36 lines
1.7 KiB
Nix
36 lines
1.7 KiB
Nix
{ pkgs, username, resume-dev, ... }: {
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powerManagement.powertop.enable = true;
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services = {
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udev.extraRules = ''
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#ACTION=="add", SUBSYSTEM=="usb", TEST=="power/control", ATTR{power/control}="auto"
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ACTION=="add", SUBSYSTEM=="pci", TEST=="power/control", ATTR{power/control}="auto"
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SUBSYSTEM=="power_supply", ACTION=="change", RUN+="${pkgs.writeShellScript "battery-thresholds" ''
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echo 80 > /sys/class/power_supply/BAT*/charge_control_start_threshold || true
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echo 85 > /sys/class/power_supply/BAT*/charge_control_end_threshold || true
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''}"
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'';
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cron = {
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enable = true;
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systemCronJobs = [
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"* * * * * ${username} bash -x ${pkgs.writeShellScript "low-battery-notifier" ''
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BAT_PCT=`${pkgs.acpi}/bin/acpi -b | ${pkgs.gnugrep}/bin/grep -P -o '[0-9]+(?=%)'`
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BAT_STA=`${pkgs.acpi}/bin/acpi -b | ${pkgs.gnugrep}/bin/grep -P -o '\w+(?=,)'`
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echo "`date` battery status:$BAT_STA percentage:$BAT_PCT"
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export DISPLAY=:0
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export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/$(id -u)/bus
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test $BAT_PCT -le 30 && test $BAT_PCT -gt 15 && test $BAT_STA = "Discharging" && ${pkgs.libnotify}/bin/notify-send "Low Battery" "Battery remaining: $BAT_PCT%."
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test $BAT_PCT -le 15 && test $BAT_STA = "Discharging" && ${pkgs.libnotify}/bin/notify-send -u critical "Low Battery" "Shutdown at 10%."
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''} > /tmp/cron.batt.log 2>&1"
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];
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};
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upower = {
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enable = true;
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percentageCritical = 15;
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percentageAction = 10;
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usePercentageForPolicy = true;
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allowRiskyCriticalPowerAction = false;
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criticalPowerAction = if resume-dev != "" then "Hibernate" else "PowerOff";
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};
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};
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}
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