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+--- Thread: [IDEA] Raspberry Pi 5 - Reducing power wastage (/showthread.php?tid=5928)
Raspberry Pi 5 - Reducing power wastage - Sehnsucht - 11-11-2023
My Pi 5 was always warm even when turned off. Turns out they've gone with a really stupid default which wastes ~1.6W even when not in use. Nice power button, though.
Fortunately you can change this via the pi-eeprom-config tool:
https://www.jeffgeerling.com/blog/2023/reducing-raspberry-pi-5s-power-consumption-140x
Having done this my Pi is dead cold when turned off.
This is something you only need to do once so the eeprom-writing tool doesn't need to be part of moOde; however, it would be pretty handy if it was because otherwise users (who only use their Pi for mOode) are going to have to write and boot into a regular Pi OS just to run the tool.
I mention this because at least one Pi based distro (the retro gaming system Batocera) does not provide this tool (although admittedly they only have a very early beta for the Pi 5 and perhaps this will change).
RE: Raspberry Pi 5 - Reducing power wastage - Tim Curtis - 11-11-2023
I'm not sure what you mean by needing to "boot into a regular Pi OS" since the eeprom tool ships with Bookworm Lite.
Prolly not a good idea to go with the reduced power settings as a default since no one at this time knows whether audio HAT's are affected but it could certainly be a System Config option.
RE: Raspberry Pi 5 - Reducing power wastage - Sehnsucht - 11-12-2023
(11-11-2023, 04:08 PM)Tim Curtis Wrote: I'm not sure what you mean by needing to "boot into a regular Pi OS" since the eeprom tool ships with Bookworm Lite.
Prolly not a good idea to go with the reduced power settings as a default since no one at this time knows whether audio HAT's are affected but it could certainly be a System Config option.
Like I said, the Batocera beta Pi 5 image currently does not include the eeprom tool; if moOde similarly decided not to ship it then booting into a regular/normal/vanilla Bookworm OS once to set the power saving config would be required. Obviously if you ship the tool this won't be a problem. Your response implies moOde will continue to include it (and it's on the Pi Zero W I'm currently listening to) so there's probably no issue here. I just thought I'd mention it so you're aware of the situation.
RE: Raspberry Pi 5 - Reducing power wastage - Tim Curtis - 11-12-2023
Glad you mentioned it.
The power option will definitely be on System Config in our Bookworm release :-)