So today out of the blue my Super key stopped working. I looked into xev and it shows that upon pressing Super_L (keycode 133) both Super_L and F7 (keycode 73) were being pressed. This also registers in apps such as Application Shortcuts, wherein by pressing Super key, the application is bound to Super+F7. xev output:
KeyPress event, serial 33, synthetic NO, window 0x6000001,
root 0x938, subw 0x0, time 3120543, (145,109), root:(1812,862),
state 0x10, keycode 133 (keysym 0xff20, Multi_key), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
KeyPress event, serial 33, synthetic NO, window 0x6000001,
root 0x938, subw 0x0, time 3120544, (145,109), root:(1812,862),
state 0x10, keycode 73 (keysym 0xffc4, F7), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
KeyRelease event, serial 33, synthetic NO, window 0x6000001,
root 0x938, subw 0x0, time 3120548, (145,109), root:(1812,862),
state 0x10, keycode 73 (keysym 0xffc4, F7), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
KeyRelease event, serial 33, synthetic NO, window 0x6000001,
root 0x938, subw 0x0, time 3120722, (145,109), root:(1812,862),
state 0x10, keycode 133 (keysym 0xff20, Multi_key), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False