== Summary ==
We will install power-profiles-daemon in Fedora Workstation and enable
it by default. power-profiles-daemon allows the user to choose between
optimizing for system performance or battery life.
== Owner ==
* Name: [[User:Hadess| Bastien Nocera]]
* Email: bnocera(a)redhat.com
* Name: [[User:Catanzaro|Michael Catanzaro]]
* Email: mcatanzaro(a)redhat.com
* Name: [[User:Ngompa|Neal Gompa]]
* Email: ngompa13(a)gmail.com
== Detailed Description ==
From the upstream README:
power-profiles-daemon offers to modify system behaviour based upon
user-selected power profiles. There are 3 different power profiles, a
"balanced" default mode, a "power-saver" mode, as well as a
"performance" mode. The first 2 of those are available on every
system. The "performance" mode is only available on select systems and
is implemented by different "drivers" based on the system or systems
In addition to those 2 or 3 modes (depending on the system), "actions"
can be hooked up to change the behaviour of a particular device. For
example, this can be used to disable the fast-charging for some USB
devices when in power-saver mode.
GNOME's Settings and shell both include interfaces to select the
current mode, but they are also expected to adjust the behaviour of
the desktop depending on the mode, such as turning the screen off
after inaction more aggressively when in power-saver mode.
== Feedback ==
<!-- Summarize the feedback from the community and address why you
chose not to accept proposed alternatives. This section is optional
for all change proposals but is strongly suggested. Incorporating
feedback here as it is raised gives FESCo a clearer view of your
proposal and leaves a good record for the future. If you get no
feedback, that is useful to note in this section as well. For
innovative or possibly controversial ideas, consider collecting
feedback before you file the change proposal. -->
== Benefit to Fedora ==
Shipping power-profiles-daemon enables GNOME to display and offer
users the ability to adjust configuration related to power management
similar to other operating systems, which can improve the quality of
the on-battery experience (with respect to longevity of operating on
== Scope ==
* Proposal owners: Add Recommends: power-profiles-daemon to
gnome-control-center package. Add systemd preset to fedora-release.
* Other developers: N/A (not needed for this Change)
* Release engineering: N/A (not needed for this Change)
* Policies and guidelines: N/A (not needed for this Change)
* Trademark approval: N/A (not needed for this Change)
* Alignment with Objectives: Nope.
== Upgrade/compatibility impact ==
power-profiles-daemon will be installed on upgrade to Fedora 35 if
gnome-control-center is installed. Since the default power profile is
the balanced mode, users should not notice performance changes (sans
bugs), but the option to manually select either performance or power
saving mode will now be present.
== How To Test ==
Visit the Power settings panel in gnome-control-center and switch
between performance, balanced, and power save mode. Look for
unexpected behavior changes over long periods of time. For example,
selecting Performance mode should improve system performance but
reduce battery life. Selecting power save mode should reduce
performance but increase battery life. Selecting balanced mode should
not change anything.
The selected power save mode should persist across system reboots.
== User Experience ==
GNOME Control Center will show a new section in the Power page giving
users the option to select power modes:
* Balanced (the default)
* Performance (to maximize performance)
* Power saver (to maximize battery life)
User selection of these profiles will set various tunables to meet the
needs as described in the profiles.
== Dependencies ==
gnome-control-center depends on power-profiles-daemon to offer power
saving options. If not installed, these options will not be present in
the power panel.
== Contingency Plan ==
* Contingency mechanism: we can easily remove the Recommends: in
gnome-control-center or the preset in fedora-release if necessary.
* Contingency deadline: N/A (not a System Wide Change)
* Blocks release? No
== Documentation ==
The only documentation is the upstream project README:
== Release Notes ==
Fedora Workstation now ships with power-profiles-daemon installed and enabled.
He / Him / His
Fedora Program Manager