Some numpad keys not working

[Aeling]

I only recently started noticing this, and it may or may not be spreading (it seems like it is, but it could be my imagination). As of right now, the 2,4,5, and 6 keys on my numpad don't work. They show up as events in the terminal after running xev, but I don't know anything about the output. I can tell that the output generated from these keys' events is very different from that generated by working keys (by working, I mean they generate numbers or arrow key events depending on whether numlock is on).

Xev output for 2 (broken):


FocusOut event, serial 31, synthetic NO, window 0x4800001,
mode NotifyGrab, detail NotifyAncestor

FocusOut event, serial 31, synthetic NO, window 0x4800001,
mode NotifyUngrab, detail NotifyPointer

FocusIn event, serial 31, synthetic NO, window 0x4800001,
mode NotifyUngrab, detail NotifyAncestor

KeymapNotify event, serial 31, 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 output for the 7 numkey (working):


KeyPress event, serial 28, synthetic NO, window 0x4800001,
root 0x87, subw 0x0, time 5325749, (520,-159), root:(526,352),
state 0x10, keycode 79 (keysym 0xffb7, KP_7), same_screen YES,
XLookupString gives 1 bytes: (37) "7"
XmbLookupString gives 1 bytes: (37) "7"
XFilterEvent returns: False

KeyRelease event, serial 31, synthetic NO, window 0x4800001,
root 0x87, subw 0x0, time 5325794, (520,-159), root:(526,352),
state 0x10, keycode 79 (keysym 0xffb7, KP_7), same_screen YES,
XLookupString gives 1 bytes: (37) "7"
XFilterEvent returns: False


My hardware is an MSI GX710 laptop. I'm more than happy to provide any additional info, given a specific request - I'm pretty new to Ubuntu.

Thanks!