Random freezes A1419

Question

Hi..I´m experimenting random freezes on mi iMac A1419 - Core i5 2.9Ghz, GTX 660m 512MB. 16GB DDR3 1600Mhz.240 SSD drive, OS X Sierra 10.12.5Sometimes graphic glitches appear, and sometimes just freezes responding in 1 minute again, sometimes freezes and get back to login screen....  This happens while mostly using Safari, but happens while using 3d software too...Have reset Pram with no success, have changed hard drive, the same.I pray this not to be a not well solved graphic card (reflow it), I do know Nvidia cards don´t have this issue.. may be?Btw, I remember saw in somewhere there is an alternative driver from Nvidia for each model of iMacs... Someone having this issue?Thanks

digimikeh · Answer

yeah, sure... here is:EtreCheck version: 3.4.2 (436)Report generated 2017-07-27 11:32:07Download EtreCheck from https://etrecheck.comRuntime: 1:32Performance: ExcellentClick the [Lookup] links for more information from Apple Support Communities.Click the [Details] links for more information about that line.Problem: BeachballingHardware Information: ⓘ    iMac (27-inch, Late 2012)     [Technical Specifications] - [User Guide] - [Warranty &amp; Service]    iMac - model: iMac13,2    1 2,9 GHz Intel Core i5 (i5-3470S) CPU: 4-core    16 GB RAM Upgradeable - [Instructions]        BANK 0/DIMM0            8 GB DDR3 1600 MHz ok        BANK 1/DIMM0            4 GB DDR3 1600 MHz ok        BANK 0/DIMM1            Empty           BANK 1/DIMM1            4 GB DDR3 1600 MHz ok    Bluetooth: Good - Handoff/Airdrop2 supported    Wireless:  en1: Unknown    iCloud Quota: 5.00 GB availableVideo Information: ⓘ    NVIDIA GeForce GTX 660M - VRAM: 512 MB        iMac 2560 x 1440Disk Information: ⓘ    KINGSTON SV300S37A240G disk0: (240,06 GB) (Solid State - TRIM: No)    [Show SMART report]        EFI (disk0s1 - MS-DOS FAT32) &lt;not mounted&gt;  [EFI]: 210 MB         Mac (disk0s2 - Journaled HFS+) /  [Startup]: 239.71 GB (219.40 GB free)USB Information: ⓘ     USB20Bus          hub_device             Apple Inc. FaceTime HD Camera (Built-in)      USB20Bus          hub_device              hub_device                 Apple Inc. BRCM20702 Hub                     Apple Inc. Bluetooth USB Host Controller      USB30Bus         Mitsumi Electric Hub in Apple Extended USB Keyboard             Mitsumi Electric Apple Extended USB Keyboard          2.4G Mouse Thunderbolt Information: ⓘ    Apple Inc. thunderbolt_busVirtual disks: ⓘ    CUDADriver (disk1s1 - HFS+) /Volumes/CUDADriver : 54 MB (9 MB free)        Physical disk: Disk Image 54 MB (9 MB free)System Software: ⓘ    macOS Sierra  10.12.5 (16F73) - Time since boot: about one hourGatekeeper: ⓘ    Mac App Store and identified developersKernel Extensions: ⓘ        /System/Library/Extensions    [loaded]    com.nvidia.CUDA (1.1.0) [Lookup]System Launch Agents: ⓘ    [not loaded]    7 Apple tasks    [loaded]    186 Apple tasks    [running]    89 Apple tasksSystem Launch Daemons: ⓘ    [not loaded]    42 Apple tasks    [loaded]    178 Apple tasks    [running]    97 Apple tasksLaunch Agents: ⓘ    [not loaded]    com.nvidia.CUDASoftwareUpdate.plist (NVIDIA Corporation - installed 2017-06-15) [Lookup]Launch Daemons: ⓘ    [loaded]    com.bombich.ccchelper.plist (Bombich Software, Inc. - installed 2017-07-26) [Lookup]    [not loaded]    com.nvidia.cuda.launcher.plist (Shell Script 20f73770 - installed 2017-06-15) [Lookup]    [loaded]    com.nvidia.cudad.plist (NVIDIA Corporation - installed 2017-06-15) [Lookup]Internet Plug-ins: ⓘ    QuickTime Plugin: 7.7.3 (installed 2017-04-28)3rd Party Preference Panes: ⓘ    CUDA Preferences (installed 2017-06-15) [Lookup]Time Machine: ⓘ    Time Machine not configured!Top Processes by CPU: ⓘ        10%   WindowServer         8%   Safari         3%   com.apple.WebKit.WebContent         2%   kernel_task         2%   hiddTop Processes by Memory: ⓘ    957 MB    kernel_task    514 MB    com.apple.WebKit.WebContent    183 MB    Safari    124 MB    WindowServer    101 MB    AppleSpellTop Processes by Network Use: ⓘ    Input     Output    Process name    2 MB      228 KB    com.apple.WebKit.Networking    54 KB     42 KB     mDNSResponder    50 KB     5 KB      netbiosd    5 KB      5 KB      apsd    2 KB      2 KB      ntpdTop Processes by Energy Use: ⓘ      5.72 WindowServer      2.62 Safari      2.48 com.apple.WebKit.WebContent      0.60 com.apple.WebKit.NetworkingVirtual Memory Information: ⓘ    12.58 GB  Available RAM    8.10 GB   Free RAM    3.42 GB   Used RAM    4.48 GB   Cached files    0 B       Swap UsedSoftware installs: ⓘ    Unity: 5.3.1f1 (installed 2017-07-26)    AndroidPlayer: 5.3.1f1 (installed 2017-07-26)    Unity: 2017.1.0f3 (installed 2017-07-26)    Unity Documentation: 2017.1.0f3 (installed 2017-07-26)    CUDA 8.0:  (installed 2017-07-27)    Install information may not be complete.Diagnostics Information: ⓘ    2017-07-27 10:30:37    WindowServer Crash [Open]        Cause:        abort() called

digimikeh · Answer

Freezes again.., that happen while browsing a file from Chrome. but it is obviously GPU problem (don´t know if driver or hardware...)EtreCheck version: 3.4.2 (436)Report generated 2017-07-27 12:32:35Download EtreCheck from https://etrecheck.comRuntime: 1:31Performance: ExcellentClick the [Lookup] links for more information from Apple Support Communities.Click the [Details] links for more information about that line.Problem: Apps are crashingHardware Information: ⓘ    iMac (27-inch, Late 2012)     [Technical Specifications] - [User Guide] - [Warranty &amp; Service]    iMac - model: iMac13,2    1 2,9 GHz Intel Core i5 (i5-3470S) CPU: 4-core    16 GB RAM Upgradeable - [Instructions]        BANK 0/DIMM0            8 GB DDR3 1600 MHz ok        BANK 1/DIMM0            4 GB DDR3 1600 MHz ok        BANK 0/DIMM1            Empty           BANK 1/DIMM1            4 GB DDR3 1600 MHz ok    Bluetooth: Good - Handoff/Airdrop2 supported    Wireless:  en1: Unknown    iCloud Quota: 5.00 GB availableVideo Information: ⓘ    NVIDIA GeForce GTX 660M - VRAM: 512 MB        iMac 2560 x 1440Disk Information: ⓘ    KINGSTON SV300S37A240G disk0: (240,06 GB) (Solid State - TRIM: No)    [Show SMART report]        EFI (disk0s1 - MS-DOS FAT32) &lt;not mounted&gt;  [EFI]: 210 MB         Mac (disk0s2 - Journaled HFS+) /  [Startup]: 239.71 GB (218.81 GB free)USB Information: ⓘ     USB20Bus          hub_device             Apple Inc. FaceTime HD Camera (Built-in)      USB20Bus          hub_device              hub_device                 Apple Inc. BRCM20702 Hub                     Apple Inc. Bluetooth USB Host Controller      USB30Bus         Mitsumi Electric Hub in Apple Extended USB Keyboard             Mitsumi Electric Apple Extended USB Keyboard          2.4G Mouse Thunderbolt Information: ⓘ    Apple Inc. thunderbolt_busSystem Software: ⓘ    macOS Sierra  10.12.5 (16F73) - Time since boot: about 2 hoursGatekeeper: ⓘ    Mac App Store and identified developersKernel Extensions: ⓘ        /System/Library/Extensions    [loaded]    com.nvidia.CUDA (1.1.0) [Lookup]System Launch Agents: ⓘ    [not loaded]    7 Apple tasks    [loaded]    190 Apple tasks    [running]    85 Apple tasksSystem Launch Daemons: ⓘ    [not loaded]    42 Apple tasks    [loaded]    175 Apple tasks    [running]    100 Apple tasksLaunch Agents: ⓘ    [loaded]    com.nvidia.CUDASoftwareUpdate.plist (NVIDIA Corporation - installed 2017-06-15) [Lookup]Launch Daemons: ⓘ    [loaded]    com.bombich.ccchelper.plist (Bombich Software, Inc. - installed 2017-07-26) [Lookup]    [not loaded]    com.nvidia.cuda.launcher.plist (Shell Script 20f73770 - installed 2017-06-15) [Lookup]    [loaded]    com.nvidia.cudad.plist (NVIDIA Corporation - installed 2017-06-15) [Lookup]User Launch Agents: ⓘ    [loaded]    com.google.keystone.agent.plist (Google, Inc. - installed 2017-07-27) [Lookup]Internet Plug-ins: ⓘ    QuickTime Plugin: 7.7.3 (installed 2017-04-28)3rd Party Preference Panes: ⓘ    CUDA Preferences (installed 2017-06-15) [Lookup]Time Machine: ⓘ    Time Machine not configured!Top Processes by CPU: ⓘ         3%   WindowServer         0%   fontd         0%   kernel_task         0%   Dock         0%   notifydTop Processes by Memory: ⓘ    1005 MB   kernel_task    144 MB    Google Chrome    116 MB    Google Chrome Helper    105 MB    mds_stores    101 MB    Google Chrome HelperTop Processes by Network Use: ⓘ    Input     Output    Process name    135 KB    53 KB     mDNSResponder    108 KB    6 KB      netbiosd    22 KB     14 KB     CalendarAgent    11 KB     23 KB     apsd    26 KB     4 KB      com.apple.iCloudHelperTop Processes by Energy Use: ⓘ      4.32 WindowServer      2.58 mds      0.70 trustd      0.68 trustdVirtual Memory Information: ⓘ    13.14 GB  Available RAM    8.16 GB   Free RAM    2.86 GB   Used RAM    4.98 GB   Cached files    0 B       Swap UsedSoftware installs: ⓘ    Unity: 5.3.1f1 (installed 2017-07-26)    AndroidPlayer: 5.3.1f1 (installed 2017-07-26)    Unity: 2017.1.0f3 (installed 2017-07-26)    Unity Documentation: 2017.1.0f3 (installed 2017-07-26)    CUDA 8.0:  (installed 2017-07-27)    Install information may not be complete.Diagnostics Information: ⓘ    2017-07-27 12:30:36    WindowServer Crash [Open]        Cause:        Assertion failed: (false &amp;&amp; "10 seconds of continuous GPU Driver unreadiness, relaunching WindowServer"), function void IMGGraphicsStackReadinessFailure(), file Server/Windows/Updater.cc, line 2864.

macjack · Answer

Your Etrecheck report looks about as clean as any I&#x27;ve seen. The only thing may be an issue between Unity and Android, I think I saw something about that. You might try uninstalling one or the other or both and testing.Also, might try running Apple Hardware Test:How to use Apple Hardware Test on your Mac - Apple Support

macjack · Answer

Please download and run EtreCheck, created by one of own helpers here in ASC. It is a diagnostic tool that&#x27;s very useful to us in finding problems. Also it will give us further specs on your Mac. After it runs post the log file here. It will contain no personal information.

digimikeh · Answer

Apple Hardware test did not report any problem..at first i have thought there is a problem with GPU chip needing reflow it, but I have installed Windows to see how it works, and till now, there is no crashes, i have used chrome, unity3d and other 3d apps with no problems!So this is not a hw issue, i could return to mountain lion, but one of my most important application does not work on that version of osx..i can´t get it..have seen other peoples with the same problem in older osx versions..

digimikeh · Answer

ok, will try with apple hardware test..first freeze was without unity initialized...was in the use with Safari.Thanks, I will report results for Apple Hardware Test.