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FCPX stuttering since last update. VTDecoderXPCService up to 900% ?

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Oliver Tosh
FCPX stuttering since last update. VTDecoderXPCService up to 900% ?
on Jan 24, 2018 at 8:15:22 pm

I've never had issues with editing on my system. My specs are:

Processor Name: 6-Core Intel Xeon E5
Processor Speed: 3.5 GHz
Dual AMD FirePro D700 6 GB
Number of Processors: 1
Total Number of Cores: 6
L2 Cache (per Core): 256 KB
L3 Cache: 12 MB
Memory: 64 GB
I have 10.13.2 running and FCPX is 10.4

Ever since the latest larger update for FCPX, the video starts to stutter during editing after about 2 seconds. The audio plays through just fine but the video starts to become very choppy. This never used to happen. I started watching the Activity Monitor and notice when I play something in FCPX the VTDecoderXPCService jumps up to almost 900% CPU usage!

I haven't changed any settings in FCPX. Only change was the update. What the heck is happening and how do I fix it?

Much thanks for any help.


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Jeremy Garchow
Re: FCPX stuttering since last update. VTDecoderXPCService up to 900% ?
on Jan 24, 2018 at 9:27:35 pm

Trash your preferences by Holstein option-command and launch FCPX.


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Michael Hancock
Re: FCPX stuttering since last update. VTDecoderXPCService up to 900% ?
on Jan 24, 2018 at 9:44:05 pm

[Jeremy Garchow] "by Holstein"

Pun intended?

----------------
Michael Hancock
Editor


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Jeremy Garchow
Re: FCPX stuttering since last update. VTDecoderXPCService up to 900% ?
on Jan 24, 2018 at 11:41:07 pm

[Michael Hancock] "Pun intended?"

Why, yes! Yes of course! 🐮

Sorry, I meant “by holding” not “by Holstein”


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Oliver Tosh
Re: FCPX stuttering since last update. VTDecoderXPCService up to 900% ?
on Feb 19, 2018 at 8:57:33 pm

Deleting the preferences did not help. Final Cut is almost unusable at this point on my system. After 2-3 seconds the video becomes so choppy that it is almost impossible to edit without pulling your hair out. The audio plays through just fine. VTDecoderXPCService is still running up the CPU and this all started after the last update.

Any other ideas?


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Jeremy Garchow
Re: FCPX stuttering since last update. VTDecoderXPCService up to 900% ?
on Feb 19, 2018 at 10:34:24 pm
Last Edited By Jeremy Garchow on Feb 19, 2018 at 10:43:03 pm

[Oliver Tosh] "VTDecoderXPCService is still running up the CPU and this all started after the last update. "

This usually indicates some sort of transcode.

Do you have Compressor on your machine?

Also, what is in the project? Do you have multicams? Is the preference set to make optimized media on multicams?

Are there any background processes running (hit command-9 to bring up the background tasks window).

Jeremy


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