Question - understanding libCEC setup beyond Kodi

[lukjak]

Hello,

My setup: USB-CEC Adapter v2, custom PC, TV, amplifier Software: libCEC 6.0.2, Windows 11 updated Connection: PC -> Amplifier ->TV

My problem: I lack understanding of setup required to set up the following sleeping/standby behavior:

• When PC is working and TV is on, Power button on the TV's remote press should put the PC to sleep, and the PC should put the amplifier to standby (turning TV off when PC is not working is not expected to put the amplifier to standby)
• When PC is sleeping and TV is on standby, Power button on the TV's remote should wake the PC (it already wakes the amplifier now)
• These behaviors should happen regardless of what is running on the PC (Kodi or not)

What works:

• Everything related to CEC works correctly in Kodi (I disabled any CEC signalling on Kodi exit in libCEC preferences, as I don't want any)
• Debugging in cec-tray shows what looks like correct signalling.

Now, I understand that, despite it's name, cec-tray is something to set up behavior only when PC is booted/shut-down plus CEC<>keys translations. NOT something that sits in system tray all the time and does stuff - ?.

Is it the place when I need this EventGhost (it seems to be dead software?), reinstall libCEC to have it install EventGhost plugin and go on in Event Ghost from this point? Wouldn't it (GE) cause conflicts when running alongside Kodi?

Or is there some other way I should follow?

TIA

[lukjak]

Some progress:

• first, cec-tray is missing any help: that makes things more difficult than they should be, really
• cec-tray works only when it's up, it does not save any configuration - each CEC client needs to do setup by itself: https://github.com/Pulse-Eight/libcec/issues/35#issuecomment-62443738 . If I want to use Kodi with CEC, I need to consider only Kodi setup for CEC communications and arrange for cec-tray starting/exiting when needed, so that it does not collide with Kodi.
• Last but not least, some BIOS settings on AMD's AM4 platform disable S3 sleep, so it was not working for me.

The problem remaining:

• when using Kodi, CEC not always kicks in - sometimes it works after Kodi start of waking computer with Kodi on from sleep - sometimes it does not. I'll try to capture logs.