Power saving by default in Fedora Desktop

[Elad Alfassa <elad@xxxxxxxxxxxxxxxxx>]

Hi all.
It'd be awesome if we could make sure default Fedora Workstation will have "laptop mode" on by default.
Right now I need to run a script that changes many power tunables (got the list from powertop) to save battery on my laptop. It should be default. Perhaps detect if the machine is on-battery and if so enable all power saving features (disable watchdog, increase the vm_dirty_writeback_centisecs value, and so on)?

Can this be part of upower? Can we have a setting in Settings for that? (Something like "Enable power saving when on battery (decreases performance)"?

slightly off-topic to the main subject of this email, I was wondering: perhaps we should make gnome-shell automatically raise the nice and ionice values (ie. lower the priority) of unfocused windows, so that a focused window will always get priority for I/O and processor time (thus increasing the perceived performance of the system)

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-Elad Alfassa.

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