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Dropping Frames with DeckLink Extreme 3D+ in FCP 7.
Note: I have submitted this to tech-support but so far I have heard nothing other than it’s a throughput issue (hard drives) which it is almost certainly not.
Recently I replaced my Kona 3 with a Blackmagic DeckLink Extreme 3D card as part of an upgrade to a DaVinci Resolve. System also has an expansion chassis with 2 X GeForce 680 cards. Running the latest drivers for NVidia and Decklink, Resove 9.
The issue: FCP 7 is now consistently dropping frames, something it has never done before. Having run Speed Disk several times to our SAN, I can assure that this has nothing to do with drive speed bandwidth.
To try and trouble shoot this, I first disabled the NVidia drivers and disconnected the expansion chassis, eliminating the 680 cards from the mix. Same issues. I did notice that it seems to have more issue dropping frames on low quality ProRes (74.84 Mbit/s) vs. Uncompressed YUV 10-bit media (1.06 Gbit/s). My Speed Disk tests have constantly returned write/read rates of 558 MB/s and 629 MB/s respectively.
Next I tried uninstalling the Blackmagic drivers and bingo… frame dropping stopped altogether, regardless of format. Unfortunately this also eliminates my video out in Resolve which is not going to work.
Anyone having similar issues?
OSX 10.8.2
Blackmagic v. 9.6.4
FCP v.7.0.3Thanks in advance!
bk
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35 Replies
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Update… Disabling audio out on the Blackmagic card seems to stop the drop frames issue in FCP 7, but creates another one: out of sync audio!
See this thread, others are having this issue: https://forums.creativecow.net/thread/8/1164660#1166253
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As an update to anyone following this thread, we have reproduced this issue in our lab and logged it for investigation.
Regards,
Sarah
Support Representative
Blackmagic Design Inc. -
Brandon,
Have you been able to resolve the issue. We just put in a new system with the BM Decklink Hd 3D+ etc. and are experience dropped frames with the 9.6.8 drivers (posted by BM support on Nov 8, 2012)
I haven’t gotten a response from Blackmagic, but I did get a nice reply telling me what dropped frames are.
Scratching my head.2x 3.06 6 Core Intel Xeon
24 GB 1333 MHz DDR3
240 SSD (with trim enabled) -
I got a response from what seemed like “level 2” support… but no resolution yet. I heard from someone with more direct links into BMD tech support that they are working on it.
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Hi Sarah,
I’m just wondering if there has been any progress solving this issue? I currently have a work around for presentations with clients but ideally would like to be able to get the Decklink card working with audio as soon as possible for outputting.
Thanks,
Adam White -
Add me to the list.
Just installed a Decklink 3d+ on a Mac Pro 5,1. This was replacing a Kona3g that was experiencing no dropped frames. Now I can’t play ProRes 422 HD without dropping.
I’m using driver 9.6.9.
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Just wanted to add…
My case is exactly the same (but with drivers 9.6.9). If I turn off the BM audio, the video plays fine. Turn the audio back on, the dropped frames return.
Mac Pro 5,1
OSX 10.8.2
Blackmagic v. 9.6.9
FCP v.7.0.3 -
I certainly don’t want to speak for BMD support, but I did hear back from them recently regarding my support ticket on this topic and they do not have a solution citing inconsistant results while testing. They said that with our without BMD hardware some Mountain Lion machines are working just fine with FCP 7 and others have issues. They said it was still open on their end but based on results so far it might not be something they can fix.
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Hmm, I think I’ll try booting to a previous OS just for kicks. I’ll definitely open a support case, also.
Thanks.
Mac Pro 5,1
OSX 10.8.2
Blackmagic v. 9.6.9
FCP v.7.0.3 -
please post back on how a non-mountain lion OS reacts. I am unfortunately hamstrung if I want my CUDA cores working but it would be nice to know all the same.
bk
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