mglae, thank you very much for the information.
i have found a better solution, sadly I didn't have this idea much earlier.
Logitech has a own profile for zotac zbox for the logitech harmony. this profile works perfect out of the box. starting or shutdown my system is not a problem anymore.
before:
- starting pc with pressing his power button at front or use wake on lan
- then start all other devices (av-receive with correct input and tv with correct input) with the harmony, this must be done a few seconds later after starting the pc
- if too late, the pc was already done, gets the power signal from remote and turns off, or he didnt get hdmi signal from av-receiver and this turns into audio/video issues
> solution, turn on av-receiver/tv first, then start pc > all ok
- but this was not a solution for my girlfriend, one time she makes the correct sequence sometimes not > result in several on/off cycles for the devices (thats why i search for disabling power off the pc with remote)
NOW:
- simplye ONE button press on the logitech harmony, all devices start in correct sequence > HAPPPY
- beforce i know the zotac logitech profile, starting pc with remote was not possible