I'm trying to connect a second screen, however, Windows 11 seems to recognize the screen, but says it's "not active" hence there is no output on the display. The display itself just wakes up for a second and then says it's going into energy-saving mode.
My display is a Dell U2711 and it's connected via a Displayport to USB-C cable to my notebook.
Notebook is a Dell Precision 3571 which has an integrated graphics card (Intel Iris Xe Graphics) as well as a dedicated one (Nvidia RTX A1000). From my understanding it uses the Intel graphics card for displaying non 3D stuff.
I'm using this cableI already tried another monitor using the same cable and it yields the same results. So I'm really suspecting some driver issue, maybe with the thunderbolt ports?
Everything works over HDMI. I tried 2 different cables, which had no effect. And I tried an alternative notebook (older Dell) which worked.
I had this problem some weeks ago, and a restart fixed it. Today I installed a directx update and windows update and since the last restart I got confronted with this problem again.
Any hints on solving this problem? I'm happy to provide more details (does dxdiag output help?).
This is how it looks like in the intel driver:
I can try to activate it via the 3 dots but it doesn't work.
And this is in the display settings of Windows:
Device manager shows:
If I connect the same monitor via HDMI as well, it shows the display twice. I can't really tell any difference between the 2 when I look at their properties.
Display Adapters: