Can't turn screen on after long inactivity

Progetto:Trisquel
Versione:8.0
Componente:Gnome
Categoria:segnalazione di bug
Priorità:critical
Assigned:llz
Stato:active
Descrizione

After a long period of inactivity (after screensaver turns off and display turns off) like 1 hour, I can't wake him up with IO devices (mouse / keyboard). I have to restart the machine.