I have same problem in generic build.I configure to suspend the device when push power key, then it automatically power off the TV with CEC.
Sometimes, 5 minutes later it power on the device and TV. I don't understand why.
How could I get logs about it?
Regards.
Logs you get when you connect via network browser to kodi device in folder log (takes a whil - creates zips with log files), and maybe in kodi log (should have greatest size) you will find something, but i did'nt find anything there.
TV was off this morning thank you. Hope Milhouse "beta" brings not other suprises