Am 16. Feb, 2019 schwätzte Brian Cluff so:
moin moin Brian,
Yeah, but can you setup two KDE workspaces to mirror?
Workspace 0: normal desktop
Workspace 1: presentation
workspace 2: presentation
Hmm, even without mirror, pin Hugin to two desktops.
Have two dual desktop workspaces.
-----
|0|1| <- workspace 0
-----
|2|3| <- workspace 1
-----
0 and 1 are one workspace for presentation mode.
2 and 3 are the second workspace for demo mode.
0 gets LibreOffice notes for laptop screen.
1 gets LibreOffice presentation for external screen.
2 gets Hugin, pinned to 2 and 3, for laptop screen.
3 gets Hugin, pinned to 2 and 3, for external screen.
Then during the presentation switch between the workspaces.
Gonna have to experiment with this myself.
ciao,
der.hans
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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