Involuntary reboot log 10.15

Machine was asleep and lid closed, but on opening the laptop lid, couldn’t see the lock screen. It just stayed black. Closing/reopening lid showed display turning off and on again. Hitting Escape turned the display off. Brightness keys still worked. I tried blindly entering my password but that didn’t work. Eventually gave up and did hard reset.

Statistics so far for this machine

  • Failure type: hard reset
  • OS version: 11.4
  • Uptime at moment of failure: unknown
  • Kernel panics: 1
  • Hard resets: 15
  • Total failures: 15
  • Start of recording keeping: 31 October 2017
  • Total days to date: 1378
  • Average time between failures: 91.87

Summary of events for this machine

  1. 2017-11-16: jammed keyboard on waking from sleep.
  2. 2017-11-16: spontaneous reboot on waking from sleep.
  3. 2018-07-15: frozen mouse pointer.
  4. 2018-11-03: jammed keyboard on waking from sleep.
  5. 2018-11-16: jammed keyboard on waking from sleep.
  6. 2018-11-18: jammed keyboard on waking from sleep.
  7. 2018-11-24: freeze half-way through passphrase entry on waking from sleep.
  8. 2018-11-24: jammed keyboard on waking from sleep.
  9. 2018-11-27: jammed keyboard on waking from sleep (even with Karabiner-Elements partially disabled).
  10. 2018-11-29: jammed keyboard on waking from sleep (even with Karabiner-Elements totally disabled).
  11. 2018-12-03: jammed keyboard on waking from sleep (because key repeat was not turned off; it seems the hook did not run).
  12. 2019-07-06: total freeze on waking from sleep, post-screen-unlock.
  13. 2020-06-22: unable to unlock or make backlight come on.
  14. 2020-12-03: some keys inoperative at lock screen.
  15. 2021-08-09: stuck at blank lock screen.

Historical data (all machines)

For comparison, previous generations of machines (from most oldest to most recent) that I’ve used have had averages of:

Active? Average uptime Total lifetime Log Model Description
~13.83 days ~540 days #1 — #39 PowerMac G5 personal machine
22.73 days 1,364 days #40 — #60 iMac (17", Early 2006) personal machine
20.06 days 321 days 2.x iMac (27", Late 2009) personal machine
19.11 days 707 days 3.x MacBook Air (13", Late 2010) work machine (Causes)
41.86 days 293 days 4.x MacBook Air (13", Mid-2012) work machine (Causes)
2.0 days 2 days 5.x MacBook (unsure of model) work machine (Causes), loaner laptop
27.176 days 462 days 6.x MacBook Air (13", Mid-2013) work machine (Facebook)
35.0 days 140 days 7.x as above, but with a replacement shell work machine (Facebook)
40.8 days 245 days 8.x MacBook Pro (Retina, 15-inch, Mid 2015) work machine (Facebook)
87.0 days 522 days 9.x MacBook Pro (Haswell, Mid-2015, dual graphics) work machine (Facebook)
91.87 days 1,378+ days 10.x MacBook Pro (Haswell, Mid-2015, dual graphics) personal machine
n/a 844 days 11.x MacBook Pro 15-Inch "Core i7" 2.6 Touch/2018 work machine (Liferay)
33.0 days 66+ days 12.x MacBook Pro 13-Inch "M1" 8-Core 3.2 (2020) work machine (GitHub)