Preventing gnome-power-manager from turning monitor off

[Artyom Smirnov <smirnoffjr gmail com>]

Hi.

I'm using mplayer in GNOME and for preventing starting screensaver
using 'gnome-screensaver-command -p' (actually in ~/.mplayer/config:
heartbeat-cmd="gnome-screensaver-command -p"). All ok with
screensaver, but g-p-m ignoring this poking and puts display to sleep
after some time. This is normal behaviour? If yes, how can I prevent
monitor from sleeping?

Thanks.
--
Artyom