[MMXT]

Could you confirm if the builds from this post have the problem or not?

With 11,12,13 reverted: No CEC disconnect after turning off TV and no CEC disconnect after switching TV input source (I don't have cable/sat connected, so I tested this by using the TV's internal (crappy) youtube app for a while and then switched back to kodi). So 11,12,13 reverted working fine with newest #0201 release for me. I even did not have to power off from mains, it is working for me right after patching firmware with reverted stuff.

Code:

LibreELEC (community) Version: devel-20170201223352-#0201-g9163913
LibreELEC git: 91639134df74dcca210dc7007b8b35f3787bbaf7
LibreELEC:~ # vcgencmd version
Jan 28 2017 17:55:26
Copyright (c) 2012 Broadcom
version 326ce4379abb2071c0e05ce5fe22ac171a2a2660 (clean) (release)

With 12,13 reverted: CEC working exactly as I wish. Not only does connection exist after switching TV input source or after turning TV off and on, but now my AVR immediately switches back hdmi signal to "kodi" right after I turn on my TV (which always causes a very short audio and CEC disconnect when AVR switches to "Samsung TV" but now it immediately recognizes "kodi" as active source and switches back and that's how it has been before for me).
So 12, 13 reverted working fine for me, even better than 11, 12, 13 reverted I think.

Code:

LibreELEC (community) Version: devel-20170201223352-#0201-g9163913
LibreELEC git: 91639134df74dcca210dc7007b8b35f3787bbaf7
LibreELEC:~ # vcgencmd version
Jan 28 2017 17:15:41
Copyright (c) 2012 Broadcom
version 8ae313f6cbc4b452ccb3b57a0ffc1d6ea434825c (clean) (release)

I think I tried reverted 13 several times during the last days, but I'll give it another try. So here we go...

Code:

LibreELEC (community) Version: devel-20170201223352-#0201-g9163913
LibreELEC git: 91639134df74dcca210dc7007b8b35f3787bbaf7
LibreELEC:~ # vcgencmd version
Jan 28 2017 17:01:24
Copyright (c) 2012 Broadcom
version 843732173c418ad303b7940e1ee92e37d556de8d (clean) (release)

Okay, with reverted 13 same as before: CEC stops working right after signal switch or standby. Same CEC problem for me as unmodified #0201.

I hope this will help to enlighten things a bit.
I am sorry I didn't upload logfiles, but it is very late for me here and during the whole test I didn't check if and if yes, which log level I had activated via config.txt...
I could post some logs tomorrow if this should be neccassary.

Edit: Oops, another release while I was writing. I will update this post as soon as I will test if new release will be working for me out of the box, but I'm not sure if this will be today

@Milhouse @popcornmix
Yes, with #0202 CEC is working fine for me, too AVR keeps focus, TV off/on re-recognizes "kodi", everything fine so far *

*) and I of course mean it is working fine for me without having to use reverted firmware