feat(ui): add log level selector in Troubleshooting Mode (#1395)

* feat(ui): add log level selector in Troubleshooting Mode

Add a UI dropdown in Advanced > Troubleshooting Mode that lets users
set the system log verbosity (Error, Warning, Info, Debug, Trace).
Changes take effect immediately without restart via new
getDefaultLogLevel/setDefaultLogLevel JSON-RPC endpoints.

Also downgrades the noisy wakeup_on_write permission denied warning
from Warn to Debug level, and removes the INFO→WARN config migration
so users can actually select INFO.

Localized for all 14 languages.

* chore(ui): disable no-floating-promises in oxlint

The rule is not actionable for the current codebase; turn it off explicitly.

* refactor(ui): drop void prefixes on JSON-RPC send in advanced settings

no-floating-promises is disabled in oxlint; match the rest of the codebase.

* fix(ui): localize log level dropdown and fix optimistic update

- Replace hardcoded English dropdown labels with localized m.*() calls
- Replace hardcoded error string with m.advanced_error_set_log_level()
- Optimistically update dropdown on change and revert on RPC failure
- Add 6 new i18n keys across all 14 locales

* chore: add remote-agent to .gitignore and auto-sort i18n in pre-commit

- Ignore the compiled e2e/remote-agent/remote-agent binary
- Add lint-staged rule to run i18n:resort on message JSON changes

* copy(ui): improve log level setting description

Apply outcome-oriented copy: explain what the setting does for the
user and when to change it, rather than restating the control's
mechanics. Updated across all 14 locales.

* fix(logging): scope loggers not rebuilt when config level matches base default

UpdateLogLevel compared the new config level against the base default
(ErrorLevel) instead of the previous config level. When switching from
WARN back to ERROR, the comparison was equal so scope loggers kept
their old WarnLevel filter — WRN messages continued appearing despite
the user selecting Error.

Compare against the previous defaultLogLevelFromConfig instead.

* test(logging): add RPC probe for log level filtering

Add a dedicated emitTestLog JSON-RPC method and a focused e2e spec that
verifies live TRACE/DEBUG/INFO/WARN/ERROR filtering against last.log.

* chore(ui): update .gitignore to exclude screenshot.png file

.gitignore

@@ -15,3 +15,6 @@ node_modules
 #internal/native/lib
 
 ui/reports
+
+# compiled remote-agent test binary
+e2e/remote-agent/remote-agent

config.go

@@ -291,11 +291,6 @@ func LoadConfig() {
 		loadedConfig.KeyboardLayout = "en-US"
 	}
 
-	// Migrate old verbose log level to sensible default
-	if loadedConfig.DefaultLogLevel == "INFO" {
-		loadedConfig.DefaultLogLevel = "WARN"
-	}
-
 	// Migrate old default EDID (Toshiba TSB, no CEA extension) to new JetKVM v1 EDID
 	const oldDefaultEDID = "00ffffffffffff0052620188008888881c150103800000780a0dc9a05747982712484c00000001010101010101010101010101010101023a801871382d40582c4500c48e2100001e011d007251d01e206e285500c48e2100001e000000fc00543734392d6648443732300a20000000fd00147801ff1d000a202020202020017b"
 	if loadedConfig.EdidString == "" || loadedConfig.EdidString == oldDefaultEDID {

internal/logging/logger.go

@@ -188,14 +188,13 @@ func (l *Logger) UpdateLogLevel(configDefaultLogLevel string) {
 
 	if configDefaultLogLevel != "" {
 		if logLevel, ok := zerologLevels[configDefaultLogLevel]; ok {
+			if l.defaultLogLevelFromConfig != logLevel {
+				needUpdate = true
+			}
 			l.defaultLogLevelFromConfig = logLevel
 		} else {
 			l.l.Warn().Str("logLevel", configDefaultLogLevel).Msg("invalid defaultLogLevel from config, using ERROR")
 		}
-
-		if l.defaultLogLevelFromConfig != l.defaultLogLevel {
-			needUpdate = true
-		}
 	}
 
 	l.updateLogLevel()

internal/usbgadget/changeset_resolver.go

@@ -129,7 +129,7 @@ func (c *ChangeSetResolver) applyChanges() error {
 		err := c.changeset.applyChange(change)
 		if err != nil {
 			if change.IgnoreErrors {
-				c.l.Warn().Str("change", change.String()).Err(err).Msg("ignoring error")
+				c.l.Debug().Str("change", change.String()).Err(err).Msg("ignoring error")
 			} else {
 				return err
 			}

jsonrpc.go

@@ -17,6 +17,7 @@ import (
 	"github.com/rs/zerolog"
 
 	"github.com/jetkvm/kvm/internal/hidrpc"
+	"github.com/jetkvm/kvm/internal/logging"
 	"github.com/jetkvm/kvm/internal/usbgadget"
 	"github.com/jetkvm/kvm/internal/utils"
 )
@@ -1086,6 +1087,62 @@ func rpcSetLocalLoopbackOnly(enabled bool) error {
 	return nil
 }
 
+var validLogLevels = map[string]bool{
+	"TRACE": true,
+	"DEBUG": true,
+	"INFO":  true,
+	"WARN":  true,
+	"ERROR": true,
+}
+
+const testLogProbeMessage = "JSON-RPC test log probe"
+
+func rpcGetDefaultLogLevel() (string, error) {
+	return config.DefaultLogLevel, nil
+}
+
+func rpcSetDefaultLogLevel(level string) error {
+	if !validLogLevels[level] {
+		return fmt.Errorf("invalid log level: %s", level)
+	}
+
+	if config.DefaultLogLevel == level {
+		return nil
+	}
+
+	config.DefaultLogLevel = level
+	if err := SaveConfig(); err != nil {
+		return fmt.Errorf("failed to save config: %w", err)
+	}
+
+	logging.GetRootLogger().UpdateLogLevel(level)
+
+	return nil
+}
+
+func rpcEmitTestLog(level string) error {
+	if !validLogLevels[level] {
+		return fmt.Errorf("invalid log level: %s", level)
+	}
+
+	testLogger := logging.GetSubsystemLogger("testlog")
+
+	switch level {
+	case "TRACE":
+		testLogger.Trace().Msg(testLogProbeMessage)
+	case "DEBUG":
+		testLogger.Debug().Msg(testLogProbeMessage)
+	case "INFO":
+		testLogger.Info().Msg(testLogProbeMessage)
+	case "WARN":
+		testLogger.Warn().Msg(testLogProbeMessage)
+	case "ERROR":
+		testLogger.Error().Msg(testLogProbeMessage)
+	}
+
+	return nil
+}
+
 var (
 	keyboardMacroCancel context.CancelFunc
 	keyboardMacroLock   sync.Mutex
@@ -1281,6 +1338,9 @@ var rpcHandlers = map[string]RPCHandler{
 	"setKeyboardMacros":          {Func: setKeyboardMacros, Params: []string{"params"}},
 	"getLocalLoopbackOnly":       {Func: rpcGetLocalLoopbackOnly},
 	"setLocalLoopbackOnly":       {Func: rpcSetLocalLoopbackOnly, Params: []string{"enabled"}},
+	"getDefaultLogLevel":         {Func: rpcGetDefaultLogLevel},
+	"setDefaultLogLevel":         {Func: rpcSetDefaultLogLevel, Params: []string{"level"}},
+	"emitTestLog":                {Func: rpcEmitTestLog, Params: []string{"level"}},
 	"getPublicIPAddresses":       {Func: rpcGetPublicIPAddresses, Params: []string{"refresh"}},
 	"checkPublicIPAddresses":     {Func: rpcCheckPublicIPAddresses},
 	"getTailscaleStatus":         {Func: rpcGetTailscaleStatus},

ui/.gitignore

@@ -22,3 +22,4 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+/screenshot.png

ui/.oxlintrc.json

@@ -9,7 +9,7 @@
   },
   "rules": {
     "typescript/no-unused-vars": ["warn", { "argsIgnorePattern": "^_", "varsIgnorePattern": "^_" }],
-    "typescript/no-floating-promises": "warn",
+    "typescript/no-floating-promises": "off",
     "typescript/restrict-template-expressions": "warn",
     "typescript/no-base-to-string": "warn",
     "import/order": [

ui/e2e/log-level.spec.ts

@@ -0,0 +1,85 @@
+import { test, expect } from "@playwright/test";
+
+import {
+  ensureLocalAuthMode,
+  waitForWebRTCReady,
+  dismissSessionTakeoverDialog,
+  callJsonRpc,
+  sshExec,
+} from "./helpers";
+
+const DEVICE_LAST_LOG_PATH = "/userdata/jetkvm/last.log";
+const TEST_LOG_PATTERN = "JSON-RPC test log probe";
+const LOG_LEVELS = ["TRACE", "DEBUG", "INFO", "WARN", "ERROR"] as const;
+type LogLevel = (typeof LOG_LEVELS)[number];
+
+function shellEscapeDoubleQuotes(value: string): string {
+  return value.replace(/["\\$`]/g, "\\$&");
+}
+
+async function clearDeviceLog(): Promise<void> {
+  await sshExec(`: > ${DEVICE_LAST_LOG_PATH}`, true);
+}
+
+async function countDeviceLogMatches(pattern: string): Promise<number> {
+  const escapedPattern = shellEscapeDoubleQuotes(pattern);
+  const output = await sshExec(
+    `sh -lc "grep -F -c -- \\"${escapedPattern}\\" ${DEVICE_LAST_LOG_PATH} 2>/dev/null || true"`,
+    true,
+  );
+  return Number.parseInt(output.trim() || "0", 10);
+}
+
+async function emitTestLog(
+  page: Parameters<typeof test>[0] extends never ? never : any,
+  level: LogLevel,
+): Promise<void> {
+  await callJsonRpc(page, "emitTestLog", { level });
+}
+
+test.describe("Log level filtering", () => {
+  test.setTimeout(45_000);
+
+  test("live changes filter TRACE/DEBUG/INFO/WARN/ERROR logs without restart", async ({ page }) => {
+    await page.goto("/");
+    await page.waitForLoadState("networkidle");
+    await ensureLocalAuthMode(page, { mode: "noPassword" });
+    await dismissSessionTakeoverDialog(page);
+    await waitForWebRTCReady(page);
+
+    const originalLevel = (await callJsonRpc(page, "getDefaultLogLevel")) as LogLevel;
+
+    try {
+      for (const [index, level] of LOG_LEVELS.entries()) {
+        await clearDeviceLog();
+        await callJsonRpc(page, "setDefaultLogLevel", { level });
+        await page.waitForTimeout(250);
+        await emitTestLog(page, level);
+
+        await expect
+          .poll(() => countDeviceLogMatches(TEST_LOG_PATTERN), {
+            message: `Waiting for ${level} probe log to be written`,
+            timeout: 5_000,
+            intervals: [200, 500, 1000],
+          })
+          .toBe(1);
+
+        const moreVerboseLevel = LOG_LEVELS[index - 1];
+        if (!moreVerboseLevel) continue;
+
+        await clearDeviceLog();
+        await callJsonRpc(page, "setDefaultLogLevel", { level });
+        await page.waitForTimeout(250);
+        await emitTestLog(page, moreVerboseLevel);
+        await page.waitForTimeout(1_000);
+
+        expect(
+          await countDeviceLogMatches(TEST_LOG_PATTERN),
+          `${moreVerboseLevel} log should be suppressed when default log level is ${level}`,
+        ).toBe(0);
+      }
+    } finally {
+      await callJsonRpc(page, "setDefaultLogLevel", { level: originalLevel }).catch(() => {});
+    }
+  });
+});

ui/localization/messages/cy.json

@@ -76,6 +76,7 @@
     "advanced_error_loopback_enable": "Methwyd galluogi modd loopback yn unig: {error}",
     "advanced_error_set_dev_channel": "Methwyd gosod cyflwr sianel ddatblygu: {error}",
     "advanced_error_set_dev_mode": "Methwyd gosod modd datblygwr: {error}",
+    "advanced_error_set_log_level": "Methwyd gosod lefel log: {error}",
     "advanced_error_update_ssh_key": "Methwyd diweddaru allwedd SSH: {error}",
     "advanced_error_usb_emulation_disable": "Methwyd analluogi efelychu USB: {error}",
     "advanced_error_usb_emulation_enable": "Methwyd galluogi efelychu USB: {error}",
@@ -88,6 +89,11 @@
     "advanced_factory_reset_error": "Methwyd ag ailosod i osodiadau ffatri: {error}",
     "advanced_factory_reset_success": "Cychwynnwyd ailosodiad ffatri. Bydd y ddyfais yn ailgychwyn yn fuan.",
     "advanced_factory_reset_title": "Ailosodiad Ffatri",
+    "advanced_log_level_debug": "Debug",
+    "advanced_log_level_error": "Gwall",
+    "advanced_log_level_info": "Gwybodaeth",
+    "advanced_log_level_trace": "Trace",
+    "advanced_log_level_warning": "Rhybudd",
     "advanced_loopback_only_description": "Cyfyngu mynediad rhyngwyneb gwe i localhost yn unig (127.0.0.1)",
     "advanced_loopback_only_title": "Modd Loopback yn Unig",
     "advanced_loopback_warning_before": "Cyn galluogi'r nodwedd hon, sicrhewch fod gennych naill ai:",
@@ -107,6 +113,8 @@
     "advanced_success_loopback_enabled": "Modd loopback yn unig wedi'i alluogi. Ailgychwynnwch eich dyfais i'w gymhwyso.",
     "advanced_success_update_ssh_key": "Allwedd SSH wedi'i diweddaru'n llwyddiannus",
     "advanced_title": "Uwch",
+    "advanced_troubleshooting_log_level_description": "Addaswch fanylion log ar gyfer diagnosteg. Gall lefelau uwch effeithio ar berfformiad",
+    "advanced_troubleshooting_log_level_title": "Lefel log",
     "advanced_troubleshooting_mode_description": "Offer diagnostig a rheolaethau ychwanegol ar gyfer datrys problemau a dibenion datblygu",
     "advanced_troubleshooting_mode_title": "Modd Datrys Problemau",
     "advanced_update_ssh_key_button": "Diweddaru Allwedd SSH",

ui/localization/messages/da.json

@@ -77,6 +77,7 @@
     "advanced_error_reset_config": "Konfigurationen kunne ikke nulstilles: {error}",
     "advanced_error_set_dev_channel": "Kunne ikke indstille udviklerkanaltilstand: {error}",
     "advanced_error_set_dev_mode": "Kunne ikke indstille udviklertilstand: {error}",
+    "advanced_error_set_log_level": "Kunne ikke indstille logniveau: {error}",
     "advanced_error_update_ssh_key": "Kunne ikke opdatere SSH-nøglen: {error}",
     "advanced_error_usb_emulation_disable": "Kunne ikke deaktivere USB-emulering: {error}",
     "advanced_error_usb_emulation_enable": "Kunne ikke aktivere USB-emulering: {error}",
@@ -89,6 +90,11 @@
     "advanced_factory_reset_error": "Fabriksnulstilling mislykkedes: {error}",
     "advanced_factory_reset_success": "Fabriksnulstilling startet. Enheden genstarter om kort tid.",
     "advanced_factory_reset_title": "Fabriksnulstilling",
+    "advanced_log_level_debug": "Debug",
+    "advanced_log_level_error": "Fejl",
+    "advanced_log_level_info": "Info",
+    "advanced_log_level_trace": "Trace",
+    "advanced_log_level_warning": "Advarsel",
     "advanced_loopback_only_description": "Begræns webgrænsefladeadgang kun til localhost (127.0.0.1)",
     "advanced_loopback_only_title": "Kun loopback-tilstand",
     "advanced_loopback_warning_before": "Før du aktiverer denne funktion, skal du sikre dig, at du har enten:",
@@ -112,6 +118,8 @@
     "advanced_success_reset_config": "Konfigurationen er nulstillet til standard",
     "advanced_success_update_ssh_key": "SSH-nøglen er blevet opdateret",
     "advanced_title": "Avanceret",
+    "advanced_troubleshooting_log_level_description": "Juster logdetaljer til fejlsøgning. Højere niveauer kan påvirke ydeevnen",
+    "advanced_troubleshooting_log_level_title": "Logniveau",
     "advanced_troubleshooting_mode_description": "Diagnostiske værktøjer og yderligere kontroller til fejlfinding og udviklingsformål",
     "advanced_troubleshooting_mode_title": "Fejlfindingstilstand",
     "advanced_update_ssh_key_button": "Opdater SSH-nøgle",

ui/localization/messages/de.json

@@ -77,6 +77,7 @@
     "advanced_error_reset_config": "Konfiguration konnte nicht zurückgesetzt werden: {error}",
     "advanced_error_set_dev_channel": "Der Dev-Kanalstatus konnte nicht festgelegt werden: {error}",
     "advanced_error_set_dev_mode": "Fehler beim Festlegen des Entwicklungsmodus: {error}",
+    "advanced_error_set_log_level": "Fehler beim Festlegen der Protokollebene: {error}",
     "advanced_error_update_ssh_key": "SSH-Schlüssel konnte nicht aktualisiert werden: {error}",
     "advanced_error_usb_emulation_disable": "USB-Emulation konnte nicht deaktiviert werden: {error}",
     "advanced_error_usb_emulation_enable": "USB-Emulation konnte nicht aktiviert werden: {error}",
@@ -89,6 +90,11 @@
     "advanced_factory_reset_error": "Werksreset fehlgeschlagen: {error}",
     "advanced_factory_reset_success": "Werksreset eingeleitet. Das Gerät wird in Kürze neu gestartet.",
     "advanced_factory_reset_title": "Werksreset",
+    "advanced_log_level_debug": "Debug",
+    "advanced_log_level_error": "Fehler",
+    "advanced_log_level_info": "Info",
+    "advanced_log_level_trace": "Trace",
+    "advanced_log_level_warning": "Warnung",
     "advanced_loopback_only_description": "Beschränken Sie den Zugriff auf die Weboberfläche nur auf den lokalen Host (127.0.0.1).",
     "advanced_loopback_only_title": "Nur-Loopback-Modus",
     "advanced_loopback_warning_before": "Bevor Sie diese Funktion aktivieren, stellen Sie sicher, dass Sie über Folgendes verfügen:",
@@ -112,6 +118,8 @@
     "advanced_success_reset_config": "Konfiguration erfolgreich auf Standard zurückgesetzt",
     "advanced_success_update_ssh_key": "SSH-Schlüssel erfolgreich aktualisiert",
     "advanced_title": "Erweitert",
+    "advanced_troubleshooting_log_level_description": "Protokolldetails für die Diagnose anpassen. Höhere Stufen können die Leistung beeinträchtigen",
+    "advanced_troubleshooting_log_level_title": "Protokollebene",
     "advanced_troubleshooting_mode_description": "Diagnosetools und zusätzliche Steuerelemente für Fehlerbehebungs- und Entwicklungszwecke",
     "advanced_troubleshooting_mode_title": "Fehlerbehebungsmodus",
     "advanced_update_ssh_key_button": "SSH-Schlüssel aktualisieren",

ui/localization/messages/en.json

@@ -77,6 +77,7 @@
     "advanced_error_reset_config": "Failed to reset configuration: {error}",
     "advanced_error_set_dev_channel": "Failed to set dev channel state: {error}",
     "advanced_error_set_dev_mode": "Failed to set dev mode: {error}",
+    "advanced_error_set_log_level": "Failed to set log level: {error}",
     "advanced_error_update_ssh_key": "Failed to update SSH key: {error}",
     "advanced_error_usb_emulation_disable": "Failed to disable USB emulation: {error}",
     "advanced_error_usb_emulation_enable": "Failed to enable USB emulation: {error}",
@@ -89,6 +90,11 @@
     "advanced_factory_reset_error": "Factory reset failed: {error}",
     "advanced_factory_reset_success": "Factory reset initiated. The device will reboot shortly.",
     "advanced_factory_reset_title": "Factory Reset",
+    "advanced_log_level_debug": "Debug",
+    "advanced_log_level_error": "Error",
+    "advanced_log_level_info": "Info",
+    "advanced_log_level_trace": "Trace",
+    "advanced_log_level_warning": "Warning",
     "advanced_loopback_only_description": "Restrict web interface access to localhost only (127.0.0.1)",
     "advanced_loopback_only_title": "Loopback-Only Mode",
     "advanced_loopback_warning_before": "Before enabling this feature, make sure you have either:",
@@ -112,6 +118,8 @@
     "advanced_success_reset_config": "Configuration reset to default successfully",
     "advanced_success_update_ssh_key": "SSH key updated successfully",
     "advanced_title": "Advanced",
+    "advanced_troubleshooting_log_level_description": "Adjust log detail for diagnostics. Higher levels may impact performance",
+    "advanced_troubleshooting_log_level_title": "Log Level",
     "advanced_troubleshooting_mode_description": "Diagnostic tools and additional controls for troubleshooting and development purposes",
     "advanced_troubleshooting_mode_title": "Troubleshooting Mode",
     "advanced_update_ssh_key_button": "Update SSH Key",

ui/localization/messages/es.json

@@ -77,6 +77,7 @@
     "advanced_error_reset_config": "No se pudo restablecer la configuración: {error}",
     "advanced_error_set_dev_channel": "No se pudo establecer el estado del canal de desarrollo: {error}",
     "advanced_error_set_dev_mode": "No se pudo establecer el modo de desarrollo: {error}",
+    "advanced_error_set_log_level": "No se pudo establecer el nivel de registro: {error}",
     "advanced_error_update_ssh_key": "No se pudo actualizar la clave SSH: {error}",
     "advanced_error_usb_emulation_disable": "No se pudo deshabilitar la emulación USB: {error}",
     "advanced_error_usb_emulation_enable": "No se pudo habilitar la emulación USB: {error}",
@@ -89,6 +90,11 @@
     "advanced_factory_reset_error": "El restablecimiento de fábrica falló: {error}",
     "advanced_factory_reset_success": "Restablecimiento de fábrica iniciado. El dispositivo se reiniciará en breve.",
     "advanced_factory_reset_title": "Restablecimiento de fábrica",
+    "advanced_log_level_debug": "Debug",
+    "advanced_log_level_error": "Error",
+    "advanced_log_level_info": "Info",
+    "advanced_log_level_trace": "Trace",
+    "advanced_log_level_warning": "Advertencia",
     "advanced_loopback_only_description": "Restringir el acceso a la interfaz web solo al host local (127.0.0.1)",
     "advanced_loopback_only_title": "Modo de solo bucle invertido",
     "advanced_loopback_warning_before": "Antes de habilitar esta función, asegúrese de tener:",
@@ -112,6 +118,8 @@
     "advanced_success_reset_config": "La configuración se restableció a los valores predeterminados correctamente",
     "advanced_success_update_ssh_key": "Clave SSH actualizada exitosamente",
     "advanced_title": "Avanzado",
+    "advanced_troubleshooting_log_level_description": "Ajuste el detalle del registro para diagnósticos. Los niveles altos pueden afectar el rendimiento",
+    "advanced_troubleshooting_log_level_title": "Nivel de registro",
     "advanced_troubleshooting_mode_description": "Herramientas de diagnóstico y controles adicionales para resolución de problemas y fines de desarrollo",
     "advanced_troubleshooting_mode_title": "Modo de solución de problemas",
     "advanced_update_ssh_key_button": "Actualizar clave SSH",

ui/localization/messages/fr.json

@@ -77,6 +77,7 @@
     "advanced_error_reset_config": "Échec de la réinitialisation de la configuration : {error}",
     "advanced_error_set_dev_channel": "Échec de la définition de l'état du canal de développement : {error}",
     "advanced_error_set_dev_mode": "Échec de la définition du mode de développement : {error}",
+    "advanced_error_set_log_level": "Échec de la définition du niveau de journalisation : {error}",
     "advanced_error_update_ssh_key": "Échec de la mise à jour de la clé SSH : {error}",
     "advanced_error_usb_emulation_disable": "Échec de la désactivation de l'émulation USB : {error}",
     "advanced_error_usb_emulation_enable": "Échec de l'activation de l'émulation USB : {error}",
@@ -89,6 +90,11 @@
     "advanced_factory_reset_error": "Échec de la réinitialisation d'usine : {error}",
     "advanced_factory_reset_success": "Réinitialisation d'usine lancée. L'appareil redémarrera sous peu.",
     "advanced_factory_reset_title": "Réinitialisation d'usine",
+    "advanced_log_level_debug": "Debug",
+    "advanced_log_level_error": "Erreur",
+    "advanced_log_level_info": "Info",
+    "advanced_log_level_trace": "Trace",
+    "advanced_log_level_warning": "Avertissement",
     "advanced_loopback_only_description": "Restreindre l'accès à l'interface Web à l'hôte local uniquement (127.0.0.1)",
     "advanced_loopback_only_title": "Mode de bouclage uniquement",
     "advanced_loopback_warning_before": "Avant d'activer cette fonctionnalité, assurez-vous d'avoir :",
@@ -112,6 +118,8 @@
     "advanced_success_reset_config": "La configuration par défaut a été réinitialisée avec succès",
     "advanced_success_update_ssh_key": "Clé SSH mise à jour avec succès",
     "advanced_title": "Avancé",
+    "advanced_troubleshooting_log_level_description": "Ajustez le détail des journaux pour le diagnostic. Les niveaux élevés peuvent affecter les performances",
+    "advanced_troubleshooting_log_level_title": "Niveau de journalisation",
     "advanced_troubleshooting_mode_description": "Outils de diagnostic et contrôles supplémentaires à des fins de dépannage et de développement",
     "advanced_troubleshooting_mode_title": "Mode de dépannage",
     "advanced_update_ssh_key_button": "Mettre à jour la clé SSH",

ui/localization/messages/it.json

@@ -77,6 +77,7 @@
     "advanced_error_reset_config": "Impossibile reimpostare la configurazione: {error}",
     "advanced_error_set_dev_channel": "Impossibile impostare lo stato del canale di sviluppo: {error}",
     "advanced_error_set_dev_mode": "Impossibile impostare la modalità di sviluppo: {error}",
+    "advanced_error_set_log_level": "Impossibile impostare il livello di log: {error}",
     "advanced_error_update_ssh_key": "Impossibile aggiornare la chiave SSH: {error}",
     "advanced_error_usb_emulation_disable": "Impossibile disabilitare l'emulazione USB: {error}",
     "advanced_error_usb_emulation_enable": "Impossibile abilitare l'emulazione USB: {error}",
@@ -89,6 +90,11 @@
     "advanced_factory_reset_error": "Ripristino di fabbrica non riuscito: {error}",
     "advanced_factory_reset_success": "Ripristino di fabbrica avviato. Il dispositivo si riavvierà a breve.",
     "advanced_factory_reset_title": "Ripristino di fabbrica",
+    "advanced_log_level_debug": "Debug",
+    "advanced_log_level_error": "Errore",
+    "advanced_log_level_info": "Info",
+    "advanced_log_level_trace": "Trace",
+    "advanced_log_level_warning": "Avviso",
     "advanced_loopback_only_description": "Limita l'accesso all'interfaccia web solo a localhost (127.0.0.1)",
     "advanced_loopback_only_title": "Modalità solo loopback",
     "advanced_loopback_warning_before": "Prima di abilitare questa funzione, assicurati di avere:",
@@ -112,6 +118,8 @@
     "advanced_success_reset_config": "Configurazione ripristinata ai valori predefiniti con successo",
     "advanced_success_update_ssh_key": "Chiave SSH aggiornata correttamente",
     "advanced_title": "Avanzato",
+    "advanced_troubleshooting_log_level_description": "Regola il dettaglio dei log per la diagnostica. Livelli più alti possono influire sulle prestazioni",
+    "advanced_troubleshooting_log_level_title": "Livello di log",
     "advanced_troubleshooting_mode_description": "Strumenti diagnostici e controlli aggiuntivi per la risoluzione dei problemi e lo sviluppo",
     "advanced_troubleshooting_mode_title": "Modalità di risoluzione dei problemi",
     "advanced_update_ssh_key_button": "Aggiorna la chiave SSH",

ui/localization/messages/ja.json

@@ -77,6 +77,7 @@
     "advanced_error_reset_config": "設定のリセットに失敗しました: {error}",
     "advanced_error_set_dev_channel": "Devチャンネル状態の設定に失敗しました: {error}",
     "advanced_error_set_dev_mode": "開発者モードの設定に失敗しました: {error}",
+    "advanced_error_set_log_level": "ログレベルの設定に失敗しました: {error}",
     "advanced_error_update_ssh_key": "SSHキーの更新に失敗しました: {error}",
     "advanced_error_usb_emulation_disable": "USBエミュレーションの無効化に失敗しました: {error}",
     "advanced_error_usb_emulation_enable": "USBエミュレーションの有効化に失敗しました: {error}",
@@ -89,6 +90,11 @@
     "advanced_factory_reset_error": "工場出荷時リセットに失敗しました: {error}",
     "advanced_factory_reset_success": "工場出荷時リセットを開始しました。まもなくデバイスが再起動します。",
     "advanced_factory_reset_title": "工場出荷時リセット",
+    "advanced_log_level_debug": "デバッグ",
+    "advanced_log_level_error": "エラー",
+    "advanced_log_level_info": "情報",
+    "advanced_log_level_trace": "トレース",
+    "advanced_log_level_warning": "警告",
     "advanced_loopback_only_description": "Webインターフェースへのアクセスをlocalhost (127.0.0.1) のみに制限する",
     "advanced_loopback_only_title": "ループバック専用モード",
     "advanced_loopback_warning_before": "この機能を有効にする前に、以下のいずれかを確認してください:",
@@ -112,6 +118,8 @@
     "advanced_success_reset_config": "設定が正常にデフォルトにリセットされました",
     "advanced_success_update_ssh_key": "SSHキーが正常に更新されました",
     "advanced_title": "詳細設定",
+    "advanced_troubleshooting_log_level_description": "診断用にログの詳細度を調整します。レベルが高いほどパフォーマンスに影響する場合があります",
+    "advanced_troubleshooting_log_level_title": "ログレベル",
     "advanced_troubleshooting_mode_description": "トラブルシューティングおよび開発目的の診断ツールと追加コントロール",
     "advanced_troubleshooting_mode_title": "トラブルシューティングモード",
     "advanced_update_ssh_key_button": "SSHキーを更新",

ui/localization/messages/nb.json

@@ -77,6 +77,7 @@
     "advanced_error_reset_config": "Kunne ikke tilbakestille konfigurasjonen: {error}",
     "advanced_error_set_dev_channel": "Klarte ikke å angi tilstanden til utviklerkanalen: {error}",
     "advanced_error_set_dev_mode": "Kunne ikke angi utviklermodus: {error}",
+    "advanced_error_set_log_level": "Kunne ikke angi loggnivå: {error}",
     "advanced_error_update_ssh_key": "Kunne ikke oppdatere SSH-nøkkelen: {error}",
     "advanced_error_usb_emulation_disable": "Kunne ikke deaktivere USB-emulering: {error}",
     "advanced_error_usb_emulation_enable": "Kunne ikke aktivere USB-emulering: {error}",
@@ -89,6 +90,11 @@
     "advanced_factory_reset_error": "Tilbakestilling til fabrikkinnstillinger feilet: {error}",
     "advanced_factory_reset_success": "Tilbakestilling til fabrikkinnstillinger startet. Enheten starter snart på nytt.",
     "advanced_factory_reset_title": "Tilbakestill til fabrikkinnstillinger",
+    "advanced_log_level_debug": "Debug",
+    "advanced_log_level_error": "Feil",
+    "advanced_log_level_info": "Info",
+    "advanced_log_level_trace": "Trace",
+    "advanced_log_level_warning": "Advarsel",
     "advanced_loopback_only_description": "Begrens tilgang til webgrensesnittet kun til lokal vert (127.0.0.1)",
     "advanced_loopback_only_title": "Kun lokal tilgang",
     "advanced_loopback_warning_before": "Før du aktiverer denne funksjonen, må du sørge for at du har enten:",
@@ -112,6 +118,8 @@
     "advanced_success_reset_config": "Konfigurasjonen ble tilbakestilt til standard",
     "advanced_success_update_ssh_key": "SSH-nøkkelen er oppdatert",
     "advanced_title": "Avansert",
+    "advanced_troubleshooting_log_level_description": "Juster loggdetaljer for feilsøking. Høyere nivåer kan påvirke ytelsen",
+    "advanced_troubleshooting_log_level_title": "Loggnivå",
     "advanced_troubleshooting_mode_description": "Diagnostiske verktøy og tilleggskontroller for feilsøking og utviklingsformål",
     "advanced_troubleshooting_mode_title": "Feilsøkingsverktøy",
     "advanced_update_ssh_key_button": "Oppdater SSH-nøkkel",

ui/localization/messages/pt.json

@@ -77,6 +77,7 @@
     "advanced_error_reset_config": "Falha ao redefinir configuração: {error}",
     "advanced_error_set_dev_channel": "Falha ao definir estado do canal de desenvolvimento: {error}",
     "advanced_error_set_dev_mode": "Falha ao definir modo de desenvolvimento: {error}",
+    "advanced_error_set_log_level": "Falha ao definir o nível de registo: {error}",
     "advanced_error_update_ssh_key": "Falha ao atualizar chave SSH: {error}",
     "advanced_error_usb_emulation_disable": "Falha ao desativar emulação USB: {error}",
     "advanced_error_usb_emulation_enable": "Falha ao ativar emulação USB: {error}",
@@ -89,6 +90,11 @@
     "advanced_factory_reset_error": "Falha na reposição de fábrica: {error}",
     "advanced_factory_reset_success": "Reposição de fábrica iniciada. O dispositivo irá reiniciar em breve.",
     "advanced_factory_reset_title": "Reposição de Fábrica",
+    "advanced_log_level_debug": "Debug",
+    "advanced_log_level_error": "Erro",
+    "advanced_log_level_info": "Info",
+    "advanced_log_level_trace": "Trace",
+    "advanced_log_level_warning": "Aviso",
     "advanced_loopback_only_description": "Restringir o acesso à interface web apenas ao localhost (127.0.0.1)",
     "advanced_loopback_only_title": "Modo Somente Loopback",
     "advanced_loopback_warning_before": "Antes de ativar este recurso, certifique-se de ter:",
@@ -112,6 +118,8 @@
     "advanced_success_reset_config": "Configuração redefinida para o padrão com sucesso",
     "advanced_success_update_ssh_key": "Chave SSH atualizada com sucesso",
     "advanced_title": "Avançado",
+    "advanced_troubleshooting_log_level_description": "Ajuste o detalhe dos registos para diagnóstico. Níveis mais elevados podem afetar o desempenho",
+    "advanced_troubleshooting_log_level_title": "Nível de registo",
     "advanced_troubleshooting_mode_description": "Ferramentas de diagnóstico e controles adicionais para solução de problemas e fins de desenvolvimento",
     "advanced_troubleshooting_mode_title": "Modo de Solução de Problemas",
     "advanced_update_ssh_key_button": "Atualizar Chave SSH",

ui/localization/messages/ru.json

@@ -77,6 +77,7 @@
     "advanced_error_reset_config": "Не удалось сбросить конфигурацию: {error}",
     "advanced_error_set_dev_channel": "Не удалось изменить состояние dev-канала: {error}",
     "advanced_error_set_dev_mode": "Не удалось изменить режим разработчика: {error}",
+    "advanced_error_set_log_level": "Не удалось изменить уровень журналирования: {error}",
     "advanced_error_update_ssh_key": "Не удалось обновить SSH-ключ: {error}",
     "advanced_error_usb_emulation_disable": "Не удалось отключить эмуляцию USB: {error}",
     "advanced_error_usb_emulation_enable": "Не удалось включить эмуляцию USB: {error}",
@@ -89,6 +90,11 @@
     "advanced_factory_reset_error": "Сброс к заводским настройкам не удался: {error}",
     "advanced_factory_reset_success": "Сброс к заводским настройкам инициирован. Устройство скоро перезагрузится.",
     "advanced_factory_reset_title": "Сброс к заводским настройкам",
+    "advanced_log_level_debug": "Debug",
+    "advanced_log_level_error": "Ошибка",
+    "advanced_log_level_info": "Информация",
+    "advanced_log_level_trace": "Trace",
+    "advanced_log_level_warning": "Предупреждение",
     "advanced_loopback_only_description": "Ограничить доступ к веб-интерфейсу только с localhost (127.0.0.1)",
     "advanced_loopback_only_title": "Режим только loopback",
     "advanced_loopback_warning_before": "Перед включением этой функции убедитесь, что у вас есть:",
@@ -112,6 +118,8 @@
     "advanced_success_reset_config": "Конфигурация успешно сброшена по умолчанию",
     "advanced_success_update_ssh_key": "SSH-ключ успешно обновлён",
     "advanced_title": "Дополнительно",
+    "advanced_troubleshooting_log_level_description": "Настройте детализацию журналов для диагностики. Высокие уровни могут повлиять на производительность",
+    "advanced_troubleshooting_log_level_title": "Уровень журналирования",
     "advanced_troubleshooting_mode_description": "Диагностические инструменты и дополнительные элементы управления для устранения неполадок и разработки",
     "advanced_troubleshooting_mode_title": "Режим устранения неполадок",
     "advanced_update_ssh_key_button": "Обновить SSH-ключ",

ui/localization/messages/sv.json

@@ -77,6 +77,7 @@
     "advanced_error_reset_config": "Misslyckades med att återställa konfigurationen: {error}",
     "advanced_error_set_dev_channel": "Misslyckades med att ställa in status för utvecklarkanalen: {error}",
     "advanced_error_set_dev_mode": "Misslyckades med att ställa in utvecklarläge: {error}",
+    "advanced_error_set_log_level": "Misslyckades med att ställa in loggnivå: {error}",
     "advanced_error_update_ssh_key": "Misslyckades med att uppdatera SSH-nyckeln: {error}",
     "advanced_error_usb_emulation_disable": "Misslyckades med att inaktivera USB-emulering: {error}",
     "advanced_error_usb_emulation_enable": "Misslyckades med att aktivera USB-emulering: {error}",
@@ -89,6 +90,11 @@
     "advanced_factory_reset_error": "Fabriksåterställning misslyckades: {error}",
     "advanced_factory_reset_success": "Fabriksåterställning startad. Enheten startar om inom kort.",
     "advanced_factory_reset_title": "Fabriksåterställning",
+    "advanced_log_level_debug": "Debug",
+    "advanced_log_level_error": "Fel",
+    "advanced_log_level_info": "Info",
+    "advanced_log_level_trace": "Trace",
+    "advanced_log_level_warning": "Varning",
     "advanced_loopback_only_description": "Begränsa åtkomst till webbgränssnittet endast till lokal värd (127.0.0.1)",
     "advanced_loopback_only_title": "Loopback-läge",
     "advanced_loopback_warning_before": "Innan du aktiverar den här funktionen, se till att du har antingen:",
@@ -112,6 +118,8 @@
     "advanced_success_reset_config": "Konfigurationen återställdes till standardinställningarna",
     "advanced_success_update_ssh_key": "SSH-nyckeln har uppdaterats",
     "advanced_title": "Avancerat",
+    "advanced_troubleshooting_log_level_description": "Justera loggdetaljer för felsökning. Högre nivåer kan påverka prestandan",
+    "advanced_troubleshooting_log_level_title": "Loggnivå",
     "advanced_troubleshooting_mode_description": "Diagnostikverktyg och ytterligare kontroller för felsökning och utvecklingsändamål",
     "advanced_troubleshooting_mode_title": "Felsökningsläge",
     "advanced_update_ssh_key_button": "Uppdatera SSH-nyckel",

ui/localization/messages/zh-tw.json

@@ -77,6 +77,7 @@
     "advanced_error_reset_config": "重設設定失敗：{error}",
     "advanced_error_set_dev_channel": "設定開發頻道狀態失敗：{error}",
     "advanced_error_set_dev_mode": "設定開發模式失敗：{error}",
+    "advanced_error_set_log_level": "設定日誌級別失敗：{error}",
     "advanced_error_update_ssh_key": "更新 SSH 金鑰失敗：{error}",
     "advanced_error_usb_emulation_disable": "停用 USB 模擬失敗：{error}",
     "advanced_error_usb_emulation_enable": "啟用 USB 模擬失敗：{error}",
@@ -89,6 +90,11 @@
     "advanced_factory_reset_error": "恢復出廠設定失敗：{error}",
     "advanced_factory_reset_success": "已啟動恢復出廠設定。裝置將在稍後重新啟動。",
     "advanced_factory_reset_title": "恢復出廠設定",
+    "advanced_log_level_debug": "除錯",
+    "advanced_log_level_error": "錯誤",
+    "advanced_log_level_info": "資訊",
+    "advanced_log_level_trace": "追蹤",
+    "advanced_log_level_warning": "警告",
     "advanced_loopback_only_description": "將網頁介面存取限制為僅限 localhost (127.0.0.1)",
     "advanced_loopback_only_title": "單機回送 (Loopback-Only) 模式",
     "advanced_loopback_warning_before": "在啟用此功能之前，請確保您已具備：",
@@ -112,6 +118,8 @@
     "advanced_success_reset_config": "設定已成功重設為預設值",
     "advanced_success_update_ssh_key": "SSH 金鑰更新成功",
     "advanced_title": "進階",
+    "advanced_troubleshooting_log_level_description": "調整日誌詳細程度以便診斷。較高級別可能影響效能",
+    "advanced_troubleshooting_log_level_title": "日誌級別",
     "advanced_troubleshooting_mode_description": "用於故障排除和開發目的的診斷工具及額外控制項",
     "advanced_troubleshooting_mode_title": "故障排除模式",
     "advanced_update_ssh_key_button": "更新 SSH 金鑰",

ui/localization/messages/zh.json

@@ -77,6 +77,7 @@
     "advanced_error_reset_config": "重置配置失败：{error}",
     "advanced_error_set_dev_channel": "设置开发者通道状态失败：{error}",
     "advanced_error_set_dev_mode": "设置开发者模式失败：{error}",
+    "advanced_error_set_log_level": "设置日志级别失败：{error}",
     "advanced_error_update_ssh_key": "更新 SSH 密钥失败：{error}",
     "advanced_error_usb_emulation_disable": "禁用 USB 模拟失败：{error}",
     "advanced_error_usb_emulation_enable": "启用 USB 模拟失败：{error}",
@@ -89,6 +90,11 @@
     "advanced_factory_reset_error": "恢复出厂设置失败：{error}",
     "advanced_factory_reset_success": "出厂设置恢复已启动，设备即将重启。",
     "advanced_factory_reset_title": "恢复出厂设置",
+    "advanced_log_level_debug": "调试",
+    "advanced_log_level_error": "错误",
+    "advanced_log_level_info": "信息",
+    "advanced_log_level_trace": "跟踪",
+    "advanced_log_level_warning": "警告",
     "advanced_loopback_only_description": "将 Web 访问限制为仅本地主机 (127.0.0.1)。",
     "advanced_loopback_only_title": "环回模式",
     "advanced_loopback_warning_before": "在启用此功能之前，请确保您已具备以下任一条件：",
@@ -112,6 +118,8 @@
     "advanced_success_reset_config": "配置已成功恢复为默认设置。",
     "advanced_success_update_ssh_key": "SSH 密钥更新成功。",
     "advanced_title": "高级设置",
+    "advanced_troubleshooting_log_level_description": "调整日志详细程度以便诊断。较高级别可能影响性能",
+    "advanced_troubleshooting_log_level_title": "日志级别",
     "advanced_troubleshooting_mode_description": "用于故障排查和开发的诊断工具及额外控制选项。",
     "advanced_troubleshooting_mode_title": "故障排查模式",
     "advanced_update_ssh_key_button": "更新 SSH 密钥",

ui/package.json

@@ -92,7 +92,8 @@
   },
   "lint-staged": {
     "*.{ts,tsx}": "oxlint --fix --deny-warnings",
-    "*.{ts,tsx,js,jsx,json,css,md}": "oxfmt"
+    "*.{ts,tsx,js,jsx,json,css,md}": "oxfmt",
+    "localization/messages/*.json": "npm run i18n:resort"
   },
   "engines": {
     "node": "^22.21.1"

ui/src/routes/devices.$id.settings.advanced.tsx

@@ -28,6 +28,7 @@ export default function SettingsAdvancedRoute() {
   const [sshKey, setSSHKey] = useState<string>("");
   const { setDeveloperMode } = useSettingsStore();
   const [devChannel, setDevChannel] = useState(false);
+  const [defaultLogLevel, setDefaultLogLevel] = useState<string>("WARN");
   const [usbEmulationEnabled, setUsbEmulationEnabled] = useState(false);
   const [showLoopbackWarning, setShowLoopbackWarning] = useState(false);
   const [localLoopbackOnly, setLocalLoopbackOnly] = useState(false);
@@ -66,6 +67,11 @@ export default function SettingsAdvancedRoute() {
       if ("error" in resp) return;
       setLocalLoopbackOnly(resp.result as boolean);
     });
+
+    send("getDefaultLogLevel", {}, (resp: JsonRpcResponse) => {
+      if ("error" in resp) return;
+      setDefaultLogLevel(resp.result as string);
+    });
   }, [send, setDeveloperMode]);
 
   const getUsbEmulationState = useCallback(() => {
@@ -454,6 +460,37 @@ export default function SettingsAdvancedRoute() {
 
         {settings.debugMode && (
           <NestedSettingsGroup>
+            <SettingsItem
+              title={m.advanced_troubleshooting_log_level_title()}
+              description={m.advanced_troubleshooting_log_level_description()}
+            >
+              <SelectMenuBasic
+                size="SM"
+                value={defaultLogLevel}
+                options={[
+                  { label: m.advanced_log_level_error(), value: "ERROR" },
+                  { label: m.advanced_log_level_warning(), value: "WARN" },
+                  { label: m.advanced_log_level_info(), value: "INFO" },
+                  { label: m.advanced_log_level_debug(), value: "DEBUG" },
+                  { label: m.advanced_log_level_trace(), value: "TRACE" },
+                ]}
+                onChange={e => {
+                  const level = e.target.value;
+                  const previousLevel = defaultLogLevel;
+                  setDefaultLogLevel(level);
+                  send("setDefaultLogLevel", { level }, (resp: JsonRpcResponse) => {
+                    if ("error" in resp) {
+                      setDefaultLogLevel(previousLevel);
+                      notifications.error(
+                        m.advanced_error_set_log_level({ error: resp.error.data || m.unknown_error() }),
+                      );
+                      return;
+                    }
+                  });
+                }}
+              />
+            </SettingsItem>
+
             <SettingsItem
               title={m.advanced_usb_emulation_title()}
               description={m.advanced_usb_emulation_description()}