Premiere Pro no output from source panel w/ Blackmagic Decklink SDI 4K
Currently I am running Premiere Pro 2020 Version 14.2.0 (Build 47) and cannot output (Adobe term is transmit) the source panel video or audio via a Decklink SDI 4K to an external HD-SDI monitor.
When the camera original footage is 4K UHD @17196248.98 and the sequence is set to 1920 x 1080 @17196248.98 the source panel video or audio will not transmit to the Decklink.
However if the camera original footage is HD 1920 x 1080 @17196248.98 the source panel video and audio will transmit out of the Decklink SDI 4K.
In either case the program panel (sequence set to 1920 x 1080 @ 23.98) will always output video and audio via the Decklink SDI 4K.
The effect control of the clip loaded into the source panel indicate the scale is at 50%, position 960 and 540 which is correct but the image is incorrectly magnified as the image downscaling is not happening.
In the Premiere Pro preferences Playback menu the decklink card is recognized for both the audio and video device.
The playback setting are as follows:
Checked : pause media encoder queue during playback
checked : enable mercury transmit
audio device : set to Blackmagic playback
video device : set to Blackmagic playback - setup (Contextual menu ) set to
Device : Decklink SDI 4K, For output of unsupported frame sizes: Scale down
checked: disable video output when in the background ( I have this turned on so I can switch back and forth between Premiere Pro and DaVinci Resolve V15.3.1 to release the Decklink SDI 4K to the active application.) Turning it off has no effect on fixing the source panel transmit issue.
When switching to DaVinci Resolve 15.3.1 there are no issues with the same 4K UHD camera original footage playing out on the source or program panels.
Workstation details:
Mac OSX High Sierra Version 10.13.6
Mac Pro (Late 2013)
Processor: 3 Ghz 8-core Intel Xeon E5
Memory: 12 GB 1866 Mhz DDR
Graphics: AMD Firepro D700 6144 MB
Blackmagic Desktop video : installed and tested Versions 11.4, 11.4.1, 11.5.1 none of which fixed the source panel playback issue.
(note version 11.4 listed an Intensity Extreme playback issue fix for Premiere Pro.)
