Multi-Monitor-Problem

[Jörg Barres]

Hi folks,

is the following possible?

Linux Mint with one 17"-Monitor (1280x1024) and one beamer (1920x1080).

I want to mirror the desktop but not loose the 1920-resolution on the
beamer. Instead I want a downscaling for the 17".

Is there a tool?

any hints are welcome,
thanks,
Jörg

[root]

> J??rg

Some NVidia cards allow two different monitor resolutions.
The GeForce GT 1030, for example, supports independent
vga and hdmi resolutions.

[The Natural Philosopher]

Yes, I had reasonable results with Nvidia with two monitors , IIRC one
needed to be VGA.

--
“Those who can make you believe absurdities, can make you commit
atrocities.”

― Voltaire, Questions sur les Miracles à M. Claparede, Professeur de
Théologie à Genève, par un Proposant: Ou Extrait de Diverses Lettres de
M. de Voltaire

[John-Paul Stewart]

On 2022-08-17 10:02, Jörg Barres wrote:
> Hi folks,
>
> is the following possible?
>
> Linux Mint with one 17"-Monitor (1280x1024) and one beamer (1920x1080).
>
> I want to mirror the desktop but not loose the 1920-resolution on the
> beamer. Instead I want a downscaling for the 17".
>
> Is there a tool?

Yes. The xrandr command should do what you want with the --same-as
option (to make the second output a duplicate of the first) and either
the --scale or --scale-from option. I'd start by trying:

xrandr --output <OUT-1> --size 1920x1080 \
--output <OUT-2> --size 1280x1024 \
--scale-from 1920x1080 --same-as <OUT-1>

where <OUT-1> and <OUT-2> are your graphics card's output names for the
beamer and the monitor, respectively. You'll probably have to query
xrandr for the actual names that your system uses.