Comment 1 for bug 1393767

DPMS sleep/standby/off time is not the same as blank time and xfpm1.2 didn't handle blanking at all. We added that in 1.4, but that came out too late for Trusty. Backporting those features is not really an option, even though trusty will be around for quite a bit (simply because our workforce is too limited for that – feel free to help out and propose patches).