Be sure to call 1800SAMSUNG and see if they added this feature.
I 've got recently 24" Samsung SyncMaster TA550 monitor/tv
If I am using VGA cable to connect to my Latitude 6510, the monitor goes i
n/from standby when the Laptop is powered off/on.
If I use DVI2HDMI cable to connect to HDMI1/DVI port of the monitor, the picture is OK if I set the name of the port to PC or PC DVI, but the monitor does no go in standby anymore.
If switch off/standby the computer it just says "NO SIGNAL" and doesn't power off (or powers off after XX minutes (min 15) whatever the general setting for powerof is set).
When I switch the computer back on after the monitor was powered itself off, it doesn't power on automatically.