HDMI Video after TV power off

Code:

OUTPUT="HDMI1"
BAD_MODE="1280x720"
GOOD_MODE="1920x1080"

for MODE in $BAD_MODE $GOOD_MODE; do
 DISPLAY=:0 xrandr --output $OUTPUT --mode $MODE
 sleep 2
done

Code:

mitchell@liva:~$ mythfrontend --version
xprop:  unable to open display ''
Please attach all output as a file in bug reports.
MythTV Version : v0.27-193-g8ee257c
MythTV Branch : fixes/0.27
Network Protocol : 77
Library API : 0.27.20140323-1
QT Version : 4.8.6
Options compiled in:
 linux profile use_hidesyms using_alsa using_oss using_pulse using_pulseoutput using_backend using_bindings_perl using_bindings_python using_bindings_php using_crystalhd using_dvb using_firewire using_frontend using_hdhomerun using_ceton using_hdpvr using_ivtv using_joystick_menu using_libcrypto using_libdns_sd using_libfftw3 using_libxml2 using_lirc using_mheg using_opengl using_opengl_video using_qtwebkit using_qtscript using_qtdbus using_sdl using_taglib using_v4l2 using_x11 using_xrandr using_xv using_profiletype using_bindings_perl using_bindings_python using_bindings_php using_mythtranscode using_opengl using_vaapi using_vdpau using_ffmpeg_threads using_mheg using_libass using_libxml2
mitchell@liva:~$ 
mitchell@liva:~$ 
mitchell@liva:~$ uname -a
Linux liva 3.13.0-85-generic #129-Ubuntu SMP Thu Mar 17 20:50:15 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux