 42, synthetic NO, window 0x0, request MappingKeyboard, first_keycode 8, count 248 MappingNotify event, serial 43, synthetic NO, window 0x0, request MappingKeyboard, first_keycode 8, count 248 MappingNotify event, serial 44, synthetic NO, window 0x0, request MappingKeyboard, first_keycode 8, count 248 MappingNotify event, serial 45, synthetic NO, window 0x0, request MappingKeyboard, first_keycode 8, count 248 MappingNotify event, serial 46, synthetic NO, window 0x0, request MappingKeyboard, first_keycode 8, count 248 MappingNotify event, serial 47, synthetic NO, window 0x0, request MappingKeyboard, first_keycode 8, count 248 -----------fourth press-----------cycle ends, can use touchpad now----------- KeyPress event, serial 48, synthetic NO, window 0x6000001, root 0x9b, subw 0x0, time 57755319, (20,-12), root:(23,604), state 0x0, keycode 201 (keysym 0x0, NoSymbol), same_screen YES, XLookupString gives 0 bytes: XmbLookupString gives 0 bytes: XFilterEvent returns: False KeyRelease event, serial 48, synthetic NO, window 0x6000001, root 0x9b, subw 0x0, time 57755331, (20,-12), root:(23,604), state 0x0, keycode 201 (keysym 0x0, NoSymbol), same_screen YES, XLookupString gives 0 bytes: XFilterEvent returns: False -- Touchpad disable button doesn't behave properly https://bugs.launchpad.net/bugs/582005 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs