1 2 3 4 5 Previous Next 183 Replies Latest reply: Nov 26, 2013 10:33 PM by Smudge Go to original post Branched to a new discussion.
  • 30. Re: Mountain Lion Screen Freeze
    Humps_s Level 1 Level 1 (0 points)

    Since updating to 10.8.1 it has made no difference!

     

    Come on Apple.... please sort it out for us MBP users!!

  • 31. Re: Mountain Lion Screen Freeze
    Wemyss4 Level 1 Level 1 (0 points)

    Getting the same problem with a new retina MB Pro, running 10.7.4. Log repreatedly shows something like the following, with a hang in MAIN graphics engine:

     

    Aug 27 17:06:41 .. kernel[0]: timestamps = 0x4ae7fb1

    Aug 27 17:06:41 .. kernel[0]: Semaphore register values:

    Aug 27 17:06:41 .. kernel[0]: VRSYNC: (0x12044) = 0x4ae7fb1

    Aug 27 17:06:41 .. kernel[0]: BRSYNC: (0x22040) = 0x0

    Aug 27 17:06:41 .. kernel[0]: RVSYNC: (0x 2040) = 0x0

    Aug 27 17:06:41 .. kernel[0]: BVSYNC: (0x22044) = 0x0

    Aug 27 17:06:41 .. kernel[0]: RBSYNC: (0x 2044) = 0x0

    Aug 27 17:06:41 .. kernel[0]: VBSYNC: (0x12040) = 0x0

    Aug 27 17:06:46 .. kernel[0]: stampWait: Overflowed checking for stamp 0x4ae7fb4 on MAIN ring: called from waiting for blt buffer (3D blt)

    Aug 27 17:06:46 .. kernel[0]: timestamp = 0x4ae7fb1

    Aug 27 17:06:46 .. kernel[0]: ****  Debug info for *possible* hang in MAIN graphics engine  ****

    Aug 27 17:06:46 .. kernel[0]: ring head    = 0x71c0df8c, wrap count = 910

    Aug 27 17:06:46 .. kernel[0]: ring tail    = 0x000001d8

    Aug 27 17:06:46 .. kernel[0]: ring control = 0x0000f001   enabled, auto report disabled, not waiting, semaphore not waiting, length = 0x010 4KB pages

     

    Then, after little while, switches to hang in BLT graphics engine:

     

    Aug 27 17:07:36 .. kernel[0]: timestamps = 0x4ae7fb1

    Aug 27 17:07:36 .. kernel[0]: Semaphore register values:

    Aug 27 17:07:36 .. kernel[0]: VRSYNC: (0x12044) = 0x4ae7fb1

    Aug 27 17:07:36 .. kernel[0]: BRSYNC: (0x22040) = 0x0

    Aug 27 17:07:36 .. kernel[0]: RVSYNC: (0x 2040) = 0x0

    Aug 27 17:07:36 .. kernel[0]: BVSYNC: (0x22044) = 0x0

    Aug 27 17:07:36 .. kernel[0]: RBSYNC: (0x 2044) = 0x0

    Aug 27 17:07:36 .. kernel[0]: VBSYNC: (0x12040) = 0x0

    Aug 27 17:07:41 .. kernel[0]: stampWait: Overflowed checking for stamp 0x206355 on BLT ring: called from wait for blt buffer (2D blt)

    Aug 27 17:07:41 .. kernel[0]: timestamp = 0x206354

    Aug 27 17:07:41 .. kernel[0]: ****  Debug info for *possible* hang in BLT graphics engine  ****

    Aug 27 17:07:41 .. kernel[0]: ring head    = 0x0080f350, wrap count = 4

    Aug 27 17:07:41 .. kernel[0]: ring tail    = 0x00002f38

    Aug 27 17:07:41 .. kernel[0]: ring control = 0x0000f401   enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

  • 32. Re: Mountain Lion Screen Freeze
    Anthony Tomasino Level 2 Level 2 (360 points)

    I know it's a stretch, but do any of you possibly have a machine with a defective GPU? A while ago there was an issue with Nvidia GPUs causing screen tearing or no video. I had one of these machines and I experienced what you guys are, simply my screen freezing.

     

    MacBook Pro 15-inch and 17-inch models with NVIDIA GeForce 8600M GT graphics processors

     

    • MacBook Pro (17-Inch, 2.4GHz)
    • MacBook Pro (15-Inch, 2.4/2.2GHz)
    • MacBook Pro (Early 2008)

     

    Do you have one of these qualifying machines?

     

    If not, does the issue still occur if you create a new user and log in on there? I know I asked that earlier but I think only one guy replied.

     

    Also, are you using Chrome by chance?

  • 33. Re: Mountain Lion Screen Freeze
    Wemyss4 Level 1 Level 1 (0 points)

    The retina MB Pro has Intel HD graphics 4000, and NVIDIA GT650M. Unlike the others, I'm still running Lion. Not using Chrome (my crashes have all been while scrolling in Safari). I am seeing a lot of core graphics error log messages from Safari of the form:

     

    8/27/12 5:59:57.167 PM [0x0-0x8008].com.apple.Safari: Aug 27 17:59:57 ...local WebProcess[248] <Error>: CGContextSetLineDash: invalid dash array: at least one element must be non-zero.

     

    I had one of the 15 inch MB Pros with the defective GT8600M GPUs, and I don't remember it being this way -- it consistently froze when it was plugged into a projector via a long cable. This is very random, and doesn't seem to be affected by external monitors being attached.

  • 34. Re: Mountain Lion Screen Freeze
    ckocho Level 1 Level 1 (0 points)

    Mine seem to have been happening once a week but now it's happened both yesterday and today. For me it has only happened since getting Mountain Lion.

     

    I'm on a 27" iMac - late 2009.

     

    With mine, the cursor moves (doesn't change icon though - eg I was stuck with a type cursor) and my music still plays in the background.

     

    So frustrating especially seeing as though its my work computer. Doesn't happen on my 13" MBP with ML.

  • 35. Re: Mountain Lion Screen Freeze
    Garrett M Level 1 Level 1 (0 points)

    Im having the same problem.. Could apple fix this in an update?

  • 36. Re: Mountain Lion Screen Freeze
    andres.luna Level 1 Level 1 (0 points)

    hi again Apple Experts..I was just reading a PDF document, no more, and the problem appeared again... again my logs...

     

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: stampWait: Overflowed checking for stamp 0x1760f4 on MAIN ring: called from

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: timestamp = 0x1760f2

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: ****  Debug info for *possible* hang in MAIN graphics engine  ****

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: ring head    = 0xd9c0ed58, wrap count = 1742

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: ring tail    = 0x0000f320

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: ring control = 0x0000f401   enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: timestamps = 0x1760f2

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: Semaphore register values:

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: VRSYNC: (0x12044) = 0x1760f2

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: BRSYNC: (0x22040) = 0x0

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: RVSYNC: (0x 2040) = 0x0

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: BVSYNC: (0x22044) = 0x0

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: RBSYNC: (0x 2044) = 0x0

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: VBSYNC: (0x12040) = 0x0

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: trying to clear semaphore wait on MAIN ring

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: After attempt to clear semaphore wait = 0x0000f401 still waiting

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: stampWait: Overflowed checking for stamp 0x176104 on MAIN ring: called from

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: timestamp = 0x1760f3

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: ****  Debug info for *possible* hang in MAIN graphics engine  ****

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: ring head    = 0xd9c0eda8, wrap count = 1742

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: ring tail    = 0x0000f320

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: ring control = 0x0000f401   enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: timestamps = 0x1760f3

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: Semaphore register values:

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: VRSYNC: (0x12044) = 0x1760f3

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: BRSYNC: (0x22040) = 0x1

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: RVSYNC: (0x 2040) = 0x0

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: BVSYNC: (0x22044) = 0x0

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: RBSYNC: (0x 2044) = 0x0

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: VBSYNC: (0x12040) = 0x0

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: trying to clear semaphore wait on MAIN ring

    Aug 28 01:26:14 MacBook-Pro-de-Andres-2 kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: stampWait: Overflowed checking for stamp 0x176110 on MAIN ring: called from

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: timestamp = 0x1760fc

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: ****  Debug info for *possible* hang in MAIN graphics engine  ****

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: ring head    = 0xd9c0f140, wrap count = 1742

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: ring tail    = 0x000009d0

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: ring control = 0x0000f401   enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: timestamps = 0x1760fc

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: Semaphore register values:

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: VRSYNC: (0x12044) = 0x1760fc

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: BRSYNC: (0x22040) = 0x1

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: RVSYNC: (0x 2040) = 0x0

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: BVSYNC: (0x22044) = 0x0

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: RBSYNC: (0x 2044) = 0x0

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: VBSYNC: (0x12040) = 0x0

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: trying to clear semaphore wait on MAIN ring

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: stampWait: Overflowed checking for stamp 0x17614f on MAIN ring: called from

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: timestamp = 0x1760fe

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: ****  Debug info for *possible* hang in MAIN graphics engine  ****

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: ring head    = 0xd9c0f1c8, wrap count = 1742

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: ring tail    = 0x000009d0

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: ring control = 0x0000f401   enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: timestamps = 0x1760fe

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: Semaphore register values:

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: VRSYNC: (0x12044) = 0x1760fe

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: BRSYNC: (0x22040) = 0x1

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: RVSYNC: (0x 2040) = 0x0

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: BVSYNC: (0x22044) = 0x0

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: RBSYNC: (0x 2044) = 0x0

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: VBSYNC: (0x12040) = 0x0

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: trying to clear semaphore wait on MAIN ring

    Aug 28 01:26:19 MacBook-Pro-de-Andres-2 kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: stampWait: Overflowed checking for stamp 0x17614f on MAIN ring: called from

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: timestamp = 0x176105

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: ****  Debug info for *possible* hang in MAIN graphics engine  ****

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: ring head    = 0xd9c0f3f4, wrap count = 1742

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: ring tail    = 0x000009d0

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: ring control = 0x0000f401   enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: timestamps = 0x176105

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: Semaphore register values:

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: VRSYNC: (0x12044) = 0x176105

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: BRSYNC: (0x22040) = 0x1

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: RVSYNC: (0x 2040) = 0x0

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: BVSYNC: (0x22044) = 0x0

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: RBSYNC: (0x 2044) = 0x0

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: VBSYNC: (0x12040) = 0x0

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: trying to clear semaphore wait on MAIN ring

    Aug 28 01:26:24 MacBook-Pro-de-Andres-2 kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: stampWait: Overflowed checking for stamp 0x17614f on MAIN ring: called from

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: timestamp = 0x17610f

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: ****  Debug info for *possible* hang in MAIN graphics engine  ****

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: ring head    = 0xd9c0f718, wrap count = 1742

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: ring tail    = 0x00000e10

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: ring control = 0x0000f401   enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: timestamps = 0x17610f

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: Semaphore register values:

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: VRSYNC: (0x12044) = 0x17610f

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: BRSYNC: (0x22040) = 0x1

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: RVSYNC: (0x 2040) = 0x0

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: BVSYNC: (0x22044) = 0x0

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: RBSYNC: (0x 2044) = 0x0

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: VBSYNC: (0x12040) = 0x0

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: trying to clear semaphore wait on MAIN ring

    Aug 28 01:26:29 MacBook-Pro-de-Andres-2 kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: stampWait: Overflowed checking for stamp 0x17614f on MAIN ring: called from

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: timestamp = 0x176116

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: ****  Debug info for *possible* hang in MAIN graphics engine  ****

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: ring head    = 0xd9c0fa2c, wrap count = 1742

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: ring tail    = 0x00000e10

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: ring control = 0x0000f401   enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: timestamps = 0x176116

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: Semaphore register values:

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: VRSYNC: (0x12044) = 0x176116

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: BRSYNC: (0x22040) = 0x1

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: RVSYNC: (0x 2040) = 0x0

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: BVSYNC: (0x22044) = 0x0

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: RBSYNC: (0x 2044) = 0x0

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: VBSYNC: (0x12040) = 0x0

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: trying to clear semaphore wait on MAIN ring

    Aug 28 01:26:34 MacBook-Pro-de-Andres-2 kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: stampWait: Overflowed checking for stamp 0x17614f on MAIN ring: called from

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: timestamp = 0x176118

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: ****  Debug info for *possible* hang in MAIN graphics engine  ****

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: ring head    = 0xd9c0fab8, wrap count = 1742

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: ring tail    = 0x00000e10

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: ring control = 0x0000f401   enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: timestamps = 0x176118

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: Semaphore register values:

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: VRSYNC: (0x12044) = 0x176118

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: BRSYNC: (0x22040) = 0x1

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: RVSYNC: (0x 2040) = 0x0

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: BVSYNC: (0x22044) = 0x0

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: RBSYNC: (0x 2044) = 0x0

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: VBSYNC: (0x12040) = 0x0

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: trying to clear semaphore wait on MAIN ring

    Aug 28 01:26:39 MacBook-Pro-de-Andres-2 kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: stampWait: Overflowed checking for stamp 0x17614f on MAIN ring: called from

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: timestamp = 0x17611a

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: ****  Debug info for *possible* hang in MAIN graphics engine  ****

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: ring head    = 0xd9c0fb40, wrap count = 1742

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: ring tail    = 0x00000e10

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: ring control = 0x0000f401   enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: timestamps = 0x17611a

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: Semaphore register values:

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: VRSYNC: (0x12044) = 0x17611a

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: BRSYNC: (0x22040) = 0x1

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: RVSYNC: (0x 2040) = 0x0

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: BVSYNC: (0x22044) = 0x0

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: RBSYNC: (0x 2044) = 0x0

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: VBSYNC: (0x12040) = 0x0

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: trying to clear semaphore wait on MAIN ring

    Aug 28 01:26:44 MacBook-Pro-de-Andres-2 kernel[0]: After attempt to clear semaphore wait = 0x0000f001 no longer waiting

    Aug 28 01:26:49 MacBook-Pro-de-Andres-2 kernel[0]: stampWait: Overflowed checking for stamp 0x17614f on MAIN ring: called from

    Aug 28 01:26:49 MacBook-Pro-de-Andres-2 kernel[0]: timestamp = 0x17611c

    Aug 28 01:26:49 MacBook-Pro-de-Andres-2 kernel[0]: ****  Debug info for *possible* hang in MAIN graphics engine  ****

    Aug 28 01:26:49 MacBook-Pro-de-Andres-2 kernel[0]: ring head    = 0xd9c0fbc8, wrap count = 1742

    Aug 28 01:26:49 MacBook-Pro-de-Andres-2 kernel[0]: ring tail    = 0x00000e10

    Aug 28 01:26:49 MacBook-Pro-de-Andres-2 kernel[0]: ring control = 0x0000f401   enabled, auto report disabled, not waiting, semaphore is waiting, length = 0x010 4KB pages

     

    ONE MORE TIME REBOOTING MY MBP...

     

    Aug 28 01:28:34 MacBook-Pro-de-Andres-2 kernel[0]: ****  Debug info for *possible* hang in BLT graphics engine  ****

    Aug 28 01:28:34 MacBook-Pro-de-Andres-2 kernel[0]: ring head    = 0xbea0a788, wrap count = 1525

    Aug 28 01:28:34 MacBook-Pro-de-Andres-2 kernel[0]: ring tail    = 0x0000f020

    Aug 28 01:28:34 MacBook-Pro-de-Andres-2 kernel[0]: ring control = 0x0000f001   enabled, auto report disabled, not waiting, semaphore not waiting, length = 0x010 4KB pages

    Aug 28 01:28:34 MacBook-Pro-de-Andres-2 kernel[0]: timestamps = 0x64875

    Aug 28 01:28:34 MacBook-Pro-de-Andres-2 kernel[0]: Semaphore register values:

    Aug 28 01:28:34 MacBook-Pro-de-Andres-2 kernel[0]: VRSYNC: (0x12044) = 0x17612a

    Aug 28 01:28:34 MacBook-Pro-de-Andres-2 kernel[0]: BRSYNC: (0x22040) = 0x1

    Aug 28 01:28:34 MacBook-Pro-de-Andres-2 kernel[0]: RVSYNC: (0x 2040) = 0x0

    Aug 28 01:28:34 MacBook-Pro-de-Andres-2 kernel[0]: BVSYNC: (0x22044) = 0x0

    Aug 28 01:28:34 MacBook-Pro-de-Andres-2 kernel[0]: RBSYNC: (0x 2044) = 0x0

    Aug 28 01:28:34 MacBook-Pro-de-Andres-2 kernel[0]: VBSYNC: (0x12040) = 0x0

    Aug 28 01:29:21 localhost bootlog[0]: BOOT_TIME 1346135361 0

    Aug 28 01:29:48 localhost kernel[0]: PMAP: PCID enabled

    Aug 28 01:29:48 localhost kernel[0]: Darwin Kernel Version 12.1.0: Tue Aug 14 13:29:55 PDT 2012; root:xnu-2050.9.2~1/RELEASE_X86_64

     

    maybe, Have you identified this problem?..this happens randomly, at this time I have not a kind of pattern in order to understand this behavior...If you need more information about my MB I could post it again.

  • 37. Re: Mountain Lion Screen Freeze
    iChrisbe Level 1 Level 1 (0 points)

    I'm having the same problem.. but i fix this (no more freeze at this moment) when I do a "clean" install of Mountain Lion... Maybe the solution !

  • 38. Re: Mountain Lion Screen Freeze
    Luobote Level 1 Level 1 (0 points)

    I hope i'm don't jynx myself here but i havent had any freezes for 2 days straight. That's a record since before the freezes would be daily or even twice a day. And that's to say I use my laptop from 9 in the morning til 10 in the evening.

    I don't know what could be the solution, if there is a solution at all here. Maybe I get a freeze sometime later.

    I did use Onyx app to clean the system. Delete caches, verify disks, repair permissions etc.

     

    Anyway, I hope we can put a finger on the problem soon and have a concrete culprit. This guessing isn't really getting us anywhere.

  • 39. Re: Mountain Lion Screen Freeze
    iChrisbe Level 1 Level 1 (0 points)

    First freeze in many days after clean install and update to 10.8.1

  • 40. Re: Mountain Lion Screen Freeze
    diederik-tnc Level 1 Level 1 (0 points)

    same problem here, on a iMac 2.66 GHz, Intel Core i5

    basically with Mail, after quitting Mail runs OK again

    - deleted cache

    - reset pram

    - safe booted

    - ran Yasu

    no improvement (only temp. after deleted cache)

    randomly freezes, activity then shows NO cpu use, after 0,5-2 minutes runs again for 10-40 secs,

    search in mail seems to induce it inmedeately.

     

    no problem on

    - 2.66 GHz Intel core 2 duo / 4 Gb iMac

    - 2.4 GHz Intel core 2 duo / 4 Gb

     

    all running 10.8.1

     

    any clue?

    tx

     

    diederik

  • 41. Re: Mountain Lion Screen Freeze
    iChrisbe Level 1 Level 1 (0 points)

    and now :

    28/08/12 14:18:12,800 Safari[153]: CGContextGetBaseCTM: invalid context 0x0

    28/08/12 14:18:12,800 Safari[153]: CGContextGetDefaultUserSpaceToDeviceSpaceTransform: invalid context 0x0
    28/08/12 14:27:03,228 com.apple.SecurityServer[15]: Session 100017 created
    28/08/12 14:28:03,000 kernel[0]: NVDA(OpenGL): Channel exception! exception type = 0xd = GR: SW Notify Error
    28/08/12 14:28:03,000 kernel[0]: IOVendorGLContext::ReportGPURestart
    28/08/12 14:28:03,000 kernel[0]: 0000006e
    28/08/12 14:28:03,000 kernel[0]: 00100000 00008697 00000474 00000000
    any many kernel after...
  • 42. Re: Mountain Lion Screen Freeze
    Canadianpj Level 1 Level 1 (0 points)

    I was really hoping that 10.8.1 would fix this for me as well but it did no such thing. It seems to be less frequent or I've just gotten lucky but it is certainly not fixed.

     

    Ive reset everything that can be reset, had the hardware checked at the Apple Store and even done a fresh install.

     

    Best I think we can do at this point is wait until 10.8.2 and hope for the best.

  • 43. Re: Mountain Lion Screen Freeze
    andres.luna Level 1 Level 1 (0 points)

    I think a new release (10.8.2) could solve this issue as long as apple developers consider this like a major problem.  We could think about the people that have no chance to participate in this community..it could help them too.

     

    My 2 cents again

  • 44. Re: Mountain Lion Screen Freeze
    mokap Level 1 Level 1 (10 points)

    I have the similar problem and log with my MBP(2011) 13" after i upgrade to Mountain Lion.

    Both 10.8 and 10.8.1.

    System freeze rendomly 2~3 times and have to reboot via the power button.

    Since the 10.8.1 does not solve this problem, i find a 10.8.2 beta upgrade on the net and install it for the test.

    After 3 days test my system works just fine as before without any freeze.

    So i think the 10.8.2 upgrade may worth to wait for who have this freeze problem.

     

    Hope the official 10.8.2 upgrade coming soon

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