My screen turns off when I watch movies on YouTube [duplicate]

Posted by Radu Radeanu on Ask Ubuntu See other posts from Ask Ubuntu or by Radu Radeanu
Published on 2013-05-28T12:28:40Z Indexed on 2013/06/26 22:30 UTC
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13.04

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screen

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youtube

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gnome-screensaver

This question already has an answer here:

How to prevent my screen from dimming when watching YouTube? 4 answers

When I use VLC or other media player, I can watch the movie until the end without touching the PC. If I watch a movie on YouTube using Chromium or Firefox my screen will turn off as is set in System Settings > Brightness and Lock. How to prevent this without to change the settings in Brightness and Lock.

Edit: My Ubuntu 13.04 with Gnome 3.6.3.1 uses gnome-screensaver (I didn't installed any other screensaver).

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