Skip to main content
Multipasser
Multipasser
Inspiring
March 2, 2018
Answered

Video preview (mercury transit) not working in AE!

  • March 2, 2018
  • 3 replies
  • 6133 views

I'm running a new iMac Pro 10c with a USB-C hub with HDMI out.

The HDMI -> DVI cable goes in my 24inch JVC DT-V24L1D broadcast monitor.

Video Preview out is NOT working in AE, while it works perfectly in Premiere Pro !

And I troubleshooted almost everthing I know.

Reconnected the HDMI, because I've read AE sometimes maps video wrong?

Tried other USB-C ports.

Switching live between Premiere Pro and AE, hoping AE picks up the videolink.

Turned on/off mercury and choosing OpenGL/METAL and Software mode.

Nothing seems to work!

I'm very angry and frustrated because I'm a pro motiondesigner and I bought the 5k JVC screen + 2k blackmagic in 2011.

And AE NEVER ever outputted the preview on external monitor in realtime. Previews were always at 15fps!

Now after so many years and the introduction of USB-C -> HMDI I wanted to give it another shot... grrr still buggy as hell.

I hope someone can help me out, so I can finally start using that JVC screen.

My AE setup.

My Premiere Pro layout. This works perfectly.

It outputs 1080p to my JVC LCD when scrolling the timeline of the clips.

    This topic has been closed for replies.
    Correct answer polonius

    Hi,

    Try dragging the After Effects window away from the edge of your preview screen. I had the same problem and the reason was that my AE window was too close to the edge so that the screen showed me the Ae interface instead of the video preview.

    3 replies

    J
    Jaydude-wb
    Inspiring
    July 20, 2022

    The solution' that was honored as being a correct answer does not work for me.

    Maybe it works in a setup where the HDMI screen is used as an extended desktop.

    But what I need is to output Ae the Comp viewer directly to HDMI, without desktops or windows. Just like Premiere does. 

    In Premiere it is easy to select the second screen in the Playback Preferences, but in Ae, this looks different, and the second screen does not show up at all.

     

    I am on a MacPro 2019 / VegaII / Ae 22.5

    P
    poloniusCorrect answer
    Participant
    March 6, 2018

    Hi,

    Try dragging the After Effects window away from the edge of your preview screen. I had the same problem and the reason was that my AE window was too close to the edge so that the screen showed me the Ae interface instead of the video preview.

      Multipasser
      MultipasserAuthor
      Inspiring
      March 6, 2018

      Damn. I removed my screen and setup. Cannot test right now.

      But for all I know my AE screen is just perfectly 'full screen' on my main monitor.

      YOu have to make it a big smaller?

      Kevin-Monahan
      Community Manager
      Kevin-MonahanCommunity Manager
      Community Manager
      March 14, 2018

      So, you're OK now multipasser? Let us know.

      Thanks,
      Kevin

      Kevin Monahan - Sr. Community & Engagement Strategist – Pro Video and Audio
      Multipasser
      MultipasserAuthor
      Inspiring
      March 5, 2018

      Nothing?

      Terms & ConditionsAccessibility statement
      Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices