Tablet [Q] me301t omni ROM HDMI not working

Hi everyone
I recently flashed my ASUS me301t with kitkat ROM from omni
Everything was working fine so far but today when i tried to connect my tablet to my living room's LCD with the micro hdmi-hdmi converter nothing happened
It was working just fine before i flashed it

Thanks in advance for the help and thanks xda for all the information you provide us