Arch Linux

jeko

Member

Registered: 2016-05-08

Posts: 2

ACPI returns bad info

Dear Archers,

I am experiencing an awkward phenomenon with my system.

I first noticed that my battery icon (xfce4) wasn't displaying the right information and wasn't updating.

Then, I look deeper and try to see what "acpi -a -b" gives and I got the same problem as my battery icon.

For example, I turn on my laptop (ASUS 1015PN) on the battery (no AC). When it comes to the desktop the battery icon says "discharging, 100%". Ok for the first info but the second is wrong. Then I plug the AC charger and I still can see "discharging, 100%", there is no update.
From acpi command, I have the same behavior :

~ acpi -a -b                                
Battery 0: Discharging, 100%, 4200:00:00 remaining
Adapter 0: off-line

But my battery is correctly charging when the AC adapter is plugged and is correctly discharging when it is not. So I'm a bit lost right now...

Recently I tried a liveUSB Linux based on Ubuntu and during the live sessions, the battery status seems OK, so my archlinux install is involved.

I would appreciate any help, thank you in advance.

jeko

droppost

Member

Registered: 2016-05-11

Posts: 2

Re: ACPI returns bad info

Hi, take a look at: https://wiki.archlinux.org/index.php/ACPI_modules There Is an ACPI Kernel module for Asus laptops. Find out if it's being loaded at boot and if not, whether loading it fixes the problem.

skunktrader

Member

From: Brisbane, Australia

Registered: 2010-02-14

Posts: 1,543

Re: ACPI returns bad info

I believe a similar problem was fixed in kernel 4.5.3-1

jeko

Member

Registered: 2016-05-08

Posts: 2

Re: ACPI returns bad info

Dear droppost and skunktrader,

Thank you very much for taking time to help me.

The link droppost suggested was already included in my watch list and i didn't see anything missing to my point of view.

So I update my system and with the kernel v4.5.4-1, the problem was solved.

Kindest regards

Last edited by jeko (2016-05-16 15:06:38)