IMPRESS: Connecting to projector, blank square in projected image?

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gfriedley gfriedley
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IMPRESS: Connecting to projector, blank square in projected image?

I am running Windows 10 and connecting to a projector via an HDMI adaptor. While running a slideshow, I cannot make use of the on laptop screen functionality of seeing the next slide, using the slide timer, etc. In that mode, a blank white square seems to hide most of what I want to project, even though the onscreen image is fine. Is this another known issue? Please advise.
krackedpress krackedpress
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Re: IMPRESS: Connecting to projector, blank square in projected image?


OK, I just rebooted to Win10 to see what is needed for mirrored displays

Are you actually seeing the presentation on the laptop's screen?
If not you need to attach the HDMI cable and then reboot the laptop.  
This will "force" the "Duplicate the displays" option.

If you are seeing less of the laptop's displayed area, then there may be
some issues with the projector resolution is different [less maybe] from
what the laptop has.  That is another reason that I would reboot the
laptop with the HDMI cable.

I know that for a fact of mismatched display resolutions when I was
testing my new projector.  I have a higher resolution on my laptop that
the projector ability to connect to a laptop's HDMI connection, even
less if you use the VGA monitor cable port.

SO, shut down the laptop, plug in the HDMI cable, reboot.  The go to the
Setup's Display section and make sure the "duplicate" option is active.

Hopefully that might help.

  I prefer to use Ubuntu 16.04 and tested all of my optional display
connections to the projector.  Then today I booted to Windows 10 to find
out what the options are in Windows to make it work like it does with
Linux.

The key was matching both displays to the same display resolution or at
least have both displays show the full screen.  I have seen that you can
have your laptop display the full screen on it and the projector was
displaying only part of it.  It is all about getting laptop to display
the resolution that the projector can fully use.

Mu laptop's default display resolution is 1600x900, but the projector
[through the HDMI port] cannot go beyond 1360x768 when connected to my
laptop.  VGA is 800x600.  BUT, connected the DVD/Bluray player will
display the full HD resolution[s].

I hope that might help.
I still am a newbie with a projector.  I just know what works when I was
testing my new projector yesterday evening.

On 03/08/2017 08:38 AM, gfriedley wrote:

> I am running Windows 10 and connecting to a projector via an HDMI adaptor.
> While running a slideshow, I cannot make use of the on laptop screen
> functionality of seeing the next slide, using the slide timer, etc. In that
> mode, a blank white square seems to hide most of what I want to project,
> even though the onscreen image is fine. Is this another known issue? Please
> advise.
>
>
>
> --
> View this message in context: http://nabble.documentfoundation.org/IMPRESS-Connecting-to-projector-blank-square-in-projected-image-tp4209715.html
> Sent from the Users mailing list archive at Nabble.com.
>


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gfriedley gfriedley
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Re: IMPRESS: Connecting to projector, blank square in projected image?

Okay, that makes good sense. My computer is new, and the projector is some or perhaps many years older. Tomorrow, I will try what you have recommended and confirm. Thank you!
krackedpress krackedpress
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Re: IMPRESS: Connecting to projector, blank square in projected image?


This is my first projector, but I have had a lot of experience with
different sized flat screen TVs used a mirrored monitors for
presentations in public areas and meetings. So I knew some of the tricks
that worked for me.

Both this laptop and the projector are new.  Both are under a month old.


On 03/08/2017 01:57 PM, gfriedley wrote:

> Okay, that makes good sense. My computer is new, and the projector is some or
> perhaps many years older. Tomorrow, I will try what you have recommended and
> confirm. Thank you!
>
>
>
> --
> View this message in context: http://nabble.documentfoundation.org/IMPRESS-Connecting-to-projector-blank-square-in-projected-image-tp4209715p4209734.html
> Sent from the Users mailing list archive at Nabble.com.
>


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