Sleep Wake failure in EFI

Please see the following Error Report that I received after powering up my Macbook Pro this morning.

I have emphasized each area of concern by putting it in bold face font.

Please note, the device I am using is mine and mine alone. I do not wish to share any aspects of my device (network, display, etc.) and I have never manually (or intentionally) configured external connections to this computer. If this report proves that there are any external devices connected to mine, kindly provide me with the proper directions so I can remove them.


Please note, I am working on the following device:

MODEL: MacBook Pro (15-inch, 2017)

PROCESSOR: 2.8 GHz Quad-Core Intel Core i7

Operation System: Catalina 10.15.2


My questions about the report are:

  • Why does the report state that "OS Version" is "??? ??? (Build ???)"
  • What is process swd (288)?
    • Is this process neccessary to the OS or could it be problematic?
    • If it is not a required process, how do I remove it?
  • Why are there 2 "Graphics" displays for this device?
    • Why is one of the Graphics an AMD Radeon
  • Bluetooth & Bluetooth sharing settings are off/disabled on my device at this point in time, so I would like to know:
    • Is it normal for the report to print these results in this case?
    • What exactly are the 18 devices listed in the report?
      • Is there a way for me to identify these devices. (** Please note: When I boot into Recvovery Mode, open my terminal and type the command,
        "diskutil list"
        my terminal returns a list of 18 external disks (note: this command does not print the same results outside of Recovery Mode).
  • (Note: I have never used Thunderbolt, but everytime I power up my Mac and connect to the Internet (via Wifi or Ethernet) there are 5-8 Thunderbolt Devices connected through "bridge0" that I have to manually remove via System Settings > Network > Advanced > Manage Virtual Interfaces > Remove).
    • Is it unusual that there are 2 Thunderbolt Buseslisted in the provided report?
      • If so, how do I remove unneccessary thunderbolt connections?


    • Please see the following report generated by my device:


    Sleep Wake failure in EFI


    Failure code:: 0xffffffff 0x0000001f


    Please IGNORE the below stackshot


    ================================================================

    Date/Time:        2020-01-21 03:57:04 -0500

    OS Version:       ??? ??? (Build ???)

    Architecture:     x86_64

    Report Version:   29


    Data Source:      Stackshots

    Shared Cache:     0x81d3000 5A122E7E-F36A-3CB0-B51C-2814884B44E7


    Event:            Sleep Wake Failure

    Duration:         0.00s

    Steps:            1


    Time Awake Since Boot: 10s


    Process:          swd [288]

    Architecture:     x86_64

    Footprint:        452 KB

    Start time:       2020-01-21 03:57:04 -0500

    End time:         2020-01-21 03:57:04 -0500

    Num samples:      1 (1)


      Thread 0x81b    1 sample (1)    priority 4 (base 4)

      <thread QoS background (requested background), thread darwinbg, process darwinbg, IO tier 2>

      1 start + 1 (libdyld.dylib + 108541) [0x7fff6b2517fd] 1

        1 ??? [0x102a4e454] 1

          1 ??? [0x102a4e1dd] 1

            1 __stack_snapshot_with_config + 10 (libsystem_kernel.dylib + 136138) [0x7fff6b3b23ca] 1

             *1 ??? [0xffffff80002e3206] 1

               *1 ??? [0xffffff800099acba] 1

                 *1 ??? [0xffffff80008b3bc1] 1

                   *1  ??? [0xffffff8000306467] (running) 1


      Binary Images:

            0x7fff6b237000 -     0x7fff6b26cfff  libdyld.dylib (733.8)              <8E2D3DED-0756-37A0-9D55-B9264CA020B4>  /usr/lib/system/libdyld.dylib

            0x7fff6b391000 -     0x7fff6b3bdfff  libsystem_kernel.dylib (6153.61.1) <90F8650F-D3A9-38B3-BB8C-B5D3686393BC> /usr/lib/system/libsystem_kernel.dylib

    Model: MacBookPro14,3, BootROM 203.0.0.0.0, 4 processors, Quad-Core Intel Core i7, 2.8 GHz, 16 GB, SMC 2.45f1

    Graphics: kHW_IntelHDGraphics630Item, Intel HD Graphics 630, spdisplays_builtin

    Graphics: kHW_AMDRadeonPro555Item, Radeon Pro 555, spdisplays_pcie_device, 2 GB

    fmemory: BANK 0/DIMM0, 8 GB, LPDDR3, 2133 MHz, 0x802C, 0x4D5435324C31473332443450472D30393320

    Memory Module: BANK 1/DIMM0, 8 GB, LPDDR3, 2133 MHz, 0x802C, 0x4D5435324C31473332443450472D30393320

    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x173), Broadcom BCM43xx 1.0 (7.77.106.3 AirPortDriverBrcmNIC-1435.3)

    Bluetooth: Version 7.0.2f4, 3 services, 18 devices, 1 incoming serial ports

    USB Device: USB 3.0 Bus

    USB Device: Apple T1 Controller

    Thunderbolt Bus: MacBook Pro, Apple Inc., 41.3

    Thunderbolt Bus: MacBook Pro, Apple Inc., 41.3
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