It might be important to define what we want Roku to do when it comes to "sleep" mode. As I understand it there are a few competing scenarios that play into how the Roku handles a low power or "sleep" state.
The CPU has a low power state that can be triggered manually by the user or automatically by the settings of the software.
Manual trigger events:
User initiating power down of connected devices, which send CEC command to ROKU to power down. Roku is not designed to actually "turn off" so instead the CPU enters a low power state. We see this when the light turns off.
Automatic trigger events:
Scenario 1:
After a user-selected period of inactivity while not playing video, the screensaver is activated. (I've noticed some animated screensavers such as the fish tank do not put CPU into low power save mode, but the Roku digital clock does, which is the screensaver I'm referring to.) In this case, the display of TV is still on, and light on Roku goes out, but digital clock still floats about.
Scenario 2:
After 20 minutes of inactivity when not playing video, as defined by the new setting in 11.5 OS update, the CPU goes into low-power state AND initiates CEC command for connected devices to also turn off.
Some scenarios involve CEC commands and others don't. It seems that there are competing and conflicting (or overlapping) events that cause one event to put Roku into low power mode, and another event to tell it exit low power mode.
To make my life easier, I do not user the always on voice listening on the Roku remote PRO. I have that switch turned off. So it's now always listening for me to say "hey roku."
My desired low power mode based on personal preference is to just go to sleep when I push the power button on the Remote, which initiates an IR command to my Samsung TV to turn off, which in turn sends CEC signals to soundbar and Roku and they both "turn off."
Having the screensaver disabled for me has so far consistently worked. I turn off at night, wake up and check it, and light remains off.
Power down after 20 minutes is enabled, I am using this to replace the screensaver. Should I ever leave Roku unattended not playing video I'd rather it shut everything off after 20 minutes. I do not need the screensaver as this is more power efficient.
I'm sure I'm missing some things and probably got some things wrong. I do hope it helps though. This is just a work around. Roku (should they be reviewing this thread at all) does need to fix this.
