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New Mac Pro and Kona Lhi lag

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Olivier AubutNew Mac Pro and Kona Lhi lag
by on Feb 3, 2015 at 8:32:08 pm

Is anyone using Premiere Pro CC2014.1 on a new mac pro with a Kona Lhi?

I'm trying to use my kona Lhi with my new mac pro going through a Sonnet Echo express III expansion chassis. Still on 10.9.5.

The video and audio are playing on the broadcast monitor but it's dropping frames and lags a lot. Everything is set up per Aja's manual.

I'm having the same problem on the Aja T-Tap but not with the black magic mini monitor.

Any Ideas?


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Peter GarawayRe: New Mac Pro and Kona Lhi lag
by on Feb 3, 2015 at 9:24:44 pm

Did you set the Buffer mode to minimum? We also made some improvements in Premiere Pro CC 2014.2. Can you try updating?

Peter Garaway
Adobe
Premiere Pro


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Olivier AubutRe: New Mac Pro and Kona Lhi lag
by on Feb 4, 2015 at 1:52:02 pm

Thanks Peter
same problem on 2014.2. Changing to Minimum doesn't make a difference.

I'm using 2cam multiclips with LUTs applied to Master clips. I'm sure the 8000$ trash can can handle this, right? I'll try to move media on faster drives.


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Olivier AubutRe: New Mac Pro and Kona Lhi lag
by on Feb 4, 2015 at 5:14:27 pm

Drive speed is not the problem.

Anything else I can try?


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Olivier AubutRe: New Mac Pro and Kona Lhi lag
by on Feb 4, 2015 at 7:51:50 pm

Still trying to get this think working, I converted the XAVC 23,98 1080p files to Prores 422 HQ and the problem seems to have disappeared.

Peter, is this a known issue? I was really hoping to work natively with the Sony Xavc files. I was sure I had the hardware for it (3GHz 8-Core, 64GB ram, D700).


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Tom JacksonRe: New Mac Pro and Kona Lhi lag
by on Feb 4, 2015 at 1:33:27 pm

Have you downloaded AJA's most recent driver? Their latest update solved the dropped frames issue for me.


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Olivier AubutRe: New Mac Pro and Kona Lhi lag
by on Feb 4, 2015 at 1:54:59 pm

Thanks Tom

yes, I'm on 12.1 Aja drivers.

What version of OSX are you on? I'm trying to hold off upgrading to Yosemite.

Also, are you using multicam?


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Tom JacksonRe: New Mac Pro and Kona Lhi lag
by on Feb 4, 2015 at 2:07:00 pm

OS 10.9.5. I also quit using PPro 2014 and reverted back to CC 7.2.2. Everything works better and all the audio is now synced. 2014 didn’t allow the offset function to work with my Flanders monitor so the program monitor never synced with the Flanders and my HDMI monitor. But the new AJA drivers fixed the dropped frames issue in playback for both versions of PPro. I don’t use multicam much though and I’m afraid of upgrading to Yosemite so far.

Hope this helps, Tom


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Olivier AubutRe: New Mac Pro and Kona Lhi lag
by on Feb 4, 2015 at 5:10:50 pm

Thanks Tom
the dropped frames only seem to happen on the first couple of seconds after pressing play. And it seems to catch up after a while. Audio never drops.

Thanks for your help


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