Rebase to flake parts #9

2026-05-10 01:45:16 -03:00
parent 34b89af77f
commit f02606902c
46 changed files with 2382 additions and 166 deletions
@@ -0,0 +1,45 @@
+{ pkgs, ... }: {
+  # ─────────────────────── Power & thermal ───────────────────────
+  # Snapdragon 7c (sc7180) on a tablet form factor: aim for battery life. `schedutil` is the
+  # right modern cpufreq governor on ARM (responsive + power-aware); use it instead of
+  # `powersave` to avoid pinning the CPU at minimum frequency under interactive load.
+  powerManagement.cpuFreqGovernor = "schedutil";
+  powerManagement.enable = true;
+
+  # ─────────────────────── logind: lid & power button ───────────────────────
+  # Closing the lid suspends, even on AC — Duet 3 is a tablet, treat it like one.
+  # Short press on power: suspend (matches ChromeOS/iOS); long press: poweroff.
+  # The DMS bar power menu is the way to reboot / shut down explicitly.
+  services.logind.settings.Login = {
+    HandleLidSwitch = "suspend";
+    HandleLidSwitchExternalPower = "suspend";
+    HandleLidSwitchDocked = "ignore";
+    HandlePowerKey = "suspend";
+    HandlePowerKeyLongPress = "poweroff";
+  };
+
+  # ─────────────────────── Idle / suspend tuning ───────────────────────
+  # Allow suspend-to-RAM but disable hibernate (ARM swap-resume is unreliable, and we don't
+  # have a swap device by default anyway).
+  systemd.sleep.settings.Sleep = {
+    AllowHibernation = "no";
+    AllowHybridSleep = "no";
+    AllowSuspendThenHibernate = "no";
+  };
+
+  # upower picks the right battery percentages for low/critical out of the box; just make
+  # sure the action on critical is hibernate-then-poweroff fallback (we disabled hibernate
+  # so it'll go straight to poweroff). DMS reads upower for the bar widget.
+  services.upower = {
+    enable = true;
+    criticalPowerAction = "PowerOff";
+    percentageLow = 15;
+    percentageCritical = 7;
+    percentageAction = 3;
+  };
+
+  # ─────────────────────── Bluetooth audio quality of life ───────────────────────
+  # Duet has limited mic/speaker hw — keep wpa_supplicant power-save off so audio doesn't crackle
+  # over Bluetooth when CPU is idle. (Wi-Fi + BT share the chip; aggressive power-save = stutter.)
+  networking.networkmanager.wifi.powersave = false;
+}