Arch Linux

davidshore

Member

Registered: 2014-01-18

Posts: 3

/etc/sysctl.d/ config file not being applied

I have (as suggested by the wiki) the following in /etc/sysctl.d/50-mouse.conf:

# Enable mouse button emulation
dev.mac_hid.mouse_button_emulation = 1
# Set 2nd button to 217 - the middle button of MX Revolution mouse.
dev.mac_hid.mouse_button2_keycode = 217

It's purpose is to get my middle mouse button working. It has worked until recently, when I updated my packages with

pacman -Syu

After a reboot, /proc/sys/dev/mac_hid/mouse_button_emulation is 0 (it should be set to 1 by /etc/sysctl.d/50-mouse.conf). If I do

sysctl --system

it changes to 1 like it should be and the mouse button works as expected (until the next reboot). The same thing goes for /proc/sys/dev/mac_hid/mouse_button2_keycode.

How can I figure out why these values aren't being set at startup? Is there a log I can view for clues?

cacplate

Member

Registered: 2013-08-30

Posts: 14

Re: /etc/sysctl.d/ config file not being applied

did pacman create a new file and made a pacsave file? If it did, you probably have to remodify the new one.

WorMzy

Administrator

From: Scotland

Registered: 2010-06-16

Posts: 13,582

Website

Re: /etc/sysctl.d/ config file not being applied

What is the output of

# systemctl status systemd-sysctl.service

sysctl isn't used by systemd, it has it's own binary.

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davidshore

Member

Registered: 2014-01-18

Posts: 3

Re: /etc/sysctl.d/ config file not being applied

did pacman create a new file and made a pacsave file? If it did, you probably have to remodify the new one.

No, I checked /etc/sysctl.d/50-mouse.conf. It has not been changed.

What is the output of

# systemctl status systemd-sysctl.service

sysctl isn't used by systemd, it has it's own binary.

Output is as follows:

● systemd-sysctl.service - Apply Kernel Variables
   Loaded: loaded (/usr/lib/systemd/system/systemd-sysctl.service; static)
   Active: active (exited) since Sun 2014-05-04 23:15:47 CDT; 44s ago
     Docs: man:systemd-sysctl.service(8)
           man:sysctl.d(5)
  Process: 192 ExecStart=/usr/lib/systemd/systemd-sysctl (code=exited, status=0/SUCCESS)
 Main PID: 192 (code=exited, status=0/SUCCESS)
   CGroup: /system.slice/systemd-sysctl.service

WonderWoofy

Member

From: Los Gatos, CA

Registered: 2012-05-19

Posts: 8,414

Re: /etc/sysctl.d/ config file not being applied

Just a wild guess, but since it it ultimately a wireless mouse, maybe it is not actually being found/synced to the machine until after the systemd-sysctl.service is run?  If that is the case, maybe a udev rule might be better suited for this scenario.