Practical Tips for Adapting Keil to 4K Displays

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Author | strongerHuang

WeChat Public Account | Embedded Special Column

Many users complain that Keil cannot adapt to (2K or 4K) high-resolution displays, especially on 4K monitors, where the menu bar and shortcut icons are very small, the windows are also small, and they appear somewhat blurry:

So, how do we solve the issues of [small icons] and [blurriness]?

Here, I will briefly explain the following environment:

• Keil MDK V5.39

• Windows 10, Windows 11 Professional Edition

• Monitor: 4K (3840×2160)

Step 1: Adjust the system scaling ratio

Right-click on the desktop -> Display settings -> System default 150%, increase this value to 200%:

This setting can solve the [small icons] issue.

Step 2: Adjust DPI scaling settings

Right-click on Keil -> Properties -> Compatibility -> Change high DPI settings -> Set to system (enhanced):

This step can resolve the issue of [blurry text].

After applying these two steps, when you open Keil again, you will find that the icons have become larger and clearer.

I recorded a video for reference:

Finally

This issue is not unique to Keil; many other similar “classic software” also suffer from this legacy problem, and the solutions are similar.

However, adapting software for high-resolution displays may introduce other issues, such as cursor and window anomalies in certain situations.

Therefore, the best resolution for this type of software is still 1920×1080 resolution

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