Sat Jan 26, 2019 9:22 am
I was also looking for the answer to this. What I've done is forget about the Mini monitor for Premiere altogether. Like others have said works great for DaVinci so leave it for that and that alone. My second monitor is HDMI based so my advise is get a great Nvidia video card, which you need CUDA for DaVinci anyway. I have active Display port to HDMI cables going to both monitors which output UHD @ 60p which is perfect.
I am currently using an Nvidia Titan Xp in Mac Pro 2012 os 10.12. So in Premiere select your second monitor (or which ever you're using) in your playback settings as an output monitor instead of the Decklink Mini 4k. This works perfect. I always shoot 2.35:1 aspect ratio and I needed a correct aspect output for clients and this does the trick. Since I always shoot Panavision Anamorphic/Alexa I needed an OLED based system and these TV's can switch outputs. So I select a secondary "Desktop Monitor" for a Premiere output and Switch to a different calibrated input for the Deck Link 4k, when I am doing a color grade in DaVinci. Wish the MIni Monitor 4K worked for both but it doesn't.
It's been suggested to me by BM support to use a 16:9 4K or UHD timeline in Premiere Pro, but performance suffers in Premiere because you're not working within the correct aspect ratio of the files..
Hope this helps.
Video cards I tested that work great for multi monitor setups are Nvidia Quadro P4000 and up, and Nvidia Titan Xp. You could probably get away with a GTX 1080 (for 1920x1080 displays) if you're not pushing dual 4K displays at HDR/10 bit..
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