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Da Vinci freezes then crashes

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David Baudry
Da Vinci freezes then crashes
on Dec 16, 2015 at 4:00:17 pm

Hello I was working with a client on da vinci and the it started to freeze each time i press play.
I changed in the pref cpu prices mode and it crashes.
the project is a feature in HD.
I don t know what to do.

latest Resolve 12.1
latest cuda drivers
Imac 27' late 2013
processor: 3,2ghz
32go ram
Nvidia GT 55M
ultra studio mini monitor converting thunderbolt to ski then a FSI monitor
wave panel

Thanx a lot to anyone that could help, I would appreciate a lot the help from Da Vinci Team

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Joseph Owens
Re: Da Vinci freezes then crashes
on Dec 16, 2015 at 6:52:10 pm

[David Baudry] "it started to freeze each time i press play"

Normally I associate this behaviour with overloading the call for data from the source drive or exceeding the VRAM associated with the GPU. You appear to be running a single Graphics card, the iMac internal nVidia GT55M. Are you sure this is not the GT755M with 1 GB of VRAM? If so, this card would be seriously under-powered.

You can correlate your system with the DaVinci Resolve on iMac configuration guide. The information mostly relevant to the late 2012 27" iMac stresses a model with a minimum of 2GB of GPU memory and to make absolutely sure you are running in 64-bit kernel.

If you are using a compressed codec, the CPU can also become seriously overloaded -- even Apple ProRes presents a challenge for a single-GPU system, but RED or H264 would likely exceed the capability of an all-in-one computing platform.

As far as the 2012 iMac is concerned, the official position of BMD is (quoting from the 2013 config guide):
"...provides a flexible and simple desktop workhorse for real time previewing, grading and finishing material up to and including HD. It can also provide a good platform to review and grade higher resolution than HD images which you can render at slower than real time in the iMac. Alternatively use it as a grading station, then move the project to a faster hardware platform such as the MacPro for rendering."


"I always pass on free advice -- its never of any use to me" Oscar Wilde.

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