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Screen refresh rate to slow after 11.10 upgrade - how to change

Mark Brady
Mark Brady asked
Last Modified: 2013-12-15
My System info:
Memory/Ram       3.6 Gib
Processor            Intel® Core™ i7-2635QM CPU @ 2.00GHz × 8
Graphics              VESA: SEYMOUR
OS Type              32-bit
Disk                     162.5 GB


I am running 11.10 on my Macbook Pro which I installed and ran with no problems off a setup CD I downloaded. When using 11.04 there were no major problems and once I configured a few pieces of hardware things were looking and working great.

After a software upgrade to 11.10, my screen refresh rate slowed down. When windows resize (web browsers) I have to drag the window around the screen to paint over the original window size and it is very annoying.

Please help me set the refresh rate back to what it ius supposed to be (I'm not sure what that is but I am assuming that now it is way down at around 50 Hertz or there-abouts. I'm not sure how to find it. I think it should be more like around 75 Hertz or somewhere close but I don't know where to find the optimum refresh rate for this mackbook pro early 2011 model 15 inch.

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