#UDEV  [504.185864] change   /devices/virtual/switch/hdmi (switch)
#ACTION=change
#DEVPATH=/devices/virtual/switch/hdmi
#SEQNUM=1794
#SUBSYSTEM=switch
#SWITCH_NAME=hdmi
#SWITCH_STATE=0
#USEC_INITIALIZED=4180704

SUBSYSTEM=="switch", DEVPATH=="/devices/virtual/switch/hdmi", ATTR{state}=="1", RUN+="/etc/udev/scripts/hdmi.sh"