Monitor problem again Intensity Pro Black magic design

[Jan Franzen]

I duplicated my timeline/project and changed the properties to 1080p instead of 1080i and rendered and the picture quality now looks very good but the strobing phenomena is still there.

[Eric Santiago]

Jan are you running this in Lion?
Just wondering if you got it running on Snow Leopard.
Thanks!

[Jan Franzen]

Yes all the latest.

[Bill Davis]

Jan,

I just want to make sure you’re using the Intensity card to do what it’s supposed to do.

It provides a “broadcast video” signal out. That signal WILL be interlaced. That’s the US broadcast standard period.

If you’re displaying that signal on any monitor that is NOT designed for interlaced display (a computer monitor, for example, rather than a “TV” monitor – you’re feeing the wrong signal to the device.

Broadcast signals interlace two fields to complete a full picture. Computers generate non-interlaced progressive signals.

There’s a fundamental mismatch between the two. Some display devices can switch to or filter and trancode to and from both, but others cannot.

“Flickering” is a typical sign of trying to display an interlaced picture on a screen that expects a progressive signal.

Perhaps I’m misunderstanding you, but it sounds to me like you’re trying to get the Intensity card to drive a progressive computer style monitor and it’s not displaying properly – which would be exactly correct.

Connect the intensity card to an actual broadcast video monitor and you should get a picture that is accurately matched to the signal being presented to it.

(now if the originating signal has problems, that’s another story!)

And if I’m mistaking what you’re trying to describe or how you actually have it setup, sorry.

It’s much harder to “read” about issues and try to diagnose them, than to be in the room with a system and actually see what’s on the screens and what’s happening.

“Before speaking out ask yourself whether your words are true, whether they are respectful and whether they are needed in our civil discussions.”-Justice O’Connor

[Fabrizio D’agnano]

I am experiencing what looks like the same problem. I run an early 2008 Mac Pro. On one partition I have FCP7 under Snow Leopard. On the other FCP X under Lion. The Intensity card is the same, HDMI output directed to an external full HD tv. When I play the timeline from the good old FCP7 everything is looking great, smooth, detailed, in other words perfect, while if I play it from FCP X the quality looks bad and the strobo effect is there as there was some problem with fields or fps, but both the clips and the project are 1080ì, 25FPS. So it does not look like it’s a monitor problem. Latest drivers from Blackmagic, updated OS. I bought the new editing sw as soon as it was on the Store, but so far I can’t still use it.
Regards
Fabrizio D’Agnano
Rome, Italy

Fabrizio D’Agnano
Rome, Italy