I've been using FCPX on an Early 2008 MacPro and when I try and push 1080p H.264 through my Kona 3 I'm getting dropped frames.
The A/V Output tab matches the Kona setting (1080i29.97 on both). Media is playing off a RAID with reads of over 200MB/s. 24GBs RAM, latest version of Mac OS, AJA driver, FCPX
If I TURN OFF A/V Output and playback full screen on the second computer monitor, I have no dropped frames (I can play back non-rendered dissolves). The whole interface seems more responsive.
I've contacted AJA and they could not find a solution.
Is this an example of the Kona 3 not being powerful enough to handle the H.264 playback? Would a new AJA product be able to make this possible (I don't have Thunderbolt though); how about Matrox or Black Magic?
I tend to work on projects with large amounts of footage, so if I could do a rough edit with the camera native clips before I transcode, and then just transcode what I need I would save a lot of time/ HD space.
2 x3Ghz Quad MacPro
9 GB RAM
Mac OS X 10.5.5
AJA Kona 3 (6.0.1 drivers)
G-Speed XL 12 RAID