Block multiple keypress events that has same timestamp

I have a faulty keyboard that will fire additional keys when i press a single key. for example, when i click letter "D" on keyboard it will send "D5" $xev -event keyboard KeyPress event, serial 28, synthetic NO, window 0x3c00001, root 0x929, subw 0x0, time 7185644, (351,334), root:(2087,693), state 0x10, keycode 40 (keysym 0x64, d), same_screen YES, XLookupString gives 1 bytes: (64) "d" XmbLookupString gives 1 bytes: (64) "d" XFilterEvent returns: False KeyPress event, serial 28, synthetic NO, window 0x3c00001, root 0x929, subw 0x0, time 7185644, (351,334), root:(2087,693), state 0x10, keycode 84 (keysym 0xffb5, KP_5), same_screen YES, XLookupString gives 1 bytes: (35) "5" XmbLookupString gives 1 bytes: (35) "5" XFilterEvent returns: False KeyRelease event, serial 28, synthetic NO, window 0x3c00001, root 0x929, subw 0x0, time 7185716, (351,334), root:(2087,693), state 0x10, keycode 40 (keysym 0x64, d), same_screen YES, XLookupString gives 1 bytes: (64) "d" XFilterEvent returns: False KeyRelease event, serial 28, synthetic NO, window 0x3c00001, root 0x929, subw 0x0, time 7185716, (351,334), root:(2087,693), state 0x10, keycode 84 (keysym 0xffb5, KP_5), same_screen YES, XLookupString gives 1 bytes: (35) "5" XFilterEvent returns: False notice that both keypress events have the same timestamp. my question is, is there a way to block the second keyPress event if it has the same timestamp as the previous keyPress event? or is there any other way to block this second input?