Deploy Bot 00c36b8d7e feat: switch host from intel VirtualHeads to dummy driver for headless boot ...

- Add 20-dummy-headless.conf (Driver dummy, 1920x1080)
- Remove 20-intel-virtual.conf (intel driver required HDMI at boot)
- Update install.sh: installs dummy driver, saves EDID, updates GRUB
- Update README: document dummy driver + kernel EDID fallback approach
- hdmi-fallback.sh now detects DUMMY0 or VIRTUAL1

Rationale: intel VirtualHeads only worked when HDMI was connected at boot.
Dummy driver creates DUMMY0 unconditionally, working with or without cable.
Kernel EDID fallback (video=... drm.edid_firmware=...) is insurance if dummy fails.

2026-05-15 18:12:05 +01:00

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