Cannot login, switch users, or gracefully shutdown after sleep

Originator:j.a.grigutis
Number:rdar://24233166 Date Originated:18-Jan-2016 10:52 PM
Status:Open Resolved:
Product:OS X Product Version:10.11.2 (15C50)
Classification:Serious Bug Reproducible:Sometimes
 
Summary:
After waking from sleep, user is presented with a login window showing only their Full Name, the password field, and a cancel button. There are no options to switch users or shutdown. User will attempt to enter his/her password, but it will not be accepted (after a 2 minute timeout). Repeated login attempts will all fail. The user's only option is to force restart/shutdown.

Steps to Reproduce:
I can't reliability reproduce this behavior. It seems to happen at least once a month.

Notes:
It has occurred twice recently which should be captured in the sysdiagnose file attached. The first occurrence was on January 17th at ~ 8:08 PM. The second occurrence was on January 18th at ~ 9:07 PM.

Configuration:
  Model Name:	MacBook Pro
  Model Identifier:	MacBookPro5,2
  Processor Name:	Intel Core 2 Duo
  Processor Speed:	2.93 GHz
  Number of Processors:	1
  Total Number of Cores:	2
  L2 Cache:	6 MB
  Memory:	8 GB
  Bus Speed:	1.07 GHz
  Boot ROM Version:	MBP52.008E.B05
  SMC Version (system):	1.42f4
  Sudden Motion Sensor:
  State:	Enabled

Attachments:
'sysdiagnose_2016.01.18_21-25-57-0500_98.tar.gz' was successfully uploaded.

Comments


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