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bahamian2382 Author

Level 1

9 points

panic(cpu 2 caller 0xffffff7f9ad9dad5): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds

System keeps crashing while while stepping away from iMac Pro. Here is the problem report for macOS:

service: com.apple.logd, total successful checkins since load (6760 seconds ago): 677, last successful checkin: 0 seconds ago

service: com.apple.WindowServer, total successful checkins since load (6730 seconds ago): 657, last successful checkin: 120 seconds ago

panic(cpu 2 caller 0xffffff7f9ad9dad5):

iMac Pro

Posted on Jan 19, 2020 10:17 AM

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leroydouglas

Community+ 2024

Level 10

188,328 points

Posted on Jan 19, 2020 10:21 AM

Kernel Panics are predominately caused by hardware faults or faulty third-party kernel extensions.

If your Mac spontaneously restarts or displays a ... - Apple Support

https://support.apple.com/en-us/HT200553

You can post your Kernel Panic report in their entirety here, preferable three separate reports in three separate "Additional Text" box (see menu below) for ease of reading and comparison. A single report may be useful but does not establish a trend for a meaningful diagnosis.

Kernel Panic reports can be found /Library/Logs/DiagnosticReports

From the Finder>Go>Go To Folder, copy and paste:

/Library/Logs/DiagnosticReports

ends in .panic post the whole report if it meets that.

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3 replies

Top-ranking reply

leroydouglas

Community+ 2024

Level 10

188,328 points

Jan 19, 2020 10:21 AM in response to bahamian2382

Kernel Panics are predominately caused by hardware faults or faulty third-party kernel extensions.

If your Mac spontaneously restarts or displays a ... - Apple Support

https://support.apple.com/en-us/HT200553

Kernel Panic reports can be found /Library/Logs/DiagnosticReports

From the Finder>Go>Go To Folder, copy and paste:

/Library/Logs/DiagnosticReports

ends in .panic post the whole report if it meets that.

Feb 12, 2020 9:34 AM in response to bahamian2382

I saw a Macrumors thread about this it seems like the issue is still happening in 10.15.3. https://forums.macrumors.com/threads/constant-kernel-panics-userspace-watchdog-timeout-no-successful-checkins-from-com-apple-windowserver.2222878/

bahamian2382 Author

Level 1

9 points

Feb 12, 2020 9:47 AM in response to leroydouglas

I was able to fix the issue in an unusual way. I am running two external monitors which seems to be part of the issue. I disconnected them both. Used the computer for a day without any external monitors. Then I connected one to see if the issue would occur again. The computer went through a few resets over a few days with the single monitor. I then added the second monitor and haven't had any issues since.

panic(cpu 2 caller 0xffffff7f9ad9dad5): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds