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My MacBoook Pro freezes at log in screen...

Hi,


Recently, I disabled automatic login in OSX Lion. However, I have noticed that in doing so my MacBook sometimes will freeze at the log in screen (with a spinning beach ball) forcing me to force restart. Checking in console, it seems that the issue is somehow related to the GPU. Here are the console messages.


1/13/12 12:06:33.246 AM sandboxd: ([108]) DumpGPURestart(108) deny file-write-create /Library/Application Support/SubmitDiagInfo

1/13/12 12:06:33.288 AM sandboxd: ([108]) DumpGPURestart(108) deny ipc-posix-shm apple.shm.notification_center

1/13/12 12:06:33.289 AM sandboxd: ([108]) DumpGPURestart(108) deny ipc-posix-shm apple.shm.notification_center

1/13/12 12:06:33.290 AM sandboxd: ([108]) DumpGPURestart(108) deny ipc-posix-shm apple.shm.notification_center

1/13/12 12:06:33.291 AM sandboxd: ([108]) DumpGPURestart(108) deny ipc-posix-shm apple.shm.notification_center

1/13/12 12:06:33.304 AM sandboxd: ([108]) DumpGPURestart(108) deny ipc-posix-shm apple.shm.notification_center

1/13/12 12:06:33.322 AM sandboxd: ([108]) DumpGPURestart(108) deny ipc-posix-shm apple.shm.notification_center

1/13/12 12:06:33.323 AM sandboxd: ([108]) DumpGPURestart(108) deny network-outbound /private/var/run/mDNSResponder

1/13/12 12:06:33.324 AM sandboxd: ([108]) DumpGPURestart(108) deny file-read-data /private/etc/hosts

1/13/12 12:06:33.325 AM sandboxd: ([108]) DumpGPURestart(108) deny file-read-data /private/etc/hosts

1/13/12 12:06:33.343 AM sandboxd: ([108]) DumpGPURestart(108) deny ipc-posix-shm apple.shm.notification_center

1/13/12 12:06:33.345 AM sandboxd: ([108]) DumpGPURestart(108) deny ipc-posix-shm apple.shm.notification_center

1/15/12 8:34:16.596 PM sandboxd: ([128]) DumpGPURestart(128) deny file-write-create /Library/Application Support/SubmitDiagInfo

1/15/12 8:34:16.638 PM sandboxd: ([128]) DumpGPURestart(128) deny ipc-posix-shm apple.shm.notification_center

1/15/12 8:34:16.645 PM sandboxd: ([128]) DumpGPURestart(128) deny ipc-posix-shm apple.shm.notification_center

1/15/12 8:34:16.647 PM sandboxd: ([128]) DumpGPURestart(128) deny ipc-posix-shm apple.shm.notification_center

1/15/12 8:34:16.648 PM sandboxd: ([128]) DumpGPURestart(128) deny ipc-posix-shm apple.shm.notification_center

1/15/12 8:34:16.649 PM sandboxd: ([128]) DumpGPURestart(128) deny ipc-posix-shm apple.shm.notification_center

1/15/12 8:34:16.665 PM sandboxd: ([128]) DumpGPURestart(128) deny ipc-posix-shm apple.shm.notification_center

1/15/12 8:34:16.667 PM sandboxd: ([128]) DumpGPURestart(128) deny network-outbound /private/var/run/mDNSResponder

1/15/12 8:34:16.667 PM sandboxd: ([128]) DumpGPURestart(128) deny file-read-data /private/etc/hosts

1/15/12 8:34:16.668 PM sandboxd: ([128]) DumpGPURestart(128) deny file-read-data /private/etc/hosts

1/15/12 8:34:16.685 PM sandboxd: ([128]) DumpGPURestart(128) deny ipc-posix-shm apple.shm.notification_center

1/15/12 8:34:16.686 PM sandboxd: ([128]) DumpGPURestart(128) deny ipc-posix-shm apple.shm.notification_center

1/15/12 9:09:26.511 PM sandboxd: ([333]) DumpGPURestart(333) deny file-write-create /Library/Application Support/SubmitDiagInfo

1/15/12 9:09:26.534 PM sandboxd: ([333]) DumpGPURestart(333) deny ipc-posix-shm apple.shm.notification_center

1/15/12 9:09:26.536 PM sandboxd: ([333]) DumpGPURestart(333) deny ipc-posix-shm apple.shm.notification_center

1/15/12 9:09:26.537 PM sandboxd: ([333]) DumpGPURestart(333) deny ipc-posix-shm apple.shm.notification_center

1/15/12 9:09:26.539 PM sandboxd: ([333]) DumpGPURestart(333) deny ipc-posix-shm apple.shm.notification_center

1/15/12 9:09:26.541 PM sandboxd: ([333]) DumpGPURestart(333) deny ipc-posix-shm apple.shm.notification_center

1/15/12 9:11:30.625 PM com.apple.stackshot: Running fs_usage, spindump and top



The thing is that I do not know what could be causing this issue with the GPU. It has happened 3 times already since disabling auto log in, and at the same place. I know that my MacBook Pro model is under an Apple service program due to some being shipped with faulty logic boards (see here). But, before going through the hurdle of visiting my Apple Store and get my computer tested for a possible failure, I would like to know what other possibilities can cause my issue.


Thanks for any assistance that can be provided on this matter. I honestly need some assistance with this issue...😕

2.53GHz Core i5 MacBook Pro 15, Mac OS X (10.7.2), 500GB HD @7200, 4GB 1067MHz DDR3 RAM, Intel HD + Nvidia 330m 256

Posted on Jan 16, 2012 6:38 AM

Reply
9 replies

Jan 17, 2012 3:19 PM in response to vea1083

Bump & Update. I personally filed a bug to Apple Developer and I really hope that they come out with a solution for this in the future. Now I would like to know if any other users have experienced this log in screen freeze issues in their 2010 MacBook Pro. It seems that the problem has to do with automatic graphics switching.


I encourage everyone that suffers from this issue to contact Apple directly via:

http://www.apple.com/macosx/feedback


You can also create a developer account (is free, as long you don't belong to the Mac or iOS developer program) to file bug reports via Bug Reporter at:

http://developer.apple.com/programs/start/standard/create.php


or... contact executives at Apple (I will not put their e-mail addresses here, but they can be easily found with a Google Search 😉).


Let's hope Apple keep improving OSX Lion with the upcoming software patches.

Jan 20, 2012 3:16 PM in response to vea1083

Thought, I could give an update to all the silent people here at the Apple Forums. I performed a clean install of Lion (5th) and set up the computer to ask for a password at the log in screen for the start. To my surprise the log in screen issue occurred again. This means that this problem is software driven and has to do with the implementation of automatic graphics switching that has been added to OSX Lion. I will be waiting now for Mac OS X 10.7.3 to continue testing, perhaps I will download the full OS installer to test my luck and see what happens.


I do hope that Apple addresses this in the future. I want that anyone who is suffering from this issue to open Console and check for the following string "DumpGPURestart". If its present it can help Apple to understand that this issue is common and their automatic graphics switching implementation in OSX Lion *****.

Mar 12, 2012 5:39 PM in response to scott88

Hi Scott88,


Do you by any chance own an nvidia equipped Mac? I have the mid 2010 MacBook Pro with an nvidia 330m graphics card. As for me, I could not longer hear the grahics related issues with OSX Lion so I ended up returning to Snow Leopard. I am much happier now, my computer has been running fine since downgrading.


I filed a bug report at Apple and they as expected "do not have any information on the issue so far", which off course is their way of saying we won't work on this until you can replicate it. The thing is that there are several YouTube videos that show this issue and the only solution so far is to disable the automatic graphics switching function to force he discrete GPU on, but other than that the latter is just a stop-gap measure.


Hope this helps and believe me, OSX Lion is the worst OS to be released in Apple's history. It's highly unstable and problematic. Let's hope Apple amends this with Mountain Lion.

Mar 12, 2012 6:29 PM in response to vea1083

As a matter of fact, I do have a "NVIDIA GeForce GT 330M" apparently, on a 15" mid-2010 model. I can't go back to SL (I am already hooked on too many L features, and develop for iPads, so I need to be current). I will however try your suggestion to force the discrete GPU on though; really appreciate that suggestion!

My MacBoook Pro freezes at log in screen...

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