While using my MacBook Pro and often while using chrome, my macbook does dark for a sec and then the computer shuts down. I am not sure if this is related to chrome but I tried:
- Resting SMC
- Running Diagnostics which resulted in no findings.
- Installed all updates.
I am trying to see if this is a hardware issue or a software issue, I am leaning toward the latter.
Here is the system log during the window when the issue occurd
Any help is appreciated:
Here are the shutdown logs from shortly before and after:
2021-02-11 13:37:45 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleDisplaySleep "com.apple.audio.context75.preventuseridledisplaysleep" 00:04:45 id:0x0x500008042 [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:45 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleSystemSleep "com.apple.audio.context75.preventuseridlesleep" 00:04:45 id:0x0x100008041 [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:50 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleDisplaySleep "com.apple.audio.context71.preventuseridledisplaysleep" 00:04:51 id:0x0x500008036 [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:50 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleSystemSleep "com.apple.audio.context71.preventuseridlesleep" 00:04:51 id:0x0x100008035 [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:50 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleDisplaySleep "com.apple.audio.context72.preventuseridledisplaysleep" 00:04:51 id:0x0x50000803a [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:50 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleSystemSleep "com.apple.audio.context72.preventuseridlesleep" 00:04:51 id:0x0x100008039 [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:50 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleDisplaySleep "com.apple.audio.context77.preventuseridledisplaysleep" 00:04:49 id:0x0x500008062 [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:50 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleSystemSleep "com.apple.audio.context77.preventuseridlesleep" 00:04:49 id:0x0x100008061 [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:50 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleDisplaySleep "com.apple.audio.context78.preventuseridledisplaysleep" 00:04:49 id:0x0x500008066 [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:50 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleSystemSleep "com.apple.audio.context78.preventuseridlesleep" 00:04:49 id:0x0x100008065 [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:50 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleDisplaySleep "com.apple.audio.context82.preventuseridledisplaysleep" 00:04:43 id:0x0x500008077 [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:50 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleSystemSleep "com.apple.audio.context82.preventuseridlesleep" 00:04:43 id:0x0x100008076 [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:50 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleDisplaySleep "com.apple.audio.context83.preventuseridledisplaysleep" 00:04:43 id:0x0x50000807b [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:50 -0500 Assertions PID 160(coreaudiod) Released PreventUserIdleSystemSleep "com.apple.audio.context83.preventuseridlesleep" 00:04:43 id:0x0x10000807a [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:52 -0500 Assertions PID 928(Software Update) Created MaintenanceWake "com.apple.SoftwareUpdate.RootModeInstaller" 00:00:00 id:0x0xd000080c6 [System: PrevIdle DeclUser kDisp]
2021-02-11 13:37:52 -0500 Assertions PID 928(Software Update) Created PreventUserIdleDisplaySleep "com.apple.SoftwareUpdate.RootModeInstaller.DisplayAwake" 00:00:00 id:0x0x5000080c7 [System: PrevIdle PrevDisp DeclUser kDisp]
2021-02-11 13:38:10 -0500 Assertions Summary- [System: PrevIdle PrevDisp DeclUser SRPrevSleep kCPU kDisp] Using AC(Charge: 99)
2021-02-11 13:40:25 -0500 Assertions PID 244(backupd) ClientDied PreventUserIdleSystemSleep "Time Machine backup" 00:07:43 id:0x0x100008005 [System: PrevIdle PrevDisp DeclUser SRPrevSleep kCPU kDisp]
2021-02-11 13:40:25 -0500 Assertions PID 244(backupd) ClientDied BackgroundTask "Time Machine backup" 00:07:43 id:0x0xb00008004 [System: PrevIdle PrevDisp DeclUser SRPrevSleep kCPU kDisp]
2021-02-11 13:42:11 -0500 Assertions PID 864(system_installd) Released PreventUserIdleSystemSleep "Installing Software (com.apple.PackageKit.installd.commit)" 00:03:13 id:0x0x1000080d8 [System: PrevIdle PrevDisp DeclUser SRPrevSleep kCPU kDisp]
2021-02-11 13:42:33 -0500 Assertions PID 627(softwareupdated) Released PreventUserIdleSystemSleep "Updating Software (com.apple.SoftwareUpdate.Session)" 00:04:09 id:0x0x1000080d7 [System: PrevIdle PrevDisp DeclUser SRPrevSleep kCPU kDisp]
Sleep/Wakes since boot at 2021-02-11 13:32:38 -0500 :0 Dark Wake Count in this sleep cycle:3
output of:
log show --style syslog --last 20m | egrep shutdown\ cause | awk -F')' '{print substr($0,1,19), $NF}'
2021-02-12 16:08:22 Previous shutdown cause: -128
2021-02-12 16:08:38 2021-02-12 16:08:38.087188-0500 localhost DumpPanic[66]: found previous shutdown cause -128
Best Answer
-128
is a catch-all shutdown cause in SMC. It’s unfortunately not specific enough to suggest a particular line of investigation. From experience, a couple of things to look for would be: