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Had removed Gnome-screensaver and uses xscreensaver, but Caffeine doesn't seems to work when watching movie using SMPlayer even added both SMPlayer and MPlayer into the activation list.

Anyone got any ideas?

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up vote 2 down vote accepted

It's a bug (an especially annoying one since 11.10 uses GNOME 3 which has no screensavers). Thankfully someone's working on fixing it:

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thank you for the info – d4v1dv00 Nov 1 '11 at 2:37
This now seems to be fixed in the newest version, available via the Caffeine PPA: – Aibara Iduas Nov 3 '11 at 18:52

Marcar Iniciar Caffeine al inciar seción

Matar definitivamente el demonio de gnome-secreensave, dejamos sin permiso de ejecución

sudo chmod -x /usr/bin/gnome-screensaver

Y reiniciamos la PC

Translation (via Google translate):

Take Caffeine out of startup (translation unclear here)

I would definitely kill the daemon gnome-screensaver and leave it without execute permission:

sudo chmod -x /usr/bin/gnome-screensaver

Then reboot the PC.

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