Re: [CentOS] Video projector vs. onboard video card

[Nicolas Kovacs]

Le 23/09/2019 à 14:21, Giles Coochey a écrit :
> If you are not concerned about not being able to dual-screen (i.e. have
> different things displaying on the monitor to what is on the projector,
> then the easiest way is to just get a VGA splitter.

Thanks very much for the detailed information. Just ordered one.

Cheers,

Niki

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Re: [CentOS] Video projector vs. onboard video card

[Giles Coochey]

On 23/09/2019 13:10, Nicolas Kovacs wrote:

Hi,

I have a CentOS 7 desktop client installed on an old Dell Optiplex
computer with an Intel video card integrated into the motherboard. The
card has a single VGA connector, and the 19" monitor is connected to it.

I wonder how I could connect a video projector to this computer while
keeping the monitor, in a mirroring configuration, e. g. output is the
same on the video projector and the monitor.

Do I have to replace my onboard video card by something like an NVidia
GT710 graphic card with two video connectors ? Or is there a different
solution for this?

If you are not concerned about not being able to dual-screen (i.e. have 
different things displaying on the monitor to what is on the projector, 
then the easiest way is to just get a VGA splitter.


https://www.amazon.co.uk/AmazonBasics-VGA-Monitor-Splitter-Black/dp/B06XJNMDBL/ref=asc_df_B06XJNMDBL 



If you do want to dual-screen, you should replace the embedded intel 
with a dual-screen compatible card with the appropriate output 
connectors. This is sometimes useful for presentations, as you can put 
the presentation on the projector and keep presentation notes on the screen.


I think most Optiplex systems support this, things to check:

* Look in the BIOS for the system, there should be a setting about which 
GPU to use, without an additional card inserted in the system the only 
working option here would be something like "Integrated Graphics", but 
when you fit a new GPU to a slot the new GPU will become an option or it 
may allow you to choose a PCIe (or AGP on older systems) - this could 
give you a clue about what type of GPU you need to get.


* Check the form factor (i.e. size of slot & space available) - some 
Optiplexes are small, so you might need a low form-factor card.


* Check slot type, most cards today are PCIe, older models might only 
have a AGP card - which will be harder to find new.


* Check bandwidth of PCIe slot - most whizzy cards need a x16, Optiplex 
might only have a x8 or x4.


--
Giles Coochey

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[CentOS] Video projector vs. onboard video card

[Nicolas Kovacs]

Hi,

I have a CentOS 7 desktop client installed on an old Dell Optiplex
computer with an Intel video card integrated into the motherboard. The
card has a single VGA connector, and the 19" monitor is connected to it.

I wonder how I could connect a video projector to this computer while
keeping the monitor, in a mirroring configuration, e. g. output is the
same on the video projector and the monitor.

Do I have to replace my onboard video card by something like an NVidia
GT710 graphic card with two video connectors ? Or is there a different
solution for this?

Cheers,

Niki
-- 
Microlinux - Solutions informatiques durables
7, place de l'église - 30730 Montpezat
Site : https://www.microlinux.fr
Mail : i...@microlinux.fr
Tél. : 04 66 63 10 32
Mob. : 06 51 80 12 12
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