Blinking screen in 1080p movies

when I am playing a movie on the rpi2 suddendly the screen blinks (the video and audio stops one second and continue) It happens several times while the playing. It only happens in movies,not in TV shows. I believe that it could be by movies resolution (1080p). I read in some pages that solution could be change config_hdmi_boost to 7 but nothing changes.

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Might be one of these: http://kodi.wiki/view/Raspberry_Pi_FAQ#Audio_or_video_dropouts_on_HDMI