Lightroom Classic - MBP 16" idle at 815% CPU

[skyoctane74]

After 2 hours of troubleshooting, Apple support have asked me to put this back out to the community because I have done all the Adobe Lightroom Classic "solved" suggestions and still have the same issue with CPU burning it up in an idle state. 

I have a new, fully spec'd MBP 16" with fresh OS and software loaded. 

* i have reset my preferences 

* i build 1:1 on import so all of that is sorted,

* Lightroom has opened and is idle with fan running hot

* 815% CPU in Activity Monitor

I have no idea what Lightroom could possibly be doing to labour the system so hard, given that it is just open and sitting idle.

I know that there are still a few people that are having this issue with the 16" MBP and Catalina.

Please let me know if you can shed any new light on this. Thanks

[John Waller]

Exactly which version of Lightroom Classic is shown in Help > System Info?

>> * 815% CPU in Activity Monitor

Can you post a screenshot?

>> I know that there are still a few people that are having this issue with the 16" MBP and Catalina.

Any links you can point us to in these forums of posts describing the same symptoms as yours so we can build a pattern of behaviour?

[skyoctane74]

Thanks for your response John. I am using 9.1 (latest)


--

Matt Kemp

[skyoctane74 · Accepted solution]

Hi John,

I had a technician from Adobe remotely fix the issue. They disabled the GPU and made some adjustments to the preview rendering settings. 1:1 previews are not being discarded once built.

They also purged the cache. 

Activity monitor and heat/fan is back to normal 

🙂

[John Waller]

Good to hear. Thanks for the update.