Changing POWER_OFF_ON_HALT from 0 to 1 in the Raspberry Pi EEPROM configuration means that when the Pi halts, the PMIC will power off the 3.3V rail, effectively cutting power to most of the board. This setting is useful if you want to completely power down the Pi, including the 3.3V supply, which normally stays on to allow for low-power states and wake-up functionality. After making this change, when the Raspberry Pi halts, it will fully power down, including the 3.3V rail, ensuring that the board is entirely powered off. To restart the Pi, you'll need to physically cycle the power. So how are you going to wake the Pi after that change?
FFS. We're talking about a Pi5.
As I've said above. Both the power button and the PTHoles are connected to the PMIC. Also as I said above, with power to the board the PMIC is still active.
Pressing the power button tells the PMIC to start which starts the SoC etc.
Please, for the love of gods, just try it. I did. The power button worked to start my Pi5.
And, as should be obvious the 5v rail is not produced by the PMIC, it's direct from the input.
Statistics: Posted by thagrol — Mon Sep 02, 2024 9:54 pm
