Lightroom: Spontaneous system reboots

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  • Updated 3 years ago
  • (Edited)
I'm using Lightroom CC 2015.8 on OS X Sierra 10.12.3 and running into a problem with Lightroom causing spontaneous system reboots. These are the my typical tasks and up until recently I never had this issue before. I'm on an 2015 iMac 5k with 32gb of ram and AMD Radeon R9 with 4GB VRAM.

The sudden reboots happen fairly consistently (and after every 20 shots or so) whenever I try to generate Standard Previews for batches DNG photos. The DNG photos were previously converted before with Adobe DNG Converter before I had imported them into Lightroom.

And also occurs once I begin upload the multiple photos to my online album from Lightroom via the supported SmugMug service plug-in. 

I've already done the following to troubleshoot...
  • Ran Check/Repair disc 
  • Ran Apple Diagnostic Utility
  • Cleared System Caches
  • Tried performing tasks from a newly-created Lightroom Catalog file
  • Cleared preferences, uninstalled and reinstalled Lightroom
Photo of PixelPusherChicago


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Posted 3 years ago

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Photo of Carlos Cardona

Carlos Cardona

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How did you clear the system caaches? I would try giving it the once over with Onyx (google Onyx Software), just run everything in the Automation tab. Then get Disk Warrior and run that. It comes in a bootable USB stick, but you can also put it on your external utility drive and boot up from that to run it. Also try creating another account and seeing if the same thing happens, then you'll know whether it's something in your account or not.
Photo of Michel DELFELD


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As Carlos, I think your problem is about system caches or ram usage. He gave pretty good tools that I use too. There is an other one that very efficient for a day to day usage, I mean Chronosync 3 (you can find it in the the Apple store) Chronosync has a lot of very efficient tools
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Simon Chen, Principal Computer Scientist

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Sounds like a hardware or system issue.