Librem 14 Failed to charge SOLVED

Hardware
14

Or, a bit more elegantly, echo 90 | sudo tee /sys/class/...

3 Likes
16

Seems everyone has fixes this, so just wanted to share instructions I received from Purism Support…

please install the librem-ec-acpi-dkms package:

sudo apt install librem-ec-acpi-dkms

Then restart and check what the charging thresholds values with the following commands:

cat /sys/class/power_supply/BAT0/charge_control_start_threshold

cat /sys/class/power_supply/BAT0/charge_control_end_threshold

If the value for /sys/class/power_supply/BAT0/charge_control_end_threshold is 0

Then run:

echo ‘40’ | sudo tee -a /sys/class/power_supply/BAT0/charge_control_start_threshold

echo ‘95’ | sudo tee -a /sys/class/power_supply/BAT0/charge_control_end_threshold

All seems to be working fine for me now. I will be curious if he next software update overwrites any of these changes. I’m new to all this, so not sure how it is handled.

10 Likes
17

Also I have noticed that first you have to update charge_control_end_threshold i.e. 95 only then you will be able to set charge_control_start_threshold 90.

1 Like
18

Hi Dean, I updated the coreboot and when I went to update threshold, I got permission denied in the terminal.

FYI - Newbie to linux.

19

Hi Dean, I don’t have the threshold files in my file directory to change. I updated my PureBoot, but when I tried to update Coreboot I got a warning saying that I would lose all of my Pureboot settings. If I choose to update Coreboot, does this mean I lose the functionality of the Librem Key, or can I still be using PureBoot after that? Updating only PureBoot has not given me the missing file.

20

Make sure you follow the sudo tee ... hackery in the post above by @Bass20 : Librem 14 Failed to charge SOLVED

21

I’m on Linux Mint 20.1 Cinnamon, I’m attempting to run sudo apt install librem-ec-acpi-dkms but I’m getting Unable to locate package librem-ec-acpi-dkms. Can someone point me to where I can add the librem-ec-acpi-dkms repository to my machine to be able to download it?

1 Like
22

Hi Kieran, I have ran those commands and hopefully it works now.

Thank for your help.

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23

This is the only real hurdle I see to Linux adoption. Adding repos from other distros, and understanding all that this means is not easy.

Using the Pure OS repo on Mint might break your distro, or upgrade packages to be incompatible with Mint. However, I’m not sure you can add a repo and lock it only one file from that repo?

It would be great if Purism separated Coreboot into its own repo this way, you would have no problem updating it on whatever distro you used. (Perhaps Purism already does this, for this very reason. I don’t know.)

2 Likes
24

How can I check to see what my firmware version is?

25

On Librem 14 | PureBoot Boot Menu go to System Info i get PureBoot-Release-17.1

26

You can use sudo dmidecode: https://www.linuxnix.com/how-to-get-bios-firmware-and-installed-drivers-details/

3 Likes
27

Ah dang, I thought Coreboot was separated out into it’s own repo. Ah well! Would I be able to boot up a live USB of PureOS and update Coreboot that way?

28

You should have a kernel with this version: 5.10.0-7-amd64 at least

This is because the driver is not yet in the Debian repos. We are working on that.
You can get it from here: https://software.pureos.net/package/bin/byzantium/librem-ec-acpi-dkms

But again check your kernel version as well

1 Like
29

You can use this command t check your firmware version:

sudo dmidecode | grep -m1 "Version"

30

How do I check this?

31

You can check System Monitor (or whatever PureOS calls it) in the Menu, or go to the Update Manager and View Kernels (one will be indicated as active/installed/in use, etc.

Or dpkg --list | grep linux-image in the terminal. (That lists all installed.)
uname -r indicates which is active (or uname -mrs)

1 Like
32

Great thank you I’m good then.

33

There is a script that Purism made you can use, which will use wget to pull down the source, and then compile it on your local machine regardless of the distro. Just search ‘coreboot script’ on this forum and you’ll find the thread on it.

34

If you do not have PureOS installed, then boot from a PureOS live ISO with Byzantum:

https://downloads.pureos.net/byzantium/gnome/2021-07-05/pureos-10~devel-gnome-live-20210705_amd64.iso

And folow the instructions here to update Pureboot/coreboot

1 Like