So this is still happening just now it is a different error than Watchdog now it is saying AMDFrambuffer and it is crashing randomly when I am using it. What I have done so far... reset using all key combinations at startup delete hard drive and reinstall turned off power saver features with monitors selected mac color profiles for external monitors pull hair out and consider going back to Windows I run 3 external monitors one 27" LG 4k and 2 24" dell HD monitors off of my iMac Pro. System and error is as follows... Model Name: iMac Pro Model Identifier: iMacPro1,1 Processor Name: 8-Core Intel Xeon W Processor Speed: 3.2 GHz Number of Processors: 1 Total Number of Cores: 8 L2 Cache (per Core): 1 MB L3 Cache: 11 MB Hyper-Threading Technology: Enabled Memory: 32 GB panic(cpu 0 caller 0xffffff800e3d5f07): "AMDFramebufferVega10::setPowerState(0xffffff93786e4800 : 0xffffff7fa72b3c1c, 2 - 1) timed out after 45611 ms"@/System/Volumes/Data/SWE/macOS/BuildRoots/2288acc43c/Library/Caches/com.apple.xbs/Sources/xnu/xnu-7195.101.2/iokit/Kernel/IOServicePM.cpp:5382 Backtrace (CPU 0), Frame : Return Address 0xffffffc111b03ac0 : 0xffffff800dc8e02d 0xffffffc111b03b10 : 0xffffff800ddd48e3 0xffffffc111b03b50 : 0xffffff800ddc4eda 0xffffffc111b03ba0 : 0xffffff800dc32a2f 0xffffffc111b03bc0 : 0xffffff800dc8d84d 0xffffffc111b03ce0 : 0xffffff800dc8db43 0xffffffc111b03d50 : 0xffffff800e49d68a 0xffffffc111b03dc0 : 0xffffff800e3d5f07 0xffffffc111b03e10 : 0xffffff800e3d5829 0xffffffc111b03e20 : 0xffffff800e3ee96e 0xffffffc111b03e60 : 0xffffff800e3d45a8 0xffffffc111b03e80 : 0xffffff800dcd44b5 0xffffffc111b03ef0 : 0xffffff800dcd5424 0xffffffc111b03fa0 : 0xffffff800dc3213e Process name corresponding to current thread: kernel_task Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev Mac OS version: 20E241 Kernel version: Darwin Kernel Version 20.4.0: Thu Apr 22 21:46:47 PDT 2021; root:xnu-7195.101.2~1/RELEASE_X86_64 Kernel UUID: 068F99A3-1DB3-31C0-87D5-09942F122BB6 KernelCache slide: 0x000000000da00000 KernelCache base: 0xffffff800dc00000 Kernel slide: 0x000000000da10000 Kernel text base: 0xffffff800dc10000 __HIB text base: 0xffffff800db00000 System model name: iMacPro1,1 (Mac-7BA5B2D9E42DDD94) System shutdown begun: NO Hibernation exit count: 0 System uptime in nanoseconds: 1173030792263 Last Sleep: absolute base_tsc base_nano Uptime : 0x000001111e1574d2 Sleep : 0x0000000000000000 0x0000000000000000 0x0000000000000000 Wake : 0x0000000000000000 0x0000000b7ebe19ca 0x0000000000000000 last started kext at 118468815923: @filesystems.smbfs 3.5 (addr 0xffffff7fa7ca6000, size 487424) last stopped kext at 519608357640: |IOHDA!F 283.15 (addr 0xffffff7fa5d05000, size 16384) loaded kexts: @filesystems.smbfs 3.5 !ATopCaseHIDEventDriver 4040.11 AudioAUUC 1.70 AGPM 122 !APlatformEnabler 2.7.0d0 X86PlatformShim 1.0.0 @filesystems.autofs 3.0 !AHIDALSService 1 !AUpstreamUserClient 3.6.8 @kext.AMDFramebuffer 4.0.4 @fileutil 20.036.15 @kext.AMDRadeonServiceManager 4.0.4 @kext.AMDRadeonX5000 4.0.4 !AGraphicsDevicePolicy 6.2.9 @AGDCPluginDisplayMetrics 6.2.9 pmtelemetry 1 |IOUserEthernet 1.0.1 usb.!UUserHCI 1 |IO!BSerialManager 8.0.4d18 @Dont_Steal_Mac_OS_X 7.0.0 !AHV 1 !ADiskImages2 1 BridgeAudioCommunication 140.4 !AAVEBridge 6.1 !A!ISlowAdaptiveClocking 4.0.0 !AGFXHDA 100.1.433 @kext.AMD10000!C 4.0.4 !AMCCSControl 1.14 !A!IPCHPMC 2.0.1 !AThunderboltIP 4.0.3 !A!IMCEReporter 115 !ABridgeAudio!C 140.4 usb.!UHostBillboardDevice 1.0 !UCardReader 511.101.1 @!AEthernetAquantiaAqtionFirmware 1.0.36 |SCSITaskUserClient 436.100.4 BCMWLANFirmware4378.Hashstore 1 BCMWLANFirmware4377.Hashstore 1 BCMWLANFirmware4364.Hashstore 1 BCMWLANFirmware4355.Hashstore 1 !AFileSystemDriver 3.0.1 @filesystems.tmpfs 1 @filesystems.hfs.kext 556.100.11 @BootCache 40 @!AFSCompression.!AFSCompressionTypeZlib 1.0.0 @!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1 @filesystems.apfs 1677.100.114 !ABCMWLANBusInterfacePCIeMac 1 @private.KextAudit 1.0 !AACPIButtons 6.1 !ASMBIOS 2.1 !AACPIEC 6.1 !AAPIC 1.7 @!ASystemPolicy 2.0.0 @nke.applicationfirewall 311 |IOKitRegistryCompatibility 1 |EndpointSecurity 1 !AHIDKeyboard 224 !AMultitouchDriver 4440.3 !AInputDeviceSupport 4400.35 !AHS!BDriver 4040.11 IO!BHIDDriver 8.0.4d18 @kext.triggers 1.0 @kext.AMDRadeonX5100HWLibs 1.0 |IOAccelerator!F2 442.9 @kext.AMDRadeonX5000HWServices 4.0.4 |IOAVB!F 940.4 |IOEthernetAVB!C 1.1.0 X86PlatformPlugin 1.0.0 @plugin.IOgPTPPlugin 980.4 |IO!BHost!CUARTTransport 8.0.4d18 |IO!BHost!CTransport 8.0.4d18 @!AGPUWrangler 6.2.9 |IOSlowAdaptiveClocking!F 1.0.0 |IONDRVSupport 585.1 @kext.AMDSupport 4.0.4 !ASMBus!C 1.0.18d1 usb.IOUSBHostHIDDevice 1.2 !A!ILpssUARTv1 3.0.60 !A!ILpssUARTCommon 3.0.60 !AOnboardSerial 1.0 !AGraphicsControl 6.2.9 @!AGraphicsDeviceControl 6.2.9 IOPlatformPlugin!F 6.0.0d8 !AThunderboltDPOutAdapter 8.1.4 |IOGraphics!F 585.1 |IOAudio!F 300.6.1 @vecLib.kext 1.2.0 usb.cdc.ecm 5.0.0 usb.cdc.ncm 5.0.0 usb.!UHub 1.2 usb.cdc 5.0.0 usb.networking 5.0.0 usb.!UHostCompositeDevice 1.2 !ABSDKextStarter 3 |IOSurface 290.7 !AThunderboltDPInAdapter 8.1.4 !AThunderboltDPAdapter!F 8.1.4 !AThunderboltPCIDownAdapter 4.1.1 !AHPM 3.4.4 !A!ILpssI2C!C 3.0.60 !A!ILpssI2C 3.0.60 !A!ILpssDmac 3.0.60 @filesystems.hfs.encodings.kext 1 !AXsanScheme 3 usb.!UVHCIBCE 1.2 usb.!UVHCICommonBCE 1.0 usb.!UVHCI 1.2 usb.!UVHCICommon 1.0 !AEffaceableNOR 1.0 |IOBufferCopy!C 1.1.0 |IOBufferCopyEngine!F 1 |IONVMe!F 2.1.0 !ABCMWLANCoreMac 1.0.0 |IOSerial!F 11 |IO80211!FV2 1200.12.2b1 |IOSkywalk!F 1 IOImageLoader 1.0.0 corecapture 1.0.4 !AThunderboltNHI 7.2.8 |IOThunderbolt!F 9.3.2 !AEthernetAquantiaAqtion 1.0.64 mDNSOffloadUserClient 1.0.1b8 usb.!UHostPacketFilter 1.0 |IOUSB!F 900.4.2 usb.!UXHCIPCI 1.2 usb.!UXHCI 1.2 !AEFINVRAM 2.1 !AEFIRuntime 2.1 !ASMCRTC 1.0 |IOSMBus!F 1.1 |IOHID!F 2.0.0 $!AImage4 3.0.0 |IOTimeSync!F 980.4 |IONetworking!F 3.4 DiskImages 493.0.0 |IO!B!F 8.0.4d18 |IOReport!F 47 |IO!BPacketLogger 8.0.4d18 $quarantine 4 $sandbox 300.0 @kext.!AMatch 1.0.0d1 |CoreAnalytics!F 1 !ASSE 1.0 !AKeyStore 2 !UTDM 511.101.1 |IOUSBMass!SDriver 184.101.1 |IOSCSIBlockCommandsDevice 436.100.4 |IO!S!F 2.1 |IOSCSIArchitectureModel!F 436.100.4 !AMobileFileIntegrity 1.0.5 @kext.CoreTrust 1 !AFDEKeyStore 28.30 !AEffaceable!S 1.0 !ACredentialManager 1.0 KernelRelayHost 1 |IOUSBHost!F 1.2 !UHostMergeProperties 1.2 usb.!UCommon 1.0 !ABusPower!C 1.0 !ASEPManager 1.0.1 IOSlaveProcessor 1 !AACPIPlatform 6.1 !ASMC 3.1.9 |IOPCI!F 2.9 |IOACPI!F 1.4 watchdog 1 @kec.pthread 1 @kec.corecrypto 11.1 @kec.Libm 1

I have been having these a lot lately. I am having flashbacks from Windows ME. userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds I think this was an issue durring one of the last updates in OS X.