Black Fullscreen Output since Windows 11 Pro update 23H2

[ugopo1]

We are using Resolume Arena 7.19.2 and it alway worked. Since an Windows Update (or else??), there is no Fullscreen Output to both of the 2 extra Displays.
Arena GUI works on the 3d Monitor.
Also the Preview inside Arena is empty (checkerboard). Windowed Mode works, but we need the Advanced Output to 2 different Displays with Mosaics for 2 LED Processors (Novastar).
We tried uninstalling the Graphic Drivers, also Resolume, also updating to the actual Version, no success.
Any Ideas to solve this? We also tried different fixes from the forum (change main monitor, start arena then put it back and start fullscreen, that worked exactly one time, after that samesame)

Windows 11 23H2
AMD 7735H with Radeon 680M
Arena 7.19.2 and also the latest Version.

As i said, the System worked flawlessly for over 2 Years.

Bildschirmfoto 2024-12-03 um [attachment=0]Bildschirmfoto 2024-12-03 um 19.04.08.png

[ugopo1]

found a solution. I suspected the AMD/Radeon Drivers and installed older Drivers from here: https://www.amd.com/en/support/download ... 735hs.html
Version: Adrenalin 24.1.1
fixed the problem. Fullscreen Output and Advanced Output works again.

[Zoltán]

Nice, thanks for sharing!