CentOS 7: Shutdown with pressing power button

This article will describe shutdown with pressing power button. This is not long press power button which will cause hardware power off. This will cause interrupt to software.

1 Power button action is suspend

CentOS 6's power button action is shutdown, but CentOS 7's power button action is suspend as below.

[   85.247233] Freezing user space processes ... (elapsed 0.001
seconds) done.
[   85.249541] Freezing remaining freezable tasks ... (elapsed 0.001
seconds) done.
[   85.251926] Suspending console(s) (use no_console_suspend to debug)

Fedora 22's power button action is suspend too. But Fedora 23's power button action is shutdown again. This might be a different way with a way of using default value.

You can change power button action for each user with gsetting and gconf-editor. But you cannot change power button action before login.

In case of virtual machine, you must login to guest machine CentOS 7 for shutdown CentOS 7.

There are some discussion about this power button action like tablet and customizing default value. I think that this action should be shutdown for PC like Fedora 23.

2 Rebuild gnome-settings-daemon

The following script will install gnome-settings-daemon which has shutdown as power button action. After reboot, CentOS 7 can be shutdown with power button.


sudo yum install -y rpmdevtools
sudo yum-builddep -y gnome-settings-daemon
sudo yumdownloader --source gnome-settings-daemon
rpm -i gnome-settings-daemon*.src.rpm
rm -f gnome-settings-daemon*.src.rpm

cd ~/rpmbuild

cat <<EOF > SOURCES/button-power-suspend-to-shutdown.patch
--- gnome-settings-daemon-3.14.4.org/data/org.gnome.settings-daemon.plugins.power.gschema.xml.in.in       2015-04-01 04:47:29.000000000 -0400
+++ gnome-settings-daemon-3.14.4/data/org.gnome.settings-daemon.plugins.power.gschema.xml.in.in   2016-10-18 22:16:01.627664826 -0400
@@ -57,7 +57,7 @@
     <!-- See https://bugzilla.gnome.org/show_bug.cgi?id=652183 for rationale -->
     <key name="button-power" enum="org.gnome.settings-daemon.GsdPowerActionType">
-      <default>'suspend'</default>
+      <default>'shutdown'</default>
       <summary>Power button action</summary>
       <description>The action to take when the system power button is pressed.</description>

cat <<EOF | patch -p1
--- a/SPECS/gnome-settings-daemon.spec    2016-10-18 22:44:16.963433081 -0400
+++ b/SPECS/gnome-settings-daemon.spec    2016-10-18 22:44:50.565951707 -0400
@@ -30,6 +30,8 @@ Patch4: 0001-mouse-Do-not-disable-touchp
 # https://bugzilla.redhat.com/show_bug.cgi?id=1260081
 Patch5: 0001-smartcard-use-NSS_InitContext-instead-of-NSS_Initial.patch

+Patch6: button-power-suspend-to-shutdown.patch
 Requires: control-center-filesystem
 Requires: colord

@@ -110,6 +112,7 @@ developing applications that use %{name}
 %patch3 -p1 -b .power-actions-when-locked
 %patch4 -p1 -b .touchpad-buttons
 %patch5 -p1 -b .smartcard-fix
+%patch6 -p1 -b .button-power

 autoreconf -i -f


rpmbuild -ba SPECS/gnome-settings-daemon.spec
sudo yum localinstall -y RPMS/x86_64/gnome-settings-daemon*.rpm
sudo reboot