[QLab] Adding Usb to VGA adapters to a mac mini

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Ryan Cornelius

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Aug 24, 2010, 11:49:36 PM8/24/10
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Has any one tried adding USB to VGA adapters to a Mac Mini? How stable is it and is there any lag in the video via USB output. Also what is a better hardware setup. Dual 7200 hard drives or one SSD.
Thanks
Ryan


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Paul Gotch

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Aug 25, 2010, 8:00:43 AM8/25/10
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On Tue, Aug 24, 2010 at 08:49:36PM -0700, Ryan Cornelius wrote:
> Has any one tried adding USB to VGA adapters to a Mac Mini?

They are all based on the DisplayLink chipset and don't support either
QuartzExtreme or OpenGL. There are therefore not really suitable for
use as a QLab display screen.

You can of course use both the Mini's outputs for QLab's vdeo display
and use the USB display for QLab itself.

-p
--
Paul Gotch
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ole saustrup kristensen

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Aug 25, 2010, 8:07:59 AM8/25/10
to Paul Gotch, Discussion and support for QLab users.
Den 25/08/2010 kl. 14.00 skrev Paul Gotch:

On Tue, Aug 24, 2010 at 08:49:36PM -0700, Ryan Cornelius wrote:
Has any one tried adding USB to VGA adapters to a Mac Mini?

or - better yet - use the matrox tripplehead..?



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Paul Gotch

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Aug 25, 2010, 8:26:53 AM8/25/10
to Discussion and support for QLab users.
On Wed, Aug 25, 2010 at 02:07:59PM +0200, ole saustrup kristensen wrote:
> Den 25/08/2010 kl. 14.00 skrev Paul Gotch:
>
> > On Tue, Aug 24, 2010 at 08:49:36PM -0700, Ryan Cornelius wrote:
> >> Has any one tried adding USB to VGA adapters to a Mac Mini?
>
>
> or - better yet - use the matrox tripplehead..?

For reference the Matrox thing works by lying about the size of the
screen and using the builtin video chip and splitting it into
multiple outputs. This is more useful as far as QLab is concerned and
people have use them sucesfully in show situations but you get the
video routing limitations because as far as the video card is concerned
it's one screen.

Basically if you more than two independant outputs and QLab's screen
routing to work you need a MacPro with extra video cards.

The other mechanism is multiple minis cued off each other via MIDI over
ethernet. However due to the price increase on the mini it may actually
be cheaper to buy the bottom end Mac Pro with two video cards than buy
two sufficiently beefy Minis.

Ryan Cornelius

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Aug 25, 2010, 10:50:32 AM8/25/10
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Has anyone used the triple head with qlab?

Ryan
Thanks
Ryan

On Aug 25, 2010, at 5:11 AM, qlab-r...@lists.figure53.com wrote:

> or - better yet - use the matrox tripplehead..?
>
>
>

> ole kristensen

Ryan Cornelius

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Aug 25, 2010, 11:30:02 AM8/25/10
to ql...@lists.figure53.com
Never mind found a bunch of examples of triplehead and cue lab. I
think I will give that a try if I don't like using the usb adapter for
the local qlab monitor.
Ryan

On Aug 25, 7:50 am, Ryan Cornelius <r...@icuent.com> wrote:
> Has anyone used the triple head with qlab?
>
> Ryan
> Thanks
>  Ryan
>

Leon Rothenberg

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Aug 25, 2010, 12:17:38 PM8/25/10
to Discussion and support for QLab users.
On Aug 24, 2010, at 11:49 PM, Ryan Cornelius wrote:

> Also what is a better hardware setup. Dual 7200 hard drives or one SSD.

I did a show playing back 32 simultaneous tracks from Ableton Live and we had to go to solid state drives to keep up. If you've got the money for the added expense, they are definitely faster. But if you are not doing a crazy amount of simultaneous track playback you're probably ok with the 7200. I have never run a QLab show off anything else and never had a problem (with drive seek time, anyway)

Leon

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