It's a laptop, so 2 ports on the same card.  Getting the notes on a 
separate display isn't the problem. It's when you go to do a 
demonstration of a different program it's only one one or the other 
screens and I need it to be on both screens.
When I gave my presentation at plug it required to me switch back and 
forth between separate displays and mirrored displays.  A side effect of 
mirroring the displays was that it completely freaked out the 
presentation and required that it be restarted.
Using my Kmag trick you can mirror your local display in a windows on 
the projector display so that when you demonstrate the other software 
you can both see the same thing without having to change your display type.
My original question was to see if there was a better way to do what I'm 
doing using a more purpose built piece of software.

As far a Kmag goes, one nice side effect of using it is that if the 
projector is a lower resolution than your laptop it will pan the display 
around so that you can see the whole screen so you aren't stuck with 
only a partial screen like what happens when you mirror the display, so 
it can be good thing even if your aren't using Libreoffice Impress.

Brian Cluff

On 2/16/19 4:28 PM, Jason Spatafore wrote:
> Brian,
>
> For your dual monitor situation, are you using a single head (1 video 
> card) or dual head (2 video cards)?
>
> Keep in mind I'm talking cards, not ports on the cards. (Video cards 
> can have multiple ports. Mine has 2 x HDMI and 1 x DVI)
>
> Attached is a screenshot using Impress on a single head configuration 
> with dual monitors. Notice one monitor is the actual presentation 
> (right side) and the other monitor is the presenter's screen (left side).
>
> I accomplished this by pressing the F5 key (which is the key to start 
> the presentation).
>
> Now, the reason for the question. When you run a dual head 
> configuration, it gets really tricky to extend desktops between the 
> heads. This gets especially wonky with nVidia cards, and it 
> architecturally makes sense on why there's a limitation (memory 
> space). The only way I've worked around it was to run two desktops, 
> one on each head. And I was only able to accomplish that successfully 
> using XFCE. Gnome and KDE didn't play well with multiple head 
> configurations for me.
>
> I hope this helps. I run Ubuntu 18.04 and the screenshot attached was 
> a default install allowing Ubuntu to set the dual monitor 
> configuration. I can likely exchange some config files with you if you 
> wanted to explore how it self configured. I can say with this setup, I 
> can run steam games on one monitor while watching Netflix on the other 
> (which is the typical style of use for multiple monitors). And as you 
> can see, Impress will allow me to have a presenter screen and slide 
> show screen.
>
>
> On 2/16/19 12:38 PM, Brian Cluff wrote:
>> For those of you that saw my Hugin presentation at last Thursday's 
>> meeting you would have noticed that I had some difficulty switching 
>> back and forth between the presentation and doing a demo of the 
>> software.
>>
>> The reason for this is that I was running Libreoffice Impress in dual 
>> monitor mode so that I can see my notes and the next slide. I could 
>> solve the problem by just mirroring the display, but that causes 
>> problems by eliminating my notes and other resources. There is also 
>> the possibility of using a tablet to control the presentation, but 
>> that might not be reliable at SCaLE when I do the presentation again.
>>
>> So what I need is a way to display a program on both monitors at the 
>> same time without having to mirror the display.
>>
>> I think I might have a workable solution by abusing the kmag program 
>> and setting it's magnification to 1:1, but I wonder if there is a 
>> better or more purpose built solution to accomplish the same thing.  
>> If there is, great, I'd love to hear about it, if there isn't then 
>> this message can serve as a possible solution for others to increase 
>> the quality of their presentations.
>>
>> Brian Cluff
>>
>>
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