Thank you @wrboyce, I thought it could be helpful to share the stdout from omxplayer, it exits as if everything went ok:
root@dcb0d00:/usr/src/app# omxplayer --display=5 --genlog /home/pi/videos/default.mp4
Video codec omx-h264 width 1080 height 1920 profile 77 fps 25.000000
Audio codec aac channels 2 samplerate 48000 bitspersample 16
Subtitle count: 0, state: off, index: 1, delay: 0
V:PortSettingsChanged: 1080x1920@25.00 interlace:0 deinterlace:0 anaglyph:0 par:1.00 display:5
layer:0 alpha:255 aspectMode:0
have a nice day ;)
root@dcb0d00:/usr/src/app#