Latest post Fri, Dec 14 2018 8:48 AM by BenoitM. 5 replies.
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  • Fri, Dec 7 2018 6:19 PM

    • BenoitM
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    Blackmagic Mini Monitor downscales 1080p50 to 720p50

    Hi All,

     

    Just discovered that in a 1080p50 MC project, the Blackmagic Mini Monitor device outputs 720p50 on the HDMI output. I found no way to force it to output 1080i50 instead.

    I understand it will not support 1080p50, but why does it downconvert to 720p50 instead of 1080i50 ???

    MC 2018.12 (Symphony option)/BCC 10.0.5/RED 5.6; BlackMagic Ultrastudio Mini Monitor (10.11.2.0); DELL Precision 5530 - Intel Core i7-8850H 2.6 GHz - 32... [view my complete system specs]
  • Sun, Dec 9 2018 10:25 AM In reply to

    • BenoitM
    • Top 100 Contributor
    • Joined on Fri, Nov 4 2005
    • Brussels, Belgium
    • Posts 1,174
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    Re: Blackmagic Mini Monitor downscales 1080p50 to 720p50

    On the Blackmagic side, they seem to put the ball in Avid's camp:

    https://forum.blackmagicdesign.com/viewtopic.php?f=3&t=83166&p=461408#p461380

    To avoid misunderstanding:

    With a 1080i/50 timeline, I can output 1080i/50 with the BMD Mini Monitor, as expected

    With a 1080p/50 timeline, BMD Mini Monitor outputs 720p/50 (expected: 1080i/50 or 1080p/25)

    Can AVID confirm this limitation or bug ?

    MC 2018.12 (Symphony option)/BCC 10.0.5/RED 5.6; BlackMagic Ultrastudio Mini Monitor (10.11.2.0); DELL Precision 5530 - Intel Core i7-8850H 2.6 GHz - 32... [view my complete system specs]
  • Tue, Dec 11 2018 9:55 AM In reply to

    • CeeBee
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    • Joined on Mon, Sep 5 2016
    • Posts 21
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    Re: Blackmagic Mini Monitor downscales 1080p50 to 720p50

    I cant confirm this, but i also have a problem, i work in an 4k 25P project, with an Studio 4k. On my hd screen the output is cutted only on the left side. There seams to be a problem with the reformat. The second problem comes back into beeing with the newest driver (10.11.04): When i send my windows workstation in suspend and wake it up, its starts repeating the last audio frame, and do not stop after playing with this behavior- this was cured 2 Years before but now it comes back. Maybe also other people have problems with BM Drivers.
    Cheers C.

  • Thu, Dec 13 2018 10:08 PM In reply to

    • BenoitM
    • Top 100 Contributor
    • Joined on Fri, Nov 4 2005
    • Brussels, Belgium
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    Re: Blackmagic Mini Monitor downscales 1080p50 to 720p50

    BenoitM:

    With a 1080p/50 timeline, BMD Mini Monitor outputs 720p/50 (expected: 1080i/50 or 1080p/25)

    Can AVID confirm this limitation or bug ?

    Marianna, can this be confirmed as "by design" (why ?) or should I fill a case ?

     

    MC 2018.12 (Symphony option)/BCC 10.0.5/RED 5.6; BlackMagic Ultrastudio Mini Monitor (10.11.2.0); DELL Precision 5530 - Intel Core i7-8850H 2.6 GHz - 32... [view my complete system specs]
  • Fri, Dec 14 2018 2:42 AM In reply to

    Re: Blackmagic Mini Monitor downscales 1080p50 to 720p50

    I assume because 1080i/50 is 25 FPS and not 50fps.

    MC 8.6.1, Windows 10, ASROCK X99M, Intel 5930K, Zotac GTX970, 32GB RAM, Transcend 512GB M.2 SSD & Dell U2713H. MBP 2012 Thunderbolt, OSX 10.10.5, MC... [view my complete system specs]
  • Fri, Dec 14 2018 8:48 AM In reply to

    • BenoitM
    • Top 100 Contributor
    • Joined on Fri, Nov 4 2005
    • Brussels, Belgium
    • Posts 1,174
    • Points 14,085

    Re: Blackmagic Mini Monitor downscales 1080p50 to 720p50

    Dom Q. Silverio:

    I assume because 1080i/50 is 25 FPS and not 50fps.

    Agree but (not knowing the internals of the BMD driver or the MC I/O architecture) outputting 1080i50 from 1080p50 project doesn't look more complex (line decimation) than resize to 720 ? Resolve seems to be able to do this with the same hardware (https://forum.blackmagicdesign.com/viewtopic.php?f=3&t=83166#p461380)

    MC 2018.12 (Symphony option)/BCC 10.0.5/RED 5.6; BlackMagic Ultrastudio Mini Monitor (10.11.2.0); DELL Precision 5530 - Intel Core i7-8850H 2.6 GHz - 32... [view my complete system specs]
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