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XueHai8
Posts: 70
Joined: Mon Jul 24, 2017 12:19 pm

Pi4B - Power light stays on after shutdown

Sat Aug 24, 2019 6:15 am

One of the niceties of the Pi Zero is that when you shut it down,

Code: Select all

sudo shutdown -h now
, it turns all the lights off when its powered down completely: the Red Power light goes out as well. So you KNOW that its really off.

No other Pi models do that, including the new Pi4B.

Just wish it did. Maybe it can be added?
Or its just hardware and can't be changed.

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rpdom
Posts: 17170
Joined: Sun May 06, 2012 5:17 am
Location: Chelmsford, Essex, UK

Re: Pi4B - Power light stays on after shutdown

Sat Aug 24, 2019 6:40 am

What Red Power light? The Pi Zero doesn't have a red LED. Only the Green one.

The Power light on all of the other models can be controlled by software (apart from the original Pi A and Pi B where it was hard wired to the power), but I suspect that the GPIO that drives it might revert to an "on" state when the Pi shuts down.
Unreadable squiggle

drgeoff
Posts: 10765
Joined: Wed Jan 25, 2012 6:39 pm

Re: Pi4B - Power light stays on after shutdown

Sat Aug 24, 2019 7:13 am

XueHai8 wrote:
Sat Aug 24, 2019 6:15 am
One of the niceties of the Pi Zero is that when you shut it down,

Code: Select all

sudo shutdown -h now
, it turns all the lights off when its powered down completely: the Red Power light goes out as well. So you KNOW that its really off.

No other Pi models do that, including the new Pi4B.

Just wish it did. Maybe it can be added?
Or its just hardware and can't be changed.
No RPi model goes off. They stop running but are still consuming some power. The only way to reduce that power to zero is to remove the power feed.

fruitoftheloom
Posts: 23336
Joined: Tue Mar 25, 2014 12:40 pm
Location: Delightful Dorset

Re: Pi4B - Power light stays on after shutdown

Sat Aug 24, 2019 7:23 am

XueHai8 wrote:
Sat Aug 24, 2019 6:15 am
One of the niceties of the Pi Zero is that when you shut it down,

Code: Select all

sudo shutdown -h now
, it turns all the lights off when its powered down completely: the Red Power light goes out as well. So you KNOW that its really off.

No other Pi models do that, including the new Pi4B.

Just wish it did. Maybe it can be added?
Or its just hardware and can't be changed.

https://www.raspberrypi.org/documentati ... /#pi-power
Rather than negativity think outside the box !
RPi 4B 4GB (SSD Boot)..
Asus ChromeBox 3 Celeron is my other computer...

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