I just had a look at the "tweaks" in pCP and (simplified) it installs
rpi-vc.tcz (if not already installed)
and then uses
tvservice -o
to turn off the HDMI
however, while that works fine when the "on" process requires a reboot
it is probably not OK for the situation you describe.

You probably need to run
vcgencmd display_power 0
and then
vcgencmd display_power 1
to turn it back on again when the player is turned on again.

(I have not checked but rpi-vc.tcz might contain vcgencmd)

So - try that from command line (once the tcz is installed) and if it
does what you want then the next thing to work out is how to launch it
on the power off/power on operation of the player ...



Paul Webster
http://dabdig.blogspot.com
author of \"now playing\" plugins covering radio france (fip etc), kcrw,
supla finland, abc australia, cbc/radio-canada and rte ireland
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