After 3 hours of research at Dell etc. I now turn to you:
- I would like to work with 2 external monitors IN ADDITION to my laptop display
- I can connect both monitors - via VGA and via HDMI output with respective connections on the monitors
- But I can only make two visible via the> Graphics options> Display on…, all combinations, but never all three together
- All three monitors (incl. "integrated display" = laptop LCD) are displayed in the Intel graphics control (Ctrl + Alt + F12)
- my DELL Inspiron SE 7720 has an NVIDIA GeForce GT 650M graphics card in addition to the built-in Intel HD Graphics 4000
Is my assumption correct that I need an external display port, via which the two monitors AND the internal display are controlled?
(I can't find any information about it in the user manual…, not even at DELL)
If so, can someone recommend a cheap solution?
(the second monitor - formerly a good TV screen does not show the full possible Full HD resolution, neither via HDMI nor via VGA)
As far as I have found out, you can only use a maximum of 2 monitors on your laptop without the https://de.wikipedia.org/...ss_Display technology, even if the graphics card actually allows more. This is probably due to the Intel HD Graphics 4000, which no longer allows. The drivers required for Intel WiDi can, however, be installed later.
Here on the pages it is described in more detail how to use 3 monitors:
https://superuser.com/questions/631741/three-monitor-display
https://www.dell.com/...4#U4068927
Thank you for the fast answer!
WiDi drivers are no longer offered, but you can probably use "Miracast" for that - here it says: https://www.intel.de/content/www/de/de/support/articles/000023230/emerging-technologies.html
Unfortunately not applicable for me, as both external monitors do not offer a wireless connection.
But I'm still trying the other options. And reports.
OK
I had also read that at the beginning of 2016 it was announced that WiDi would be discontinued in favor of the Miracast standard, but had thought that the drivers would still be available.
Unfortunately, after studying the solutions intensively, it does not work yet:
To check if your computer's built-in display uses an embedded DisplayPort (eDP) or LVDS connector type:
From the Windows * desktop press Ctrl + Alt + F12 (My note here, this works if you have the Hotkey sequence enabled in the Intel Graphics and Media Control Center) key combination. If prompted select Advanced Mode application mode. Select Options and Support, Select Information Center, Change the System Information drop down to Built-in Display. Check the Connector Type field.
I can't click on the "Advanced Mode" ("this display does not support any advanced settings").
A chance that I saw: NVIDIA control panel, - there in the PhysX configuration all three monitors of the Intel 4000 with the VGA, HDMI and one more? Connection symbol (hexagonal), next to it is the symbol with the VGA connection under the GeForce GT 650M. A monitor is black - the one that is not displayed. Depending on the display setting, another monitor is shown there in black.
In layman's terms - maybe I can assign a monitor to the GeForce and VGA here, then display the other two monitors or 1 monitor + laptop display via the Intel 4000.
But can't be adjusted.
ok, - puff -
I have the info about Intel WiDi and its successor Miracast:
https://www.intel.de/content/www/de/de/support/articles/000021494/emerging-technologies/intel-wireless-technologies.html
found an app called "Remote Desktop Connection" and where should I? Can connect a wireless capable monitor.
Last hope with the existing non-wireless capable monitors:
Can I add a "Display Port" or a USB graphics card to expand my display to a third one?
I was able to download the driver from the Intel support page, but it was not installed… Not compatible (with Windows 10)
I have never used a USB graphics card and therefore have no experience with it.
