If you reassign some different key to the same action (I tried next track and previous track) everything will work ok.
So I tried to set a different task to these two keys (volume up and volume down) and the result is that kde configuration window and xev ignore this key (showing no message at all).
If you reassign some different key to the same action (I tried next track and previous track) everything will work ok.
So I tried to set a different task to these two keys (volume up and volume down) and the result is that kde configuration window and xev ignore this key (showing no message at all).