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Re: Premiere Pro 9.2 & Graphics card CUDA problems, video goes black! Poof!

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Tom Laughlin
Re: Premiere Pro 9.2 & Graphics card CUDA problems, video goes black! Poof!
on Apr 15, 2016 at 4:15:26 pm

I was able to get this computer problem solved, along with using some of the suggestions, you all mentioned here. So here's what we found:

With the GTX-120 and the GXT-780 still inside theMac:

1. Even for a 12-core, 3.33GHz, 64GB Ram, Mac Pro, when editing, we found that it sometimes strugged with edting or moving large graphics around, we are talking a logo that a cleint sent over that is 600dpi, with a resolution of about 6K, something like 5800x3400, some insanely high resolution, and as a .png file, that may not have helped out as well. The graphic was clearly causing Premiere to choke, not giving it enough time to cache the file, so every 2-3 minutes into editing, the video playback would be lost. This did not happen with any 4K .mov files, so we isolated the first problem - relating to the graphic.

2. We also noticed that the macPro DID have the most current CUDA driver. But, the MacPro DID NOT have the "NVidia Driver Manager" installed, which actually talks to the CUDA and Mac, and ensure they are working properly. CUDA driver alone, will not help, I needed to install the "NVidia Driver Manager", which also makes it so your mac can talk directly to the NVidia card, and stabilizing it's usage and over-all performance. Once installed, a new icon shows up in the System Prefs, as well as on the upper right hand side, and you can open the "NVidia Driver Manager", and set your Mac to Run on the Nvidia card "properly" - with Premiere Pro. Upon opening the new app, we set the Preferences to "Nvidia Web Driver", instead of the "OS X Default Graphics Driver".

3. We also yanked the GTX-120 out of the MacPro, which was drawing power away from the GTX-780. Having two cards running on the same driver, both fighting for usage and power and ampage rights, we immediately also saw that the Mac's performance editing in Premiere, helped out a ton.

4. Lastly, to ensure the GTX-780 was being used, we not only connecting both monitors to the GTX-780, but we also made sure that we took the huge graphics, and scaled them down in Photoshop to a 1080p sizing, with a 72dpi, more screen friendly and graphically LESS intensive and straining on the MacPro.

With all these fixes, the MacPro has not lost any playback, for about a week, so far, all is well, and the Mac is stable.


Tom Laughlin
Digital Chop House
Salt Lake City, Utah

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