hangs on "signpost_notificationd Skylight"

new, persistent, and aggravating experience of hangs

Console in those moments registers the above error message repeatedly. Most recent occurrence while trying to scroll through a FB message in Safari

ideas?

fixes?

thanks

MacBook Air, macOS High Sierra (10.13.3), 512 GB SSD

Posted on Feb 21, 2018 8:22 AM

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50 replies

Owl-53

Level 10

102,463 points

Apr 10, 2018 6:57 AM in response to PATRICKMELE

PatrickMele,

Further, today is last day I can upload from the Capture_Data App Apple sent me last week. Have already uploaded two files one from 12" Retina MacBook and one from Late 2012 iMac both erased and clean install 10.13.4.

Let us see what comes of all this is anything.

soupx

Level 1

9 points

Apr 11, 2018 5:40 AM in response to pcpclafferty

Same problem here, I'm using a 2016 MBP with Touch Bar, getting the error "0 is not a valid connection ID" and having some performance hits, Mac becomes unresponsive for a few seconds every couple of minutes. Happening since upgrading to 10.13.4

May 4, 2018 2:06 PM in response to Owl-53

These messages also fill my console (I believe this began after I upgraded to OS 10.13.4 (17E202) on ~May 1. It does not seem to be taking much OS time on my system monitor, but I tried the Force Quit through monitor (P.Phillips suggestion). Indeed, those notifications have gone away. But there are other notifications that I have not seen before. Time will tell. I have to deal with the flood of Norton "symquald" activity first (~400% CPU?) ... (another thread).

iMac 27-inch, Processor - 4.2 GHz i7, Memory - 16 GB; 2TB Fusion Drive ((128GB flash)

Apr 11, 2018 6:34 AM in response to pcpclafferty

Same issues here.

signpost_notificationd still generating a perpetual error.

IMac late 2013

High Sierra rev 10.13.4

Hope Apple will solve this issue

Thanks

Jun 2, 2018 2:21 PM in response to Owl-53

Thanks, that did it! I just updated to 10.13.5 and now my console is remarkably quiet 🙂

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hangs on "signpost_notificationd Skylight"