Lightroom: Crop tool is incredibly slow on retina display. It takes around 15s to finish (Mac)

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  • Updated 4 years ago
  • (Edited)
Working on 22Mpix photo. Simply open a crop tool, make any changes, accept them -> cursor changes to circle and I have to wait for about 15 seconds until the Lightroom starts responding again.

This problem doesn't occur on full HD external monitor.

Computer: MacBook Pro 13" retina, 2013, i5 2.6 GHz, 16GB RAM.

Using CC, newest version of LR available.
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Mojmír Nebel

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  • frustrated

Posted 4 years ago

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Bobby S

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It may be that there isn't a dedicated GPU to process. My understanding is the sequence which the software uses is; the RAM.
Secondarily, embedded graphics versus dedicated GPU. Tertiary is CPU. I was going to get the exact 13" MBP you have until I found out about this.

What monitor are you using and how is it connected?
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Mojmír Nebel

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The problem occurs only on internal laptop display (retina, my resolution is 1680x1050).
If I connect external monitor (1920x1200) via DisplayPort (thunderbolt), it runs quickly.
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Bobby S

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Mojmir, I deleted after rereading your original post, guessing that your using LR from ACC.
Browsing through several forums it looks like your issue is fairly common. It looks as though Adobe isn't supporting Iris Graphics and hasn't for some time. What I don't get is why this is a problem...
When I was looking at getting a new MBP to replace my Mini I read that Intel's Iris Graphics were used for a gaming competition to demonstrate its functionality. Again your talking about the use of an external monitor in some of those cases. It looks like it's just a Retina display issue, another software/hardware conflict I guess.