There is no need for "mounting" the projector to a specific VM like when 
mounting USB-devices.

fredag den 13. november 2020 kl. 12.31.24 UTC+1 skrev M:

> I forgot to write:
>
> You just plug the HDMI-cable into the computer and the projector will only 
> show the left part of the desktop, which makes it possible to only show 
> windows on the left side of the desktop on the projector while the right 
> side of the desktop-space is used to only show windows on the PC. In case 
> you don't like this setting, it is possible to change it under "Display" as 
> mentioned above.
>
> And it doesn't seem to matter if you plug the HDMI-cable into the PC 
> before or after starting the projector and PC or before or after login.
>
> fredag den 13. november 2020 kl. 12.15.33 UTC+1 skrev M:
>
>> Thank, you.
>>
>> Yes, it worked without any problems.
>>
>> In case others would like to know, you can go into the Qubes Applications 
>> menu -> System Tools -> Display. Here you can change what shall be shown on 
>> the projector and the resolution of the screen.
>>
>> It seems that the resolution of the PC-screen changes to match the 
>> resolution of the projector. And afterwards it is necessary to go into 
>> "Display" to change the resolution of the PC-screen back to the resolution 
>> that was used before connecting to a projector. 
>>
>> fredag den 13. november 2020 kl. 04.40.09 UTC+1 skrev 
>> sv...@svensemmler.org:
>>
>>> -----BEGIN PGP SIGNED MESSAGE----- 
>>> Hash: SHA512 
>>>
>>> On 11/9/20 11:22 AM, 'M' via qubes-users wrote: 
>>> > Shall I just assign the projector the same way when using 
>>> > USB-devices or how does it work with a external HDMI device ? 
>>>
>>> It should just show up in dom0 as another display. In XFCE you can use 
>>> Settings | Display to configure it or if you are comfortable with 
>>> xrandr you can do it from the console too. 
>>>
>>> The advantage of the xrandr route is that you can have convenient bash 
>>> scripts for different projectors (... different resolutions etc) 
>>>
>>> /Sven 
>>>
>>> - -- 
>>> public key: https://www.svensemmler.org/0x8F541FB6.asc 
>>> fingerprint: D7CA F2DB 658D 89BC 08D6 A7AA DA6E 167B 8F54 1FB6 
>>> -----BEGIN PGP SIGNATURE----- 
>>>
>>> iQIzBAEBCgAdFiEE18ry22WNibwI1qeq2m4We49UH7YFAl+uAAYACgkQ2m4We49U 
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>>> o/uv65mgYI4Wve2yN+YO2ECdk4nsyw9U/DttPVKQtBASrojzGZbWUjoYZysF42nz 
>>> tOwHsWvmYEyNqJiIlzW8VeSg2rtwq+fegzQgKUxLEIvsP/f6pVyibneqAZzSLvmz 
>>> 46EHNxU5+1F9GbstS5eJdIf6KdidAz14gnujQ8mgkobp6hZ8ULGwxOgmd/Zknpq2 
>>> kIzPG+NK25dcrxdpKwClNoGZaXhzkyyEoeadZPQbVQb2xIcfu9w= 
>>> =+5jj 
>>> -----END PGP SIGNATURE----- 
>>>
>>

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