dotfiles/.config/quickshell/modules/bar/BatteryIndicator.qml

@@ -116,6 +116,68 @@ Item {
         }
     }
 
+    // device.timeToFull/timeToEmpty are computed by Quickshell from
+    // energy/energyCapacity/changeRate — when upowerd's EnergyFull glitches
+    // to 0 (the same daemon flake HEALTH routes around above), that formula
+    // divides by a bogus capacity and comes out negative rather than a
+    // real estimate (confirmed live: timeToFull sat at -3751 while `upower
+    // -i` itself still reported a normal 26.7 minutes). This recomputes
+    // the same estimate straight from sysfs as a fallback, only used when
+    // Quickshell's own value isn't positive. Unlike cycle_count/design
+    // capacity above, energy_now and power_now change continuously while
+    // (dis)charging, so this polls on a timer instead of reading once.
+    property real sysfsEnergyNowWh: -1
+    property real sysfsPowerNowW: -1
+
+    readonly property real fallbackTimeToFullSeconds: (root.sysfsPowerNowW > 0 && root.energyFullWh > 0 && root.sysfsEnergyNowWh >= 0)
+        ? Math.max(0, (root.energyFullWh - root.sysfsEnergyNowWh) / root.sysfsPowerNowW * 3600) : -1
+    readonly property real fallbackTimeToEmptySeconds: (root.sysfsPowerNowW > 0 && root.sysfsEnergyNowWh > 0)
+        ? (root.sysfsEnergyNowWh / root.sysfsPowerNowW * 3600) : -1
+
+    // Prefers upowerd's own live estimate when it's sane; only falls back
+    // to the sysfs-computed one when upowerd's has gone zero/negative.
+    readonly property real timeRemainingSeconds: {
+        const primary = root.onBattery ? root.device.timeToEmpty : root.device.timeToFull
+        if (primary > 0) return primary
+        return root.onBattery ? root.fallbackTimeToEmptySeconds : root.fallbackTimeToFullSeconds
+    }
+
+    Timer {
+        id: sysfsRateTimer
+        interval: 15000
+        repeat: true
+        running: root.batteryPresent
+        triggeredOnStart: true
+        onTriggered: {
+            if (!sysfsEnergyNowProc.running) sysfsEnergyNowProc.running = true
+            if (!sysfsPowerNowProc.running) sysfsPowerNowProc.running = true
+        }
+    }
+
+    Process {
+        id: sysfsEnergyNowProc
+        command: ["sh", "-c", "cat \"$(ls -d /sys/class/power_supply/BAT* 2>/dev/null | head -n1)/energy_now\" 2>/dev/null"]
+        stdout: StdioCollector {
+            id: sysfsEnergyNowCollector
+            onStreamFinished: {
+                const n = parseFloat(sysfsEnergyNowCollector.text.trim())
+                root.sysfsEnergyNowWh = (isNaN(n) || n < 0) ? -1 : (n / 1000000)
+            }
+        }
+    }
+
+    Process {
+        id: sysfsPowerNowProc
+        command: ["sh", "-c", "cat \"$(ls -d /sys/class/power_supply/BAT* 2>/dev/null | head -n1)/power_now\" 2>/dev/null"]
+        stdout: StdioCollector {
+            id: sysfsPowerNowCollector
+            onStreamFinished: {
+                const n = parseFloat(sysfsPowerNowCollector.text.trim())
+                root.sysfsPowerNowW = (isNaN(n) || n <= 0) ? -1 : (n / 1000000)
+            }
+        }
+    }
+
     // Raw UPower state string (Charging/Discharging/PendingCharge/…) — more
     // granular than modeLabel below, which collapses those down to the
     // three phrases the hero text and STATE row show.
@@ -176,9 +238,7 @@ Item {
         },
         {
             label: root.onBattery ? "TIME LEFT" : "TIME TO FULL",
-            value: root.batteryPresent
-                ? root.formatDuration(root.onBattery ? root.device.timeToEmpty : root.device.timeToFull)
-                : "—"
+            value: root.batteryPresent ? root.formatDuration(root.timeRemainingSeconds) : "—"
         },
         { label: "STATUS", value: root.rawStateLabel },
         { label: "CYCLES", value: root.cycleCount > 0 ? String(root.cycleCount) : "—" }