To simulate a graphics_card/virtual_head? That gives you the full possibilities of your desktop environment to arrange surfaces in relation to each-other, and

To simulate a graphics_card/virtual_head? That gives you the full possibilities of your desktop environment to arrange surfaces in relation to each-other, and place content. Now, true, if you only need to "beam" static images somewhere, there are other options. On any recent distribution, `evdi` should be available through the package manager, even Debian has `evdi-dkms`. And your distribution takes care of signing the module, so that you don't have to disable SecureBoot. (Just need to uncomment the line to enable the module-signing helper.)