Constantly Unable to Mirror

[AlbanRampon]

Hello,

I don't have details of the machine but it sounds like you are using a machine before 5th generation Intel GPU. This is a known limitation which we analyzed in August 2016.
Old Intel graphics driver does not support cloning across graphics adapters because they were not made for Windows 10 and that feature was only made compulsory with Windows 10 (WDDM version).

What you might be doing is install a very old DisplayLink driver (below 8.0) which wasn't designed for Windows 10 Anniversary Update onwards. If that's the case, you are lucky there isn't a new Intel graphics driver as it could prevent your machine from booting.
In the old days, the DisplayLink driver was creating features not available on the platform, because we could. On newer versions of Windows 10, the driver doesn't have the adequate access rights on the machine to do so and we use the recently introduced native support for DisplayLink USB graphics in the OS. The OS uses the standard features delivered by the graphics card.
If you uninstall the Intel graphics driver to use the inbox Microsoft Basic Graphics Adapter driver, you would get the clone feature as well.

After a while, you probably have Windows Update kicking in and then you have the properly tested DisplayLink driver installed to your machine.

Microsoft stated that the solution to this problem is to get a primary graphics card driver which supports cloning across graphics adapters (so a Windows 10 compliant driver).
https://support.displaylink.com/know...rticles/938634

Kind regards,
Alban