Hello I've got a Problem with my Macbook Pro7.1 (16GB Ram, 1TB SSD). Most of the Time (99%) i use it in Clamshell Mode, connected to a HP Display (HP27vx 1920x1080). Everytime i update my Mac, the HP Display is found and i could use it in clamshell mode, but of course i've got no Graphic acceleration. When i run the Post Install patches it Installs Nvidia Tesla drivers. After that, i've got acceleration, but the display is not found in settings (but the display works). When i synchronize i get a very bad resolution (1080). When i use it as a second display, resolution is fine (1920x1080) on the HP display, but clamshell mode doen't work like that (because the HP Display shows only 1/2, the other 1/2 is on the integrated Display). Before Big Sur i used Catalina on this mac (dosdude). On Catalina there was no Problem with the Display in clamshell mode. Everything else works perfect on my Mac with Big Sur, what can i do to solve this Problem? Sorry for my bad english, not a native speaker. Thanks!