My trusty laptop has the same problem (bug 1378177 was duped here) -- just a note that 'xset dpms 300 9999 9999' allows my screen to turn off properly after five minutes.
My trusty laptop has the same problem (bug 1378177 was duped here) -- just a note that 'xset dpms 300 9999 9999' allows my screen to turn off properly after five minutes.