Trying to feed an external EDID for i915 to facilitate headless operation on an
Intel NUC resulted in repeated warnings

Feb 17 08:47:38 localhost kernel: ------------[ cut here ]------------
Feb 17 08:47:38 localhost kernel: i915 0000:00:02.0: drm_WARN_ON(len <= 0)
Feb 17 08:47:38 localhost kernel: WARNING: CPU: 7 PID: 90 at
../drivers/gpu/drm/i915/display/in>

and a non-working display.
(Arguably the display doesn't work as it's headless, but the vncviewer for
Intel AMT stays blank, too. It doesn't when a monitor is connected.)