<div dir="ltr"><div class="markdown-here-wrapper" style=""><p style="margin:0px 0px 1.2em!important">On Mon, Oct 19, 2015 at 1:28 PM Rick Clever via Stagecraft <a href="http://mailto:stagecraft@theatrical.net">stagecraft@theatrical.net</a> wrote:</p>
<p style="margin:0px 0px 1.2em!important"></p><div class="markdown-here-exclude"><p></p><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">So if I have an HDMi out on my macbook and a thunderbolt port, can I<br>use a thunderbolt adaptor to send to another monitor? For instance<br>hdmi port to a sdi converter for one projector and thunderbolt port to<br>hdmi out to another projector. </blockquote><p></p></div><p style="margin:0px 0px 1.2em!important"></p>
<p style="margin:0px 0px 1.2em!important">Yup, you can indeed. They’re two completely independent video outputs. Subject to the final resolutions, and what your graphics card is actually capable of pushing out them, but as a general concept, and for all but the most extreme resolution needs, yeah.</p>
<p style="margin:0px 0px 1.2em!important"></p><div class="markdown-here-exclude"><p></p><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">Do they even make thunderbolt to sdi?</blockquote><p></p></div><p style="margin:0px 0px 1.2em!important"></p>
<p style="margin:0px 0px 1.2em!important">Yes, but….see my next answer </p>
<p style="margin:0px 0px 1.2em!important">On Mon, Oct 19, 2015 at 1:43 PM Brian James via Stagecraft <a href="http://mailto:stagecraft@theatrical.net">stagecraft@theatrical.net</a> wrote:</p>
<p style="margin:0px 0px 1.2em!important"></p><div class="markdown-here-exclude"><p></p><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div>Never used it, but does this meet needs?</div><div><br></div><div><a href="https://www.aja.com/en/products/t-tap" target="_blank">https://www.aja.com/en/products/t-ta<br>p</a></div></div></blockquote><p></p></div><p style="margin:0px 0px 1.2em!important"></p>
<p style="margin:0px 0px 1.2em!important">So, here’s the thing. There are two types of things that can connect to a Thunderbolt port:</p>
<p style="margin:0px 0px 1.2em!important">1) A Mini DisplayPort to <em>__</em> video adapter<br>2) Any of a bazillion Thunderbolt devices, which are basically external PCI devices, to oversimplify quite a bit.</p>
<p style="margin:0px 0px 1.2em!important">Type 1 will work with QLab, with no additional processor overhead. These can be passive or active, and are usually found in composite, VGA, DVI, and HDMI flavors. I don’t know of any that are SDI, as that’s a different scale of conversion. These devices connect straight to the graphics card, and show up as a display to the OS.</p>
<p style="margin:0px 0px 1.2em!important">In type 2, there are a number of devices that provide SDI outputs. These do NOT  have dedicated GPU connections, and do NOT show up to the OS as a display, and require dedicated drivers. They need to be explicitly supported by software and will always have a heavier processing overhead, since the graphics are rendered in the GPU, but then need to get passed over to the output device, which involves some CPU lifting and another trip through RAM. </p>
<p style="margin:0px 0px 1.2em!important">Among these, BlackMagic are the only ones supported by QLab. Aja makes fantastic devices, but their Thunderbolt gear is not compatible with QLab.</p>
<p style="margin:0px 0px 1.2em!important">Now, you can, as I mentioned, use an outboard converter to convert the output of a device of the first type to SDI. Aja and Blackmagic both make such SDI converters, both of which are wonderful, and both of which will work with QLab, since QLab doesn’t particularly care what you do with the signal after it exits the computer (so long as there’s correct EDID/DDC data presented to the computer. If that’s blocked, or otherwise mucked with, things can get iffy. Aja and Blackmagic stuff should be fine, it’s cheap gear like KVM extenders and switchers that don’t explicitly manage EDID/DDC that you need to be wary of.</p>
<p style="margin:0px 0px 1.2em!important">Hope that helps!</p>
<p style="margin:0px 0px 1.2em!important">-Andy</p>
<p style="margin:0px 0px 1.2em!important">—<br>Andy Lang<br><a href="http://twitter.com/SoundGuyAndy">@SoundGuyAndy</a><br><a href="mailto:support@figure53.com">support@figure53.com</a></p>
<div title="MDH:PGRpdiBkaXI9Imx0ciI+T24gTW9uLCBPY3QgMTksIDIwMTUgYXQgMToyOCBQTSBSaWNrIENsZXZl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" style="height:0;width:0;max-height:0;max-width:0;overflow:hidden;font-size:0em;padding:0;margin:0">​</div></div></div>