Arch Linux

Ocypheum

Member

Registered: 2015-09-26

Posts: 58

[Solved] (WW) Open ACPI failed in Xorg.0.log

I was just inspecting my X log (Xorg log? Xserver log? whatever) and noticed a couple warnings:

$ grep "EE\|WW" .local/share/xorg/Xorg.0.log 
[    31.702] Current Operating System: Linux arch 4.2.5-1-ARCH #1 SMP PREEMPT Tue Oct 27 08:13:28 CET 2015 x86_64
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    31.903] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[    31.903] (WW) Disabling Mouse0
[    31.903] (WW) Disabling Keyboard0
[    31.920] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[    32.125] (WW) VGA arbiter: cannot open kernel arbiter, no multi-card support

I'm not really worried about any of these, but am curious about the ACPi failed warning. The only info I can find is from 2009-2010, for example here, which recommends editing rc.conf, which I don't have, because systemd replaced it (I think).

After reading up on acpid, I'm not sure if I really need it. My power button works, my lid works, and I just got my hotkeys working with xbindkeys. Is it preferable to use acpid for these things? Or should I just ignore the warning in X log?

Last edited by Ocypheum (2015-11-18 00:19:38)

olive

Member

From: Belgium

Registered: 2008-06-22

Posts: 1,490

Re: [Solved] (WW) Open ACPI failed in Xorg.0.log

acpid is a daemon that reacts to acpi related change and behave accordingly (by calling a script with the events as parameters/environment variable). For example, you might want to change the cpu frequency when you are on battery or on AC (I don't think this is the default behaviour of acpid but you can do that if you want). But systemd takes in charge the most essential part of acpid. So for system, like Arch, that use systemd, acpid is not essential anymore. I think you can ignore the warning, like I do.

LCvanDinteren

Member

From: Netherlands

Registered: 2015-10-27

Posts: 153

Re: [Solved] (WW) Open ACPI failed in Xorg.0.log

Have you installed and enabled acpid?

olive

Member

From: Belgium

Registered: 2008-06-22

Posts: 1,490

Re: [Solved] (WW) Open ACPI failed in Xorg.0.log

Have you installed and enabled acpid?

If you read his post, the answer is clearly no. But his question was if he really needs to install it. I personally think not.

Last edited by olive (2015-11-09 20:21:41)

Ocypheum

Member

Registered: 2015-09-26

Posts: 58

Re: [Solved] (WW) Open ACPI failed in Xorg.0.log

I was waiting to see if anyone had a different opinion but it's not a big deal.