Sleep Wake failure in EFI Failure code:: 0xffffffff 0x0000001f Please IGNORE the below stackshot ================================================================ Date/Time: 2020-11-27 10:22:20 +0100 OS Version: ??? ??? (Build ???) Architecture: x86_64 Report Version: 29 Data Source: Stackshots Shared Cache: 0xc42f000 91B2FE1B-3EC8-323F-9ACE-F4FB3B41643E Event: Sleep Wake Failure Duration: 0.00s Steps: 1 Boot args: -v keepsyms=1 debug=0x100 alcid=1 agdpmod=pikera darkwake=0 Time Awake Since Boot: 31s Process: swd [345] Architecture: x86_64 Footprint: 516 KB Start time: 2020-11-27 10:22:20 +0100 End time: 2020-11-27 10:22:20 +0100 Num samples: 1 (1) Thread 0xbd9 1 sample (1) priority 4 (base 4) 1 start + 1 (libdyld.dylib + 109769) [0x7fff735ebcc9] 1 1 ??? [0x102d3a454] 1 1 ??? [0x102d3a1dd] 1 1 __stack_snapshot_with_config + 10 (libsystem_kernel.dylib + 135862) [0x7fff7374d2b6] 1 *1 ??? [0xffffff80002c1206] 1 *1 ??? [0xffffff8000984be7] 1 *1 ??? [0xffffff800089d771] 1 *1 ??? [0xffffff80002e49e7] (running) 1 Binary Images: 0x7fff735d1000 - 0x7fff73607fff libdyld.dylib (750.6) <789A18C2-8AC7-3C88-813D-CD674376585D> /usr/lib/system/libdyld.dylib 0x7fff7372c000 - 0x7fff73758fff libsystem_kernel.dylib (6153.141.2) /usr/lib/system/libsystem_kernel.dylib Model: iMac19,1, BootROM 1037.100.345.0.0, 8 processors, 8-Core Intel Core i9, 3,6 GHz, 64 GB, SMC 2.46f12 Graphics: Radeon RX 5700 XT, Radeon RX 5700 XT, spdisplays_pcie_device, 8 GB Memory Module: BANK 0/ChannelA-DIMM0, 16 GB, DDR4, 2133 MHz, 029E, CMK64GX4M4B3600C18 Memory Module: BANK 1/ChannelA-DIMM1, 16 GB, DDR4, 2133 MHz, 029E, CMK64GX4M4B3600C18 Memory Module: BANK 2/ChannelB-DIMM0, 16 GB, DDR4, 2133 MHz, 029E, CMK64GX4M4B3600C18 Memory Module: BANK 3/ChannelB-DIMM1, 16 GB, DDR4, 2133 MHz, 029E, CMK64GX4M4B3600C18 AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x111), Broadcom BCM43xx 1.0 (7.77.111.1 AirPortDriverBrcmNIC-1615.2) Bluetooth: Version 7.0.6f7, 3 services, 27 devices, 1 incoming serial ports Network Service: Ethernet, Ethernet, en0 Network Service: Wi-Fi, AirPort, en2 USB Device: USB 3.1 Bus USB Device: 4-Port USB 3.0 Hub USB Device: Hub USB Device: Logitech StreamCam USB Device: Hub USB Device: BRCM20702 Hub USB Device: Bluetooth USB Host Controller USB Device: 4-Port USB 2.0 Hub USB Device: Hub USB Device: USB Receiver USB Device: USB Device USB Device: Composite Device USB Device: Hub USB Device: Mass Storage Device USB Device: USB Device USB Device: Composite Device Thunderbolt Bus: