Should lxdm's Upstart job perhaps be adjusted too? gdm and lightdm both have:
drm-device-added card0 PRIMARY_DEVICE_FOR_DISPLAY=1 or stopped udev-fallback-graphics
... where lxdm has:
graphics-device-added fb0 PRIMARY_DEVICE_FOR_DISPLAY=1 or drm-device-added card0 PRIMARY_DEVICE_FOR_DISPLAY=1 or stopped udevtrigger
... which IIRC is an older form.
Should lxdm's Upstart job perhaps be adjusted too? gdm and lightdm both have:
drm-device-added card0 PRIMARY_ DEVICE_ FOR_DISPLAY= 1 graphics
or stopped udev-fallback-
... where lxdm has:
graphics- device- added fb0 PRIMARY_ DEVICE_ FOR_DISPLAY= 1 DEVICE_ FOR_DISPLAY= 1
or drm-device-added card0 PRIMARY_
or stopped udevtrigger
... which IIRC is an older form.