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I found a similar question here, but it's related to the laptop preparing for sleep. My settings while connected to power are:

  • Screensaver after 20 minutes
  • Turn screen off after 1 hour

I assume that my laptop won't sleep until after the screen has turned off - is this accurate? If so, any other indications as to why my fans go into hyper-drive when the screensaver turns on?

ctote
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1 Answers1

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My fanspeed also was incredibly high when on OSX stock screensaver. Some virus scans and resetting of the MacBooks PRAM and VRAM later, I did a check and graphed the cpu usage. It was indeed the screensaver process which kept cpu at 100%.
It was set to a transition of pictures in a folder. Apparently the fade and float effect is too much for the mac. Switch to a blank screen with a clock shown. Fan speed went down to non audible since then and CPU is as low as can be during screensaver now.

atripes
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