Lightroom 2015.6 crashing on my iMac

  • 1
  • Problem
  • Updated 2 years ago
My (mid-2011) 27" iMac keeps crashing since upgrading to LR 2015.6.  Turns out that my computer has an AMD Radeon HD 6770M that Adobe says is "not supported."  What does this mean?  Has Adobe decided that I don't matter?  I don't think I can change my graphics processor in the iMac.  And, why should I?  Can I go back to the previous update?
Photo of Ridgecrest Photo

Ridgecrest Photo

  • 8 Posts
  • 0 Reply Likes

Posted 2 years ago

  • 1
Photo of Victoria Bampton - Lightroom Queen

Victoria Bampton - Lightroom Queen, Champion

  • 4379 Posts
  • 1602 Reply Likes
Not supported means there's a bug in the graphics card driver and/or it's too old to show any benefits. Leave the GPU unchecked in preferences and see if it continues to crash.
Photo of Ridgecrest Photo

Ridgecrest Photo

  • 8 Posts
  • 0 Reply Likes
It was crashing with the GPU box unchecked (due to the previous problems with the previous update).  I thought maybe that 2015.6 might allow me to take advantage of the GPU performance improvements only to find that my card is not supported.  But, I repeat.  The crashes were happening with the box UNCHECKED.
Photo of Victoria Bampton - Lightroom Queen

Victoria Bampton - Lightroom Queen, Champion

  • 4379 Posts
  • 1602 Reply Likes
Ok, tell us more about what's happening. What are you doing when it crashes? What exactly happens? Is the crashing new to 2015.6? You mentioned you had problems with the previous update - what were they?
Photo of Ridgecrest Photo

Ridgecrest Photo

  • 8 Posts
  • 0 Reply Likes
Two crashes (brand new to 2015.6) started happening this week when I was importing images from the desktop and I would get the spinning beachball.  It never went away so I had to do a force quit and then reboot.  This happened twice in one session and was very frustrating as I was working with a client.  Another situation was when I was working in the Develop module.  My reference to problems with the previous update was in reference to LR's comments that it had sped up the process by allowing the use of GPU chips.  However, in my case, again, there seems to be some sort of "bug" in my chip.  So, my system didn't speed up.  It slowed down.  Maybe it is all due to this incompatibility between LR and the AMD Radeon chip in my mid-2011 Mac.
(Edited)
Photo of Ridgecrest Photo

Ridgecrest Photo

  • 8 Posts
  • 0 Reply Likes
Just crashed again.  This time I paid attention.  My computer was in a screen saver mode and I woke it up to import a picture from my desktop into LR.  When I tried this, the system locked up.  And, Dr. Cleaner told me that my RAM usage was over 14 GB (I have 16GB).  I have an external HD connected and suspect that somehow it had not spooled up and that this was the cause of my crash.  I keep sending error reports to Apple but I never know what they do with those. 
Photo of Victoria Bampton - Lightroom Queen

Victoria Bampton - Lightroom Queen, Champion

  • 4379 Posts
  • 1602 Reply Likes
That's very interesting. There's a possible high memory usage bug that's being investigated. I've seen it twice, but haven't managed to reproduce it on demand. On both occasions I've seen it, Lightroom has been ideal.  Do you sync photos to the cloud?  Might it have been doing anything when you were away from the computer?
Photo of Ridgecrest Photo

Ridgecrest Photo

  • 8 Posts
  • 0 Reply Likes
No cloud syncing (not of LR files anyway).  I can hear my external HD spin up when the computer comes back from the screen saver.  I stopped the screen saver, opened LR and immediately went to the Import and that's when the beach ball showed up and wouldn't go away without a force quit.  I don't remember it doing that before the latest upgrade...but it could just be a coincidence.
Photo of Ridgecrest Photo

Ridgecrest Photo

  • 8 Posts
  • 0 Reply Likes
I also remembered another weird problem I think happened after the upgrade.  I shoot with the Sony a7rII which produces 42MB files.  Recently, I've tried to use LR's ability to create a panorama (rather than going to Photoshop) and LR just didn't work.  It ignored me.  That was weird.  But, combining 5 images creates a total TIFF of approximate 2GB so I sort of doesn't surprise me that my 5 year old computer might be struggling.
Photo of Ridgecrest Photo

Ridgecrest Photo

  • 8 Posts
  • 0 Reply Likes
My system locked up again this morning.  Again, it was after I tried to do an Import.  My RAM Usage went up to 13.1 GB (I have 16 GB installed) and then LR just froze.