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OS X Lion freezes at login screen + App Store is slow

I installed OS X Lion in my Mac Book Pro (Mid 2010) and have two issues:


- Login screen freezes sometimes. "Colored rotating disc" appears, text cursor stops blinking and I can not do anything; I can not click anywere, I can not enter my user name/password... Only option is to hard-reboot the computer, which is not a pleasant thing to do.


- App Store is very slow. It takes about 30 seconds of "rotating colored disc thinking" every time a page has to be loaded!


I first installed OS X Lion via Mac App Store and login screen freezes happened about 50% or more of the times I turned on the computer! Also random freezes happened during computer work. Computer was almost unusable under these circumstances, so I reinstalled OS X Lion by doing a clean install (from DVD). After this clean install everithing seemed to run smoothly at first, but now login screen freezes happen again and Mac App Store is very slow as I explained.


I did not have any of these problems with Snow Leopard. I have checked permissions, and I have not installed too many apps yet.


Anybody with these same issues? Any idea of a solution? Somebody at Apple working to solve these problems?


Thanks!

MacBook Pro, Mac OS X (10.7)

Posted on Jul 25, 2011 3:47 AM

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1,019 replies

Jul 26, 2011 1:06 PM in response to maharajan

I was told to try disabling Automatic graphics switching, and that would stop the freezing at the login screen. I haven't tested it yet. On laptops this will always use the better graphics card though, so battery life will decrease (by how much I don't know)


System Preferences > Energy Saver > (uncheck) Automatic Graphics Switching (it's at the top of the settings pane)


I'll post my results after testing a few reboots when I get home.

Jul 27, 2011 8:04 AM in response to jmacbookpro

I'm having the same issue with the App Store on a 27" iMac i7 with 250GB SSD and 8GB RAM (Mid 2010). It takes much more time to download the start screen in Lion than it did in Snow Leopard and I often see the BBOD (Beach Ball of Death) or as some refers to as the "Colored rotating disc".


My ISP speed is 100 Mbit so that should not be the problem.

OS X Lion freezes at login screen + App Store is slow

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