DPI 代表每英寸点数。它用于表示屏幕或显示分辨率。您可以在显示(Display)设置中了解笔记本电脑屏幕或显示器的DPI 。Surface Pro显示器是高DPI显示器(DPI)之一。当您将Surface Book、Surface Pro 3等此类设备与外接显示器一起使用时，您可能会遇到各种问题，例如Windows 10元素（图标、工具栏、应用程序等）也会变得模糊大，或太小。连接多台显示器(connect multiple monitors)时也会出现这些症状具有不同的显示分辨率。此问题的另一个原因是硬件配置的更改。
系统会在您登录设备后确定显示分辨率。需要注销，因为它会重置用户的显示信息。这就是为什么在同一登录会话期间对接和取消对接设备会导致Windows机器上的扩展问题。例如，如果您通过远程桌面连接登录会话，然后直接连接而不注销第一个会话，您可能会遇到远程桌面的高 DPI 问题。
在开始之前，请注销并重新登录系统。如果您对配置进行了任何更改，它将解决问题。
(Fix Windows)修复高 DPI 设备的Windows缩放问题
在Windows 11中，执行以下操作来修复高 DPI 设备的缩放问题：(Scaling)
- 打开 Windows 11 设置
- 打开辅助功能设置
- 单击比例 > 文本大小。
- 移动滑块以更改文本(Text)大小。
在Windows 10中，执行以下操作来修复高 DPI 设备的缩放问题：(Scaling)
- 打开设置(Settings)>轻松访问(Ease of Access)
- 在这里，在Display下，您可以更改应用程序、文本和其他项目的大小。
- 您将在此处找到用于不同显示的滑块。
- 调整它以修复不同连接设备上的缩放问题。
这应该会有所帮助。
更改(Change)特定应用的高DPI设置(DPI)
- 为此，请在Windows搜索栏中输入应用名称并右键单击它，然后选择“打开文件位置(Open file location)”。
- 之后右键单击程序文件并选择属性。
- 现在，单击“兼容性(Compatibility)”选项卡中的“更改 DPI 设置(Change DPI settings)”按钮。
- 将打开一个新窗口，您必须在其中选中复选框“覆盖高 DPI 缩放行为，缩放由(Override high DPI scaling behavior, scaling performed by)”
- 接下来，在下拉菜单中选择“应用程序”。(“Application)
- 单击确定。
阅读(Read)： GPU 缩放与显示缩放解释。
检查应用程序是否支持 DPI(DPI-aware)
这使您可以确定系统上不同应用程序的DPI支持。您可以在任务管理器中查看应用程序的 DPI 感知模式。(view the DPI awareness mode of applications)
在4K(resolution of 4K)及更高分辨率的显示器推出后，屏幕分辨率的问题变得更加普遍。当用户将这些更高分辨率的显示器与标准或更旧的显示器混合使用时，他们会遇到屏幕分辨率问题和Microsoft Office的模糊性。以下方法可以帮助您解决此问题。
- 检查更新是否应用于您的Windows 10系统和Microsoft Office 2016应用程序。如果您遇到特定问题，请检查是否已在最新更新中解决。
- 当您使用多台显示器时，匹配屏幕分辨率至关重要。为此，所有显示器都应具有相似的屏幕分辨率。本机和外部设备的分辨率之间的差异越大，出错的可能性就越大。
- 如果您有多个桌面，您应该更喜欢使用UWP（通用 Windows 平台(Universal Windows Platform)）应用程序。UWP 应用在Windows 10上不显示缩放问题。
屏幕缩放是复杂问题之一。没有针对Windows中所有(Windows)DPI缩放问题的单一解决方案。但是，随着每次更新，Microsoft都会改进Windows，以便可以最大限度地减少对接和取消对接方案中的缩放问题。
相关文章：(Related post: )自动修复模糊字体和应用程序(Fix Blurry fonts and apps automatically)。
How to fix Windows Scaling issues for High-DPI devices
DPI stands for Dots Per Inch. It is used to represent thе screen or display resolution. You can know the DPI of your laptop screen or monitor in the Display ѕettings. The Surface Prо display is among the high DPІ displays. When you use such devices, like Surface Book, Surface Pro 3, etc., together with the external monitors, you may get various issues, such as the Windows 10 elements (icons, tоolbars, apрs, etc.) bеcome a blur, too largе, or too small. These symptoms can also appear when you connect multiple monitors with different display resolutions. Another cause of this problem is the change in the hardware configuration.
A system determines the display resolution after you log into your device. Logging off is required because it resets the user’s display information. That’s why docking and undocking the devices during the same login session can cause scaling problems on a Windows machine. For example, if you log into a session via a remote desktop connection and later connects directly without logging off the first session, you may experience high DPI issues with the remote desktop.
Before you begin, log out and log back into the system. If you have done any changes in configuration, it will fix the issue.
Fix Windows scaling issues for high-DPI devices
In Windows 11 do the following to fix Scaling issues for high-DPI devices:
- Open Windows 11 Settings
- Open Accessibility settings
- Click on Scale > Text size.
- Move the slider to change the Text size.
In Windows 10 do the following to fix Scaling issues for high-DPI devices:
- Open Settings > Ease of Access
- Here, under Display, you can change the size of apps, text, and other items.
- You will find a slider here for different displays.
- Adjust it to fix the scaling issues on different connected devices.
This should help.
Change high DPI settings for a particular app
- To do this, type the app name in the Windows search bar and right-click on it, and select “Open file location.”
- After that right-click on the program file and select Properties.
- Now, click the “Change DPI settings” button in the “Compatibility” tab.
- A new window will open in which you have to select the checkbox, “Override high DPI scaling behavior, scaling performed by“
- Next, select the “Application” in the drop-down menu.
- Click OK.
Read: GPU Scaling vs Display Scaling explained.
Check whether the applications are DPI-aware or not
This lets you determine the DPI support of different applications on your system. You can view the DPI awareness mode of applications in the Task Manager.
The issue of screen resolution has become more common after the introduction of the monitors with a resolution of 4K and higher. When the users mix these higher resolution monitors with the standard or older ones, they experience screen resolution issues and blurriness of Microsoft Office. The following methods can help you solve this issue.
- Check whether the updates are applied to your Windows 10 system and Microsoft Office 2016 applications or not. If you are facing a particular issue, check if it has been resolved in the latest update or not.
- When you use multiple monitors, it is crucial to match the screen resolutions. For this, all the monitors should have similar screen resolutions. The greater the difference between the native and external devices’ resolution is, the more likely are the chances of error.
- If you have multiple desktops, you should prefer using UWP (Universal Windows Platform) applications. UWP apps do not show scaling issues on Windows 10.
Screen scaling is among the complex problems. There is no single fix for all DPI scaling issues in Windows. However, with every update, Microsoft improves Windows so that the scaling issues in docking and undocking scenarios can be minimized.
Related post: Fix Blurry fonts and apps automatically.
