diff --git a/internal/uidriver/glfw/input.go b/internal/uidriver/glfw/input.go
index beef9bf75..19c48fd6b 100644
--- a/internal/uidriver/glfw/input.go
+++ b/internal/uidriver/glfw/input.go
@@ -333,8 +333,9 @@ func (i *Input) update(window *glfw.Window, context driver.UIContext) {
 			i.mouseButtonPressed[gb] = window.GetMouseButton(gb) == glfw.Press
 		}
 		cx, cy = window.GetCursorPos()
-		cx = i.ui.toDeviceIndependentPixel(cx)
-		cy = i.ui.toDeviceIndependentPixel(cy)
+		// TODO: This is tricky. Rename the function?
+		cx = i.ui.fromGLFWMonitorPixel(cx)
+		cy = i.ui.fromGLFWMonitorPixel(cy)
 		return nil
 	})
 
diff --git a/internal/uidriver/glfw/ui.go b/internal/uidriver/glfw/ui.go
index 03ddf439d..c782e9cd1 100644
--- a/internal/uidriver/glfw/ui.go
+++ b/internal/uidriver/glfw/ui.go
@@ -22,6 +22,7 @@ package glfw
 import (
 	"fmt"
 	"image"
+	"math"
 	"os"
 	"runtime"
 	"sync"
@@ -143,12 +144,12 @@ func initialize() error {
 		panic("glfw: glfw.CreateWindow must not return nil")
 	}
 
-	// Create a window and set it: this affects toDeviceIndependentPixel and deviceScaleFactor.
+	// Create a window and set it: this affects fromGLFWMonitorPixel and deviceScaleFactor.
 	theUI.window = w
 	theUI.initMonitor = currentMonitor(w)
 	v := theUI.initMonitor.GetVideoMode()
-	theUI.initFullscreenWidthInDP = int(theUI.toDeviceIndependentPixel(float64(v.Width)))
-	theUI.initFullscreenHeightInDP = int(theUI.toDeviceIndependentPixel(float64(v.Height)))
+	theUI.initFullscreenWidthInDP = int(theUI.fromGLFWMonitorPixel(float64(v.Width)))
+	theUI.initFullscreenHeightInDP = int(theUI.fromGLFWMonitorPixel(float64(v.Height)))
 	theUI.window.Destroy()
 	theUI.window = nil
 
@@ -398,8 +399,8 @@ func (u *UserInterface) ScreenSizeInFullscreen() (int, int) {
 	var w, h int
 	_ = u.t.Call(func() error {
 		v := currentMonitor(u.window).GetVideoMode()
-		w = int(u.toDeviceIndependentPixel(float64(v.Width)))
-		h = int(u.toDeviceIndependentPixel(float64(v.Height)))
+		w = int(u.fromGLFWMonitorPixel(float64(v.Width)))
+		h = int(u.fromGLFWMonitorPixel(float64(v.Height)))
 		return nil
 	})
 	return w, h
@@ -792,17 +793,19 @@ func (u *UserInterface) updateSize() {
 			if u.isFullscreen() {
 				v := currentMonitor(u.window).GetVideoMode()
 				ww, wh := v.Width, v.Height
-				w = u.toDeviceIndependentPixel(float64(ww))
-				h = u.toDeviceIndependentPixel(float64(wh))
+				w = u.fromGLFWMonitorPixel(float64(ww))
+				h = u.fromGLFWMonitorPixel(float64(wh))
 			} else {
 				// Instead of u.windowWidth and u.windowHeight, use the actual window size here.
 				// On Windows, the specified size at SetSize and the actual window size might not
 				// match (#1163).
 				ww, wh := u.window.GetSize()
-				// TODO: Is this correct?
-				w = u.toDeviceIndependentPixel(float64(ww))
-				h = u.toDeviceIndependentPixel(float64(wh))
+				w = u.fromGLFWPixel(float64(ww))
+				h = u.fromGLFWPixel(float64(wh))
 			}
+			// On Linux/UNIX, further adjusting is required (#1307).
+			w = math.Ceil(u.toFramebufferPixel(w))
+			h = math.Ceil(u.toFramebufferPixel(h))
 			return nil
 		})
 		u.context.Layout(w, h)
@@ -1152,7 +1155,7 @@ func (u *UserInterface) SetInitFocused(focused bool) {
 }
 
 func (u *UserInterface) monitorPosition() (int, int) {
-	// TODO: toDeviceIndependentPixel might be required.
+	// TODO: fromGLFWMonitorPixel might be required.
 	return currentMonitor(u.window).GetPos()
 }
 
diff --git a/internal/uidriver/glfw/ui_darwin.go b/internal/uidriver/glfw/ui_darwin.go
index 436cd4578..33ebd0943 100644
--- a/internal/uidriver/glfw/ui_darwin.go
+++ b/internal/uidriver/glfw/ui_darwin.go
@@ -45,7 +45,7 @@ import (
 	"github.com/hajimehoshi/ebiten/internal/glfw"
 )
 
-func (u *UserInterface) toDeviceIndependentPixel(x float64) float64 {
+func (u *UserInterface) fromGLFWMonitorPixel(x float64) float64 {
 	return x
 }
 
diff --git a/internal/uidriver/glfw/ui_unix.go b/internal/uidriver/glfw/ui_unix.go
index c9ff3c23d..05e821adb 100644
--- a/internal/uidriver/glfw/ui_unix.go
+++ b/internal/uidriver/glfw/ui_unix.go
@@ -22,8 +22,8 @@ import (
 	"github.com/hajimehoshi/ebiten/internal/glfw"
 )
 
-// toDeviceIndependentPixel must be called from the main thread.
-func (u *UserInterface) toDeviceIndependentPixel(x float64) float64 {
+// fromGLFWMonitorPixel must be called from the main thread.
+func (u *UserInterface) fromGLFWMonitorPixel(x float64) float64 {
 	return x / u.deviceScaleFactor()
 }
 
@@ -37,6 +37,11 @@ func (u *UserInterface) toGLFWPixel(x float64) float64 {
 	return x
 }
 
+// toFramebufferPixel must be called from the main thread.
+func (u *UserInterface) toFramebufferPixel(x float64) float64 {
+	return x / u.deviceScaleFactor()
+}
+
 func (u *UserInterface) adjustWindowPosition(x, y int) (int, int) {
 	return x, y
 }
diff --git a/internal/uidriver/glfw/ui_windows.go b/internal/uidriver/glfw/ui_windows.go
index 2aeb4410f..ad1e2a35e 100644
--- a/internal/uidriver/glfw/ui_windows.go
+++ b/internal/uidriver/glfw/ui_windows.go
@@ -99,8 +99,8 @@ func getMonitorInfoW(hMonitor uintptr, lpmi *monitorInfo) error {
 	return nil
 }
 
-// toDeviceIndependentPixel must be called from the main thread.
-func (u *UserInterface) toDeviceIndependentPixel(x float64) float64 {
+// fromGLFWMonitorPixel must be called from the main thread.
+func (u *UserInterface) fromGLFWMonitorPixel(x float64) float64 {
 	return x / u.deviceScaleFactor()
 }