[Russ Johnson]

Strangely, I didn’t have the Nvidia Driver Manager control panel in my system preferences. As stated earlier I’m on Mountain Lion and I’m wondering if you are on Mavericks and if that control panel is part of that upgrade.

Anyway, I Googled “Nvidia GPU driver for Mac” and was able to download a driver update here: https://www.nvidia.com/object/macosx-313.01.03f02-driver.html Referred to as the Nvidia Web Driver.

That gave me the above mentioned panel and upped my GPU driver (not the CUDA driver) from 8.16.74 310.40.00.10f02 to 8.17.74 (313.01.03f02). The control panel allows selection of the Nvidia Web Driver or the OS X Default driver. It reports that my card is not supported, but CUDA Hardware Acceleration is active in PP and things are better. The end result is better playback and system stability (no more PP CS6 crashes) and I have output to my monitor through the MXO2 mini.

Perhaps there was a mismatch between the CUDA driver and the GPU driver. My card is a “flashed” Macvidcards GTX 480MP and may have something to do with the GPU driver not being updated automatically.

My thanks to Phillip and the hallowed COW, which is a great resource!

Russ 🙂

[Russ Johnson]

Thanks Phillip. I did check that and the card is on the list and I can select CUDA in the PP project preferences. I haven’t tried trashing prefs which used to get things right w/FCP7. I don’t want to have to format and reinstall, but that may be the next resort. FWIW, Media Composer hasn’t hiccuped so far.