5 Replies Latest reply on Nov 5, 2018 4:03 PM by johnrellis

    Ligtroom classic CC and high heat


      Hi guys,

      since I bought my macbook pro mid 2014 retina, I noticed quite a difference with my hackintosh running on lenovo laptop.

      I get a lot of CPU usage while only browsing freshly imported photos with sidecar previews and thus fans are spinning on top speeds, which does not stop CPU reaching even 100°C

      Same goes for editing photos, immediately CPU jumps along with fans and heat and keeps that until I stop working on it.

      Before I bought it, it was cleaned from all dust and thermal paste was re-applied, twice.


      Also I noticed that since update to mojave, HW acceleration is terrible, picture brightness jumps while moving mouse (disabling and re-enabling HW acceleraion helps), applying brush is delayed several seconds (not happening while acceleration is disabled) and overal speed is decreasing by every photo I edit. I am using 1:1 previews with smart previews

      Face detection and address lookup are disabled and were always. Tried with disabling sync, did not help.

      Dumping my system info here along with screenshot with temps and CPU percentage that was done by only playing with global exposure setting.


      Probably the only thing I did not try yet is reinstalling whole system

      Snímka obrazovky 2018-11-04 o 18.59.34 (2).png


      Lightroom Classic version: 8.0 [ 1193777 ]

      License: Creative Cloud

      Language setting: sk-SK

      Operating system: Mac OS 10

      Version: 10.14.0 [18A391]

      Application architecture: x64

      Logical processor count: 8

      Processor speed: 2,5 GHz

      Built-in memory: 16 384,0 MB

      Real memory available to Lightroom: 16 384,0 MB

      Real memory used by Lightroom: 5 851,1 MB (35,7%)

      Virtual memory used by Lightroom: 14 411,5 MB

      Memory cache size: 1 073,9MB

      Internal Camera Raw revision: 61

      Maximum thread count used by Camera Raw: 5

      Camera Raw SIMD optimization: SSE2,AVX,AVX2

      Camera Raw virtual memory: 3032MB / 8191MB (37%)

      Camera Raw real memory: 3070MB / 16384MB (18%)

      Displays: 1) 3360x2100, 2) 1680x1050


      Graphics Processor Info:

      Metal: NVIDIA GeForce GT 750M




      Application folder: /Applications/Adobe Lightroom Classic CC

      Library Path: /Users/Matt/Documents/Adobe/Lightroom/Lightroom Catalog-2-2.lrcat

      Settings Folder: /Users/Matt/Library/Application Support/Adobe/Lightroom


      Installed Plugins:

      1) AdobeStock

      2) Aperture/iPhoto Importer Plug-in

      3) Canon Tether Plugin

      4) Facebook

      5) Flickr

      6) MIDI2LR

      7) Nikon Tether Plugin


      Config.lua flags: None


      AudioDeviceIOBlockSize: 512

      AudioDeviceName: eqMac2

      AudioDeviceNumberOfChannels: 2

      AudioDeviceSampleRate: 44100

      Build: 12.1x4

      CoreImage: true





      GL_ALPHA_BITS: 8

      GL_BLUE_BITS: 8

      GL_DEPTH_BITS: 24

      GL_GREEN_BITS: 8

      GL_MAX_3D_TEXTURE_SIZE: 2048

      GL_MAX_TEXTURE_SIZE: 16384


      GL_MAX_VIEWPORT_DIMS: 16384,16384

      GL_RED_BITS: 8

      GL_RENDERER: Intel Iris Pro OpenGL Engine



      GL_VENDOR: Intel Inc.

      GL_VERSION: 2.1 INTEL-12.0.34

      OGLEnabled: true

      GL_EXTENSIONS: GL_ARB_color_buffer_float GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_draw_buffers GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_instanced_arrays GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_provoking_vertex GL_ARB_seamless_cube_map GL_ARB_shader_objects GL_ARB_shader_texture_lod GL_ARB_shading_language_100 GL_ARB_shadow GL_ARB_sync GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_float GL_ARB_texture_mirrored_repeat GL_ARB_texture_non_power_of_two GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_transpose_matrix GL_ARB_vertex_array_bgra GL_ARB_vertex_blend GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_window_pos GL_EXT_abgr GL_EXT_bgra GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_clip_volume_hint GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_draw_buffers2 GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_provoking_vertex GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_specular_color GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_texture_array GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_s3tc GL_EXT_texture_env_add GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer GL_EXT_texture_lod_bias GL_EXT_texture_rectangle GL_EXT_texture_shared_exponent GL_EXT_texture_sRGB GL_EXT_texture_sRGB_decode GL_EXT_timer_query GL_EXT_transform_feedback GL_EXT_vertex_array_bgra GL_APPLE_aux_depth_stencil GL_APPLE_client_storage GL_APPLE_element_array GL_APPLE_fence GL_APPLE_float_pixels GL_APPLE_flush_buffer_range GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_packed_pixels GL_APPLE_pixel_buffer GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_specular_vector GL_APPLE_texture_range GL_APPLE_transform_hint GL_APPLE_vertex_array_object GL_APPLE_vertex_array_range GL_APPLE_vertex_point_size GL_APPLE_vertex_program_evaluators GL_APPLE_ycbcr_422 GL_ATI_separate_stencil GL_ATI_texture_env_combine3 GL_ATI_texture_float GL_ATI_texture_mirror_once GL_IBM_rasterpos_clip GL_NV_blend_square GL_NV_conditional_render GL_NV_depth_clamp GL_NV_fog_distance GL_NV_light_max_exponent GL_NV_texgen_reflection GL_NV_texture_barrier GL_SGIS_generate_mipmap GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod

        • 1. Re: Ligtroom classic CC and high heat
          Ian Lyons MVP & Adobe Community Professional

          Your 'System Info' indicates that you're using a midi controller (Loupedeck?). It may be that the device drivers or plugin are not yet Mojave compatible. Have you tried disabling the midi controller or updating the driver/plugin?


          Some more info at Google Groups

          • 2. Re: Ligtroom classic CC and high heat
            tomasd14643918 Level 1

            I am using open-source MIDI2LR and this problem started immediately after I bought the macbook with high sierra in it at that time and without the MIDI controller. But yes, I tried it one more time to be sure and it hit 100°C anyway. Tried also disabling sync while controller was disabled along with disabling HW acceleration and nothing changed.

            I know macbooks are supposed to run hot, but I don't think it's supposed to jump to 100C after I touch sliders and edit some photos. Also I found some other cases where people started complaining about LR making macs scream after updating to CC, but no real solution was found at that time too, sadly

            • 3. Re: Ligtroom classic CC and high heat
              johnrellis Most Valuable Participant

              Does LR's CPU utilization spike only when you're doing something (moving a Develop slider, scrolling grid view, or exporting), quickly dropping to less than 10% or so when it's idle?  That behavior is as designed for both LR and the Macbook Pro.  In the last few years, Adobe has worked hard to use all of the processors in Develop, including the graphics processor, to make LR as fast as possible, and that generates a lot of heat (especially the GPU).   Macbook Pros can reach 100C very quickly when most of the processors are used for more than a second or so. Most applications don't use the processors anywhere near so intensively, so people generally only observe their Macbook "overheating" when running LR.

              1 person found this helpful
              • 4. Re: Ligtroom classic CC and high heat
                tomasd14643918 Level 1

                Yes, that is correct, it is doing only while I am moving sliders,

                however it still should not be so resource hungry while I am only culling the photos with already generated previews that are part of the RAW image and other programs are showing them as fast as lightroom without overheating and excessive noise, that is what is bugging me probably even more...

                GPU runs fairly cold and doesn't go much higher than on the screenshot, only around 80C which I find normal (not the 100C mark)


                Maybe I am just being picky, but I find it super weird and definitely not very healthy for the CPU

                I wish there was an option to set it somehow to more normal behavior :/

                • 5. Re: Ligtroom classic CC and high heat
                  johnrellis Most Valuable Participant

                  definitely not very healthy for the CPU

                  LR's relatively heavy use of the CPU won't harm it. Intel processors have temperature sensors that automatically reduce their clock rate if they start to get too hot.


                  A few people have experienced bugs where the CPU uitlization never drops even when it's idle -- that's a bug that should be reported to Adobe.