4d4b04d7bb
- Adds VIRTUAL1 as permanent primary output via modesetting driver - HDMI1 set as clone (--same-as) of VIRTUAL1 - hdmi-fallback.sh script monitors drm connector status - systemd user unit auto-creates VIRTUAL1 and switches on hotplug loss - Xorg fallback guarantees 1920x1080 framebuffer without HDMI - Includes xserver-xorg-video-dummy as backup driver