Hi Thomas,
We got an answer from the Blackmagic guys:
Hi Pep,
Thankyou for your email.
There are no incompatibilities I’m aware of between the HD Extreme 2 and Premiere Pro CS5.5. However we are no longer testing the HD Extreme 2 with new software. But the way each card functions is essentially the same.
There are a few features that the HD Extreme 2 doesn’t have such as 1080p25/30 support, which the 3 and 3D do. But nothing that should cause problems with performance.
If the Source monitor is not outputting, this is likely to be that the default player is not set to Blackmagic. You can change this in Premiere’s Preferences, under ‘Default Player’.
If I can help further, please do get back to me.
Regards
Chris Pearse
Technical Support Consultant
Blackmagic Design EMEA
So the problem definitely is that Extreme Hd and HD 2 don’t support 1080p25/30… If you try with 720 material it works properly but when you try to work with any kind of 1080p footage, such as Alexa or Canon H264, everything goes wrong in Premiere.
Well, at least we know what is going wrong…
Regards,
Pep Collados
onpost.tv