Xubuntu question - keyboard falls asleep?

OK well I finally got rid of it by installing synaptic package manager and using that to remove it. I still don't understand why it has only given me back far less disk space than the original installed asked for?

I've uninstalled both screensavers, one for xfce and one for ubuntu and the screen still locks after i leave the computer for 10 minutes, how do I find out what is doing this?

I think its lightlocker doing it.

I reinstalled screensavers and now they dont go on lol

Edit after some investigation it seems the power manager is locking the screen and turning off the music player.

I wonder if there is a power manager that will turn off the monitor but not the music player?