brightness: dont cap to 1 minimum for non-backlight/ddc

Modules/ControlCenter/Details/BrightnessDetail.qml

@@ -310,6 +310,13 @@ Rectangle {
                         hoverEnabled: true
                         cursorShape: Qt.PointingHandCursor
                         onClicked: {
+                            if (screenName && screenName.length > 0 && modelData.name !== currentDeviceName) {
+                                const pins = JSON.parse(JSON.stringify(SettingsData.brightnessDevicePins || {}))
+                                if (pins[screenName]) {
+                                    delete pins[screenName]
+                                    SettingsData.setBrightnessDevicePins(pins)
+                                }
+                            }
                             currentDeviceName = modelData.name
                             deviceNameChanged(modelData.name)
                         }

Modules/ControlCenter/Widgets/BrightnessSliderRow.qml

@@ -145,7 +145,10 @@ Row {
         anchors.verticalCenter: parent.verticalCenter
         width: parent.width - (Theme.iconSize + Theme.spacingS * 2)
         enabled: DisplayService.brightnessAvailable && targetDeviceName.length > 0
-        minimum: 1
+        minimum: {
+            if (!targetDevice) return 1
+            return (targetDevice.class === "backlight" || targetDevice.class === "ddc") ? 1 : 0
+        }
         maximum: 100
         value: targetBrightness
         onSliderValueChanged: function (newValue) {

Modules/OSD/BrightnessOSD.qml

@@ -60,7 +60,11 @@ DankOSD {
                 height: 40
                 x: parent.gap * 2 + Theme.iconSize
                 anchors.verticalCenter: parent.verticalCenter
-                minimum: 1
+                minimum: {
+                    const deviceInfo = DisplayService.getCurrentDeviceInfo()
+                    if (!deviceInfo) return 1
+                    return (deviceInfo.class === "backlight" || deviceInfo.class === "ddc") ? 1 : 0
+                }
                 maximum: 100
                 enabled: DisplayService.brightnessAvailable
                 showValue: true

Services/DisplayService.qml

@@ -103,7 +103,6 @@ Singleton {
     }
 
     function setBrightness(percentage, device, suppressOsd) {
-        const clampedValue = Math.max(1, Math.min(100, percentage))
         const actualDevice = device === "" ? getDefaultDevice() : (device || currentDevice || getDefaultDevice())
 
         if (!actualDevice) {
@@ -111,6 +110,10 @@ Singleton {
             return
         }
 
+        const deviceInfo = getCurrentDeviceInfoByName(actualDevice)
+        const minValue = (deviceInfo && (deviceInfo.class === "backlight" || deviceInfo.class === "ddc")) ? 1 : 0
+        const clampedValue = Math.max(minValue, Math.min(100, percentage))
+
         if (!DMSService.isConnected) {
             console.warn("DisplayService: Not connected to DMS")
             return
@@ -588,13 +591,16 @@ Singleton {
                 return "Invalid brightness value: " + percentage
             }
 
-            const clampedValue = Math.max(1, Math.min(100, value))
             const targetDevice = device || ""
 
             if (targetDevice && !root.devices.some(d => d.id === targetDevice)) {
                 return "Device not found: " + targetDevice
             }
 
+            const deviceInfo = targetDevice ? root.getCurrentDeviceInfoByName(targetDevice) : null
+            const minValue = (deviceInfo && (deviceInfo.class === "backlight" || deviceInfo.class === "ddc")) ? 1 : 0
+            const clampedValue = Math.max(minValue, Math.min(100, value))
+
             root.lastIpcDevice = targetDevice
             if (targetDevice && targetDevice !== root.currentDevice) {
                 root.setCurrentDevice(targetDevice, false)