On Thursday 16 July 2015 21:25:29 Mike Castle wrote: > might be useful if the above doesn't work out for you. for a session, however long it be, though not permanently: $ xset -dpms <enter> Or you may have to do: # xset -dpms <enter> That works until you next reboot. In my experience turning the screensaver off doesn't seem to work - it seems to be something else. But I shall immediately try Brian's recipe myself! Lisi