On an amd framework 13, I would like to be able to charge my phone when my laptop is turned off (not hibernated nor suspended) via a usb-a slot even if I know that this laptop is not designed to charge external devices.
Inspired by Dell PowerShare : What is the USB PowerShare Feature on Dell Laptops | Dell US
In fact most of the AMD Framework 13 laptops do not support the charging through an external means but there could be amny chances. As for the first solution, the USB hub with a dedicated charging port should be the next port of call if the multiple USB ports charging solution does not yield the desired fruit.
To charge externally you will have to convert the 16V main battery to something else which means there will have to be an active chip monitoring any connection and a programme to see what protocol the requesting device uses QC, PD, PPS etc.
A live 5V USB A requires there to be an active DC to DC converter working permanently. So the laptop could not be off. It’s in effect a sleep state but does not include the OS or RAM etc.
One option is to have a power output of the 16V. I.e. a direct connected to the battery and then use a 12/24V car adapter to charge your item.
I reside off grid and run everything from 12V batteries
Yes. On Think* systems, there’s a yellow USB port exactly made for this; provide 5v USB power to peripherals even when system is off. This behaviour is toggle-able via the BIOS as well.
Next is with CMOS/RTC which uses very little power
Then for a live 5v USB there has to be another chip running etc.
So your definition of powered off isn’t the same as the general idea i.e. 2 above
My Raspberry Pi is the 1. Off is Off with zero power drain.
My alt would be a direct battery connection which uses no power, 16V in this laptop but this is a bit dangerous as the battery could be shorted. Although a fuse could be used to limit the damage.
The definition of powered off in the context of this thread applies and aligns truthfully to the the modern definition of general computing since around 2005. e.g. (Intel ME / vPro…etc)
RTC and EC needs power.
It is your definition of powered off being absolute, which extends to the context of general electronics.
States S1, S2, S3, and S4 are the sleeping states. A system in one of these states is not performing any computational tasks and appears to be off. Unlike a system in the shutdown state (S5), however, a sleeping system retains memory state, either in RAM or on disk, as specified for each power state below in System hardware context sections. The operating system need not be rebooted to return the computer to the working state. System Sleeping States - Windows drivers | Microsoft Learn
Well in the topic I referred too the OP has a problem that under hibernation the laptop will not power off with a bluetooth dongle connected only when it is removed.
So although hibernation is invoked it is really in some sort of sleep as power is kept on the USB. So when the external mouse is moved the laptop wakes.
Now how much power is there on the USB and is it enough to charge a phone ?
Is there power on more that one USB/
I don’t know, just bringing some thoughts together from different people.
In that other topic one user was surprised that I had hibernate working and yet they seemed knowledgable enough for me to engage etc.
Yeah, these days, shutdown isn’t a real shutdown…because Windows can, for example, trigger a wake up (wake timer) to install updates in the middle of the night. It’s bloody annoying. No means no! Off means off!
This might be helpful to the other user (I’m not following the other thread too closely):
I’m not at all convinced it can do that when I hibernate, but it seems that may be overriden by a user option maybe.
I thought you and I already had a disagreement about the laptop being woken, from [power off] so are you saying [power off] can mean different things, even that term you and I talked about.