Arch Linux

Bahaika

Member

From: France

Registered: 2010-02-11

Posts: 10

ACPI and WiFi error messages at boot

Hi,

when I'm starting my arch I can see this messages when booting up the OS :

acpi PNP0C0B:00: Failed to set initial power state
acpi PNP0C0B:01: Failed to set initial power state
acpi PNP0C0B:01: Failed to set initial power state
acpi PNP0C0B:03: Failed to set initial power state
acpi PNP0C0B:04: Failed to set initial power state
brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Oct 22 2015 06:16:26 version 7.35.180.119 (r594535) FWID 01-e791c176
brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code (0x30 0x30)

But eveything works well (wifi and bluetooth are fine).

I have a Dell XPS 9350, and I followed this wiki page to install it : https://wiki.archlinux.org/index.php/Dell_XPS_13_(2016)

Here is my kernel :

# uname -a
Linux jseban-xps 4.6.0-rc3-mainline #1 SMP PREEMPT Tue Apr 12 22:20:06 CEST 2016 x86_64 GNU/Linux

I tried with the "normal" kernel (4.4.5 form core repo) and I have the same issue.

Any idea why this is happening ?

Last edited by Bahaika (2016-04-12 21:15:43)

bonsairoot

Member

Registered: 2016-04-14

Posts: 10

Re: ACPI and WiFi error messages at boot

I have the same error messages in dmesg.

XPS 13 9350 FHD
Linux 4.5.0-1-ARCH
DE: Xfce4

using xfce power management settings for suspend/hibernate.

jblain

Member

Registered: 2016-05-16

Posts: 8

Re: ACPI and WiFi error messages at boot

Same thing for me

XPS 13 9350
Linux 4.5.0-1-ARCH
Gnome3

Sydius

Member

Registered: 2016-06-30

Posts: 6

Re: ACPI and WiFi error messages at boot

I'm getting these too.

The ACPI errors seem to be coming from the fan driver:

http://lxr.free-electrons.com/source/dr … fan.c#L342

You can see PNP0C0B in that file and line 342 matches the ACPI errors in the journal.

I don't know anything about this code, but the fact that it's related to the fans has me a little bit concerned.

Sydius

Member

Registered: 2016-06-30

Posts: 6

Re: ACPI and WiFi error messages at boot

The ISO3166 error seems to be indicating that the wireless adapter is not reporting its regulatory country (it's passing ASCII "00"?). If I run "iw reg get" I see that it is indeed 00, or unset/global. From a brief Googling, this seems to indicate that the power/channel settings won't be quite right for where I am (the US) and that it could cause connection problems/dropouts.

Sydius

Member

Registered: 2016-06-30

Posts: 6

Re: ACPI and WiFi error messages at boot

Following the instructions here (install crda and iw reg set US) seems to have worked for getting the right wireless bands/frequencies: https://wiki.archlinux.org/index.php/Wi … ory_domain

Sydius

Member

Registered: 2016-06-30

Posts: 6

Re: ACPI and WiFi error messages at boot

After upgrading the UEFI firmware to 1.4.4 (the latest from Dell), the "Failed to set initial power state" errors no longer appear in the journal upon boot. The Broadcom error still happens but doesn't seem to be causing me any issues once I got the region set to the US.