@bhepler said in Ghost Overlay / OMXPlayerTransparency:

Video of the ghost in the mirror can be found here: https://youtu.be/6hb1N1tYcPc

As an aside, this morning I changed the command to omxplayer -p -o local --loop --alpha 85 boo.mp4 to cut the sound from the video file. It woke me up when the mirror switched on this morning at 5 AM.

Realy nice solution! Looks awesome!
Could you sum up all the things needed for that?
Reading through this 4 Pages is very difficulty.
Would be very thankful.

Hey!

Deactivate screensaver if not done yet.
That may be a cause.

How do you controll the display? Are you using a command like /opt/vc/nin/tvservice -o and /opt/vc/nin/tvservice -p or just tvservice -o?

And is the display connected via hdmi?

If that’s the case you could try the following:

In /boot/config.txt add hdmi_blanking=1 and reboot. Now try HDMI Output OFF with vcgencmd display_power 0 and HDMI Output ON with vcgencmd display_power 1 instead of the command above.

Descript here. :)