[CentOS] Monitor Dummy Device

Joey wrote:
>
> Am 20.01.2016 um 15:07 schrieb Jonathan Billings:
>> On Tue, Jan 19, 2016 at 10:49:31PM +0100, Joey wrote:
>>> i try xephyr/xnest, but i dont recognize how i can use a nested display
>>> like
>>> a second screen.
>> I guess I still don't understand why you need a second, virtual
>> screen.
>>
>> Every projector I've ever used appears as a second screen on my linux
>> desktop, and I have the choice to either mirror my display or expand
>> my desktop across both.  If you choose the second option, you can put
>> your projector content on the projector, and keep your laptop's
>> display for notes.
>>
>> Does your projector not do that?  I don't understand the situation
>> where you need to use a second computer and ffmpeg streaming.
>>
> Yes, with a cable connect it is possible, of course.
>
> But i dont like it to be restricted in my movement by wired to a
> hdmi-cable.
> :-)

You walk around with a laptop during a presentation?

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