LR deliberately uses as much of your CPU as possible when rendering raws and merging into HDRs and panoramas. The CPU usage go back down when I’m not doing anything in LR. I used Activity Monitor to see the CPU Lightroom CC is using, and it spikes up to 1291% ! When open LR CPU is 216% and with HDR rendering 5 RAW pictures it’s above 1000% CPU and the temperature peaks at 101☌ when measuring with Intel power gadget. Radeon Pro 560X 4096 MB/ Intel UHD Graphics 630 1536 MB.I'm running LR on a Macbook Pro 15" from 2018: Someone that know what's going on? I bought this new Macbook to work with a silent computer due to a head injury that make my brain very sensitive to sound and I can't stand this fan noise!Īccording to Apple suport the problem lies with Adobe and according to Adobe suport the problem lies with Apple… Is it a hardware malfunction or is Lightroom CC version 7.5 not compatible with my MacBook Pro? Something is causing the CPU to work hard when I open LR. I know that Lightroom CC is an intensive program, but just scrolling through photos shouldn’t do that, right? For example on my old Macbook pro 13” mid 2014 the fan only ran when I was doing ”hard work” like HDR rendering. Adress lookup and Face recognition are both disabled.LR is not generating previews in background.The laptop is on a flat surface with nothing obstructing the air inlet/outlet openings.Resetting the SMC and NVRAM did not helped. ![]() I used Activity Monitor to see the CPU Lightroom CC is using, and it spikes up to 1291%! When open LR CPU is 216% and with HDR rendering 5 RAW pictures it’s above 1000% CPU and the temperature peaks at 101☌ when measuring with Intel power gadget. It doesn’t need to be ”hard work” like HDR or editing, only normal usage when I’m scrolling trough my DNG photo's in the library module. ![]() The fan runs almost continuously after I open Lightroom CC and start to look at pictures. When I'm running Lightroom Classic CC version 7.5 on my brand new MacBook pro 15” 2018 the fan speed get extremely high.
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