diff --git a/internal/atlas/image.go b/internal/atlas/image.go
index da6943789..cf21e3dfd 100644
--- a/internal/atlas/image.go
+++ b/internal/atlas/image.go
@@ -866,7 +866,7 @@ func SwapBuffers(graphicsDriver graphicsdriver.Graphics) error {
 	}()
 
 	if debug.IsDebug {
-		debug.FrameLogf("Internal image sizes:\n")
+		debug.Logf("Internal image sizes:\n")
 		imgs := make([]*graphicscommand.Image, 0, len(theBackends))
 		for _, backend := range theBackends {
 			imgs = append(imgs, backend.image)
diff --git a/internal/debug/debug.go b/internal/debug/debug.go
index f0c6e1d60..93cd8d1d6 100644
--- a/internal/debug/debug.go
+++ b/internal/debug/debug.go
@@ -14,8 +14,7 @@
 
 package debug
 
-// FrameLogger defines the interface for logging debug information for each frame.
-type FrameLogger interface {
-	FrameLogf(format string, args ...any)
+type Logger interface {
+	Logf(format string, args ...any)
 	Flush()
 }
diff --git a/internal/debug/debug_ebitenginedebug.go b/internal/debug/debug_ebitenginedebug.go
index 853481ee0..8f6ae144d 100644
--- a/internal/debug/debug_ebitenginedebug.go
+++ b/internal/debug/debug_ebitenginedebug.go
@@ -23,32 +23,30 @@ import (
 
 const IsDebug = true
 
-var theFrameLogger = &frameLogger{}
+var theLogger = &logger{}
 
 var flushM sync.Mutex
 
-// FrameLogf calls the current global logger's FrameLogf.
-// FrameLogf buffers the arguments and doesn't dump the log immediately.
+// Logf calls the current global logger's Logf.
+// Logf buffers the arguments and doesn't dump the log immediately.
 // You can dump logs by calling SwitchLogger and Flush.
 //
-// FrameLogf is not concurrent safe.
-// FrameLogf and SwitchFrameLogger must be called from the same goroutine.
-func FrameLogf(format string, args ...any) {
-	theFrameLogger.FrameLogf(format, args...)
+// Logf is not concurrent safe.
+func Logf(format string, args ...any) {
+	theLogger.Logf(format, args...)
 }
 
-// SwitchFrameLogger sets a new logger as the current logger and returns the original global logger.
+// SwitchLogger sets a new logger as the current logger and returns the original global logger.
 // The new global logger and the returned logger have separate statuses, so you can use them for different goroutines.
 //
-// SwitchFrameLogger and a returned Logger are not concurrent safe.
-// FrameLogf and SwitchFrameLogger must be called from the same goroutine.
-func SwitchFrameLogger() FrameLogger {
-	current := theFrameLogger
-	theFrameLogger = &frameLogger{}
+// SwitchLogger and a returned Logger are not concurrent safe.
+func SwitchLogger() Logger {
+	current := theLogger
+	theLogger = &logger{}
 	return current
 }
 
-type frameLogger struct {
+type logger struct {
 	items []logItem
 }
 
@@ -57,14 +55,14 @@ type logItem struct {
 	args   []any
 }
 
-func (l *frameLogger) FrameLogf(format string, args ...any) {
+func (l *logger) Logf(format string, args ...any) {
 	l.items = append(l.items, logItem{
 		format: format,
 		args:   args,
 	})
 }
 
-func (l *frameLogger) Flush() {
+func (l *logger) Flush() {
 	// Flushing is protected by a mutex not to mix another logger's logs.
 	flushM.Lock()
 	defer flushM.Unlock()
diff --git a/internal/debug/debug_notebitenginedebug.go b/internal/debug/debug_notebitenginedebug.go
index e8fc57030..7f7c7509d 100644
--- a/internal/debug/debug_notebitenginedebug.go
+++ b/internal/debug/debug_notebitenginedebug.go
@@ -18,17 +18,17 @@ package debug
 
 const IsDebug = false
 
-func FrameLogf(format string, args ...any) {
+func Logf(format string, args ...any) {
 }
 
-func SwitchFrameLogger() FrameLogger {
-	return dummyFrameLogger{}
+func SwitchLogger() Logger {
+	return dummyLogger{}
 }
 
-type dummyFrameLogger struct{}
+type dummyLogger struct{}
 
-func (dummyFrameLogger) FrameLogf(format string, args ...any) {
+func (dummyLogger) Logf(format string, args ...any) {
 }
 
-func (dummyFrameLogger) Flush() {
+func (dummyLogger) Flush() {
 }
diff --git a/internal/gamepad/gamepad_linux.go b/internal/gamepad/gamepad_linux.go
index 17fd00a13..d97d43970 100644
--- a/internal/gamepad/gamepad_linux.go
+++ b/internal/gamepad/gamepad_linux.go
@@ -54,9 +54,6 @@ func (g *nativeGamepadsImpl) init(gamepads *gamepads) error {
 		if err == unix.ENOENT {
 			return nil
 		}
-		if err == unix.EPERM {
-			return nil
-		}
 		return fmt.Errorf("gamepad: Stat failed: %w", err)
 	}
 	if stat.Mode&unix.S_IFDIR == 0 {
diff --git a/internal/graphicscommand/commandqueue.go b/internal/graphicscommand/commandqueue.go
index 7176cb240..0f24dbf42 100644
--- a/internal/graphicscommand/commandqueue.go
+++ b/internal/graphicscommand/commandqueue.go
@@ -197,7 +197,7 @@ func (q *commandQueue) Flush(graphicsDriver graphicsdriver.Graphics, endFrame bo
 		}
 	}
 
-	logger := debug.SwitchFrameLogger()
+	logger := debug.SwitchLogger()
 
 	var flushErr error
 	runOnRenderThread(func() {
@@ -223,7 +223,7 @@ func (q *commandQueue) Flush(graphicsDriver graphicsdriver.Graphics, endFrame bo
 }
 
 // flush must be called the render thread.
-func (q *commandQueue) flush(graphicsDriver graphicsdriver.Graphics, endFrame bool, logger debug.FrameLogger) (err error) {
+func (q *commandQueue) flush(graphicsDriver graphicsdriver.Graphics, endFrame bool, logger debug.Logger) (err error) {
 	// If endFrame is true, Begin/End should be called to ensure the framebuffer is swapped.
 	if len(q.commands) == 0 && !endFrame {
 		return nil
@@ -231,7 +231,7 @@ func (q *commandQueue) flush(graphicsDriver graphicsdriver.Graphics, endFrame bo
 
 	es := q.indices
 	vs := q.vertices
-	logger.FrameLogf("Graphics commands:\n")
+	logger.Logf("Graphics commands:\n")
 
 	if err := graphicsDriver.Begin(); err != nil {
 		return err
@@ -294,7 +294,7 @@ func (q *commandQueue) flush(graphicsDriver graphicsdriver.Graphics, endFrame bo
 			if err := c.Exec(q, graphicsDriver, indexOffset); err != nil {
 				return err
 			}
-			logger.FrameLogf("  %s\n", c)
+			logger.Logf("  %s\n", c)
 			// TODO: indexOffset should be reset if the command type is different
 			// from the previous one. This fix is needed when another drawing command is
 			// introduced than drawTrianglesCommand.
diff --git a/internal/graphicscommand/image.go b/internal/graphicscommand/image.go
index 87ff76eff..be0eecf28 100644
--- a/internal/graphicscommand/image.go
+++ b/internal/graphicscommand/image.go
@@ -234,6 +234,6 @@ func LogImagesInfo(images []*Image) {
 		if i.screen {
 			screen = " (screen)"
 		}
-		debug.FrameLogf("  %d: (%d, %d)%s\n", i.id, w, h, screen)
+		debug.Logf("  %d: (%d, %d)%s\n", i.id, w, h, screen)
 	}
 }
diff --git a/internal/ui/context.go b/internal/ui/context.go
index bf9ccce50..f7d2cb607 100644
--- a/internal/ui/context.go
+++ b/internal/ui/context.go
@@ -95,7 +95,7 @@ func (c *context) updateFrameImpl(graphicsDriver graphicsdriver.Graphics, update
 		return nil
 	}
 
-	debug.FrameLogf("----\n")
+	debug.Logf("----\n")
 
 	if err := atlas.BeginFrame(graphicsDriver); err != nil {
 		return err
@@ -133,7 +133,7 @@ func (c *context) updateFrameImpl(graphicsDriver graphicsdriver.Graphics, update
 		updateCount = 1
 		c.updateCalled = true
 	}
-	debug.FrameLogf("Update count per frame: %d\n", updateCount)
+	debug.Logf("Update count per frame: %d\n", updateCount)
 
 	// Update the game.
 	for i := 0; i < updateCount; i++ {