[Matt Holt]

Will

I heard back from Decklink today and they said:

This is a bug that we have already logged with Apple and should be fixed
within the next few Apple updates. In the meantime, you can just disable
extended desktop from the Multibridge and use your current displays. Simply
go to apple\system preferences\decklink and the box at the bottom for
extended desktop, toggle that to ‘black.’

This works if you do a restart, you won’t see an immediate change unless you shut down and boot up again, although the monitor will switch to black before restart.

lets hope the Apple updates aren’t slow in coming, I’ve got edits to do

all the best

Matt

[Matt Holt]

Hi Will

I have exactly the same problem on a brand new mac and multibridge with the latest blackmagic software.I also use SATA.

I’m away from my Mac at the moment but when I get back to work I’m going to try changing the slot the card sits in.

Did you resolve the issue? I’ve just upgraded from an old G5 2.3 Dual processor and had three blissful years using Blackmagic and 2 mac monitors..I can’t believe I’m having this issue on a newer faster machine.

any advice would be a help, I’ll let you know if a slot change works

Matt

[Matt Holt]

I’ve discovered that this problem seems colour specific.
If I make text animations using After Effects or Final Cut in strong colours such as red or orange I get this liney effect on the FCP timeline.
It gets worse once the clip is rendered on the timeline. The same text animations in white produce clear, crisp edges with no
stepping or blocky edges.

I’m not sure now if this is a preferences or render setting or if it is a draw back with the Pal DV codec. Definitely seems
to worsen on rendering and the fault doesn’t seem to be eminating from After Effects after all.

If anyone else has ever experienced this problem with text I’d be keen to know

thanks

Matt

[Matt Holt]

thanks for the response

I view everything on a Sony Broadcast Monitor via a decklink RGB component for After Effects and FCP. The field order is either off or Lower but the liney alliased text remains.
I think it is a codec issue, something is hapening in the compression. The appearance is not too disimilar to a bad chromakeyed edge when keying using
dv footage, PICT’s of the same text look fine.

Matt

[Matt Holt]

yeah all the settings are set to the ones you describe and I view everything on a Sony Video monitor receiving a component RGB signal from my decklink.
I view my work in After Effects and Final Cut pro this way. It seems to me it’s a problem when it gets compressed into this DV codec, although if I render without fields
in an animation codec it looks just as bad. Something seems to be happening in FCP. I’m running version 5.1 and I can’t remember always having these problems so maybe
it is something to do with the version changes.
I have started to do Text in FCP itself which looks much sharper but I find it not as versatile as my old After Effects way

thanks for the advice though

Matt

[Matt Holt]

I thought about what you said and quickly swapped round the outputs to the monitor to check but the lag was present in
both cases. Decklink seem to think that it’s not a common problem. I have tried this in a dual G4 mac AND a G5 with both final cut 4.5 and 5 but the same thing happens. The lag is only 3 frames for component but it’s way off for SDI from Digibeta

thanks for you help though

[Matt Holt]

I’ve tried all the above advice and no joy, trashing the preferences doesn’t seem to help. I also tried the latest Decklink drivers and changing the Mac from G4 to G5 and using a different scratch drive . If anyone else has anything else to try I’m all ears.

[Matt Holt]

William,

How did you fix the problem? I’ve got the same thing happening with digibeta on sdi and beta on component UVW1800.
I’ve tried trashing the preferences as others have reccomended but no joy.
It would be a great help if I knew what was causing it

many thanks

Matt