Java hidpi. Not all software behaves well in high-resolution mode yet. Contribute to krlvm/SwingDPI development by creating an account on GitHub. g 如何让我的Java Swing应用程序GUI在高DPI屏幕上为用户正确缩放？请看下面的截图。在顶部，你可以看到与Ubuntu的文件资源管理器图标和gedit相比，这款应用看起来有多小。在左下角，你可以大致看到应用程序的大小(并且在常规的DPI监视器上也是如此)。因此，我正在寻找一种方法，当使用高DPI监视器时 In order to make this process easier, Kali now provides a HiDPI mode. 2. On Ubuntu 20. HiDPI / GUI-scaling support for Java-Swing via the PLaF mechanism, supporting multiple L&Fs (Java 8+) - lukeu/swing-dpi Here’s the fix: Find java. ) of an existing Java Swing application look better on HiDPI displays with a scale factor larger than 1. Once upgraded to Java 9 it will work but there are some issues with switching to Java 9, see #1262 Contrary to this, for high resolution displays HiDPI rendering is enabled. Right click on it and select -> Properties Go to Compatibility tab Check Override high DPI scaling behavior. Linux 上的 HiDPI GTK+ 3 库已经实现了 HiDPI 支持。 在使用 HiDPI 显示器时，GTK 库会自动缩放应用程序。 而 Java2D 和 AWT 使用的是不支持 HiDPI 的 XLib 库。 因此，当前的 Java 应用程序在 Linux 上的 HiDPI 显示器上可能会看起来是 2 到 3 倍太小。 I'm making a modern-looking application (in the same theme/style as IntelliJ IDEA) that's DPI aware and everything should be pixel-accurate. 0 consistently crashes for me): java -jar VncViewer-1. The end result is that Matlab is tiny on my laptop screen. Learn more about: Setting the default DPI awareness for a process. Highly 引言 随着显示技术的发展，高分辨率（HiDPI）显示器变得越来越普及。 然而，对于Java应用来说，如何在HiDPI显示器上实现流畅的运行仍然是一个挑战。 本文将深入探讨如何通过Java技术，优化HiDPI环境下的应用性能，解锁新的用户体验。 I just tried out the JavaFX Hello World Example on a 4k screen on Arch Linux, but unfortunately the GUI does not scale. Since Java 9 added HiDPI compatibility, all components (such as arrows, buttons, tabs) in Substance look pixelated. Java has improved HiDPI support since Java 9, but many Swing apps still use older Java versions (e. getSystemLookAndFeelClassName ()); The problem is that on a high-DPI system, the fonts in the fr Learn how to implement HiDPI support in Java Swing applications with various look and feels for a better UI. No longer do my cus GUIs may appear small on high-resolution screens, such as 4K monitors, due to scaling problems with Java Swing applications, particularly with the I then connect with TigerVNC's v1. I'm forcing -Dsun. a. Higher dots-per-inch correspond to a more dense output. Regardless of the scaling value configured on the system, Java automatically detects it and uses it to scale the GUI accordingly. 2/JBR8, on Linux since 2019. An up to date JOSM version is required. To change default options: I downloaded and installed the latest Java 9 early access version, and was delighted to find that a Java Swing application on Windows now renders components at the correct size. Learn how to manage HiDPI display settings in Java 9+ for JTable and resolve scaling issues with Windows Look and Feel. 7. HiDPI refers to monitors with high pixels density, such as 4k monitors or laptops with a high resolution display. 7 java client (1. This mode adjusts the scaling-factor for GTK, QT and even Java based interfaces, so that the user doesn’t need to modify each one of them manually. HiDPI (High Dots Per Inch) ディスプレイとは、比較的小さい型で高解像度を誇るディスプレイのことで、Apple の "Retina Display" の名称でも知られています。 Apple の製品やハイエンドの "ultrabook" でよく使われています。 3 As @Adam Drew recommends, use run_scaled. Prior to HiDPI, the terms were: 1. I have a java desktop application which uses java swing and it works fine with normal displays. Feb 23, 2017 · Implement HiDPI graphics on Windows and Linux. There are some applications (mainly java based) that don't follow the global 2x scale I set in the screen-settings. I downloaded and installed the latest Java 9 early access version, and was delighted to find that a Java Swing application on Windows now renders components at the correct size. IDE versions 2017. On Apple laptops, they are called Retina displays. exe and/or javaw. JetBrains has set the goal to support wayland natively, and is contributing to Wakefield actively . Basics ¶ Proper HiDPI-support was added with Java 9 and some improvements were made in the following versions, so make sure you are running the latest Java version. 0) except for the size of the component on HiDPI which is larger than the image displayed. 04 on a Dell XPS 13 (2018) that has a HiDPI (UHD) Screen (3480 x 2160), I am then connecting to a UHD Dell 34" Monitor (3440 x 1440) via a USB-C DisplayPort cable. The red error decoration that appears to Xorg HiDPI HiDPI (High Dots Per Inch) displays, also known by Apple's "Retina Display" marketing name, are screens with a high resolution in a relatively small format. In HiDPI mode 4 framebuffer pixels are matched to 1 logical pixel. Look-and-feel (LAF) implementations (some LAFs, like Windows, support scaling better than others). I want to make the graphics (icons, logo etc. The following example seems to work even when I move the window from HiDPI (4K scaled 1. jar -ScalingFactor=150 Other than the commandline, you can hit F8 to get the VNC Viewer Options. 0, e. Learn how to enhance Java 9 applications for HiDPI displays with higher-resolution images for better clarity and performance. JavaFX 8 now supports Hi-DPI displ Additionally, any Java applications that use the GTK look&feel style may automatically benefit from the support of HiDPI in the GTK library while the size of the window and other components may match the GTK components which have been enlarged by 2-3x to satisfy the HiDPI requirements. But when come to ~hiDpi~ displays ( 3200*1800) whole application is too small. sh It works very well on Java Swing apps that don't scale naturally. /soapui. k. You can expect best results with even scale factors, e. Choose System for Scaling performed by: Click OK Launch your java app and tada! #webOSforever Thanks to webOS friend, FastbootOEM UPDATE: Yes JDK-9 onward enabled HiDPI support, however the Built-in L&F's at non-integer scaling levels didn't embrace it well & can look even worse than "hack it yourself in Java 8". 0. JBR stands for JetBrains Runtime, Java runtime based on OpenJDK and ma DPI scaling for Java Swing applications. JavaFX 8 now supports Hi-DPI displ 这是因为Java运行时声称自己是“DPI感知”的，但实际上并没有为AWT和Swing提供真正的支持。 Java应用程序基于像素大小进行调整和渲染，而不是正确缩放，这包括HiDPI显示器。 无论如何，这个问题最近已经解决了。 请参见 JEP 263：Windows和Linux上的HiDPI图形 和 升级。 This class describes the usage of BaseSplash. Disable Java Runtime: If you are not using features that rely on Java, consider disabling the Java runtime. This aims at providing better IDE UI scaling, especially in a multi-monitor configuration with different DPI values. , Java 8) or lack configuration to enable scaling. You can toggle it by opening ‘Kali HiDPI mode’ from the applications menu or by running kali-hidpi-mode from the terminal. All the HiDPI（High Dots Per Inch）显示器，指的是在较小尺寸下却拥有较高分辨率的显示器。 Apple 将其称作“ 视网膜屏幕 ”，这项技术主要存在于高端笔记本电脑和显示器中。 并非所有的软件都在高分辨率屏幕下工作良好。 On regular screen everything OK but not on a high-DPI display on Windows 10… it's not scaling the Java app; I am getting the right window size but with tiny little menus and icons with impossible-to-read text. This improves the clarity Until Java has learned to use Wayland natively or until the fractional scaling feature of Wayland is reworked to avoid pixel-stretching X windows, workarounds for blurry text would be to when using Sway, switch off scaling completely switch off fractional scaling ([link1] [link2]) or go back to using "pure" X session without Wayland ([link]). Learn effective methods to resolve Java Swing application sizing issues on HiDPI displays for improved visual clarity and usability. HiDPI modes JRE-managed HiDPI mode (default on macOS since JDK7, on Windows since 2018. Screen->Scaling Factor->150%. Archaic MWM in VNC with 150% scaling on the left. I'm making a modern-looking application (in the same theme/style as IntelliJ IDEA) that's DPI aware and everything should be pixel-accurate. Computed as (number of pixels in image) / (phys Dec 22, 2025 · This guide will demystify the root causes of Swing’s HiDPI scaling issues and walk you through actionable solutions to ensure your app looks crisp and properly sized on any display. 04 LTS install: sudo apt install xvfb xpra xrandr Then download run_scaled script from this zip and put it in the /usr/local/bin directory. java. HiDPI (简体中文) Jump to navigation Jump to search Related articles Font configuration HiDPI (High Dots Per Inch) 显示器，指的是在较小尺寸下却拥有较高分辨率的显示器。Apple 将其称作“视网膜 This results in a really nice viewing experience, just like on a Retina MBP. However, Matlab - a Java application - does not seem to behave nicely with this scaling, and instead uses a standard 96 dots per inch scale associated with non-HiDPI screens. Explore Java's multi-resolution image capabilities for HiDPI displays and efficient image scaling, optimizing your applications for a global audience across diverse devices. 1/10. The various icons and buttons in the Eclipse (Kepler) interface are very, very small on a laptop with a 3200x1800px screen. Dec 9, 2025 · This guide focuses on Java 11 (a long-term support, or LTS, version) and provides actionable steps to resolve scaling issues, ensuring your Java apps look sharp and usable on HiDPI displays. 渲染流程 程序-->weston 程序-->xwayland-->weston最好的方案是程序自身知道 HiDPI 的缩放比例, 可以自行放大字体, 自行选择高分辨率的图片, 会更清晰 稍差的方案是由渲染器来缩放, 对 WSLg 是 weston 以… Runtime environment based on OpenJDK for running IntelliJ Platform-based products on Windows, macOS, and Linux - JetBrains/JetBrainsRuntime Java still has no native Wayland support, so you are stuck on XWayland. my notebook with 14" display and Wi This content is targeted at developers who are looking to update desktop applications to handle dynamic display scale factor (a. 2/JBR11). Common Issues with High DPI Monitors If your Swing app isn’t DPI-aware, you’ll likely I just tried out the JavaFX Hello World Example on a 4k screen on Arch Linux, but unfortunately the GUI does not scale. The documentation says Hi-DPI support. I am using Ubuntu 18. They are mostly found in high-end laptops and monitors. Go to Tools > Options > LibreOffice > Advanced and uncheck Use a Java runtime environment. Then to launch your program, do for example run_scaled . 长长的答案： 这是因为Java运行时声明自己是“DPI感知的”，但并不真正支持AWT和Swing。 Java应用程序的大小和渲染基于像素，而不是适当缩放，这包括HiDPI显示。 不管怎么说，这个问题最近已经解决了。 请参阅问题 JEP 263: HiDPI Graphics on Windows and Linux 和 upgrade。 Bisq doesn't scale the UI on HiDPI monitors with linux since JavaFX doesn't handle the scaling in Java 8. setLookAndFeel (UIManager. However, on Linux the GUI does not consider the system scaling, and thus, it looks tiny on high-DPI displays. 8. 2 run in the new JRE-managed HiDPI mode on MS Windows 8. HiDPI（High Dots Per Inch）显示器，指的是在较小尺寸下却拥有较高分辨率的显示器。 Apple 将其称作“ 视网膜屏幕 ”，这项技术主要存在于高端笔记本电脑和显示器中。 并非所有的软件都在高分辨率屏幕下工作良好。 The user interface was completely revised to support 4k HiDPI Display monitors with automatic DPI scaling for all dialogs and toolbars as well as newly designed vector icons that render crisp at any resolution. This problem can be better solved at the L&F level, however, and some excellent 3rd party L&F's like FlatLaF and Radiance do so quite beautifully. java2d. Change Interface Settings If the MPLAB X IDE desktop looks “fuzzy”, modify the interface behavior. Customers integrating our components in their application should only have to worry about sizing correctly their application frame. g. Explore best practices and code examples. HiDPI Support – Overview ¶ This page contains information on how to optimize the JOSM interface for a high-resolution display. This is probably caused by some conflict between Substance's implementation of HiDPI and Swing's new HiDPI features. There is Project Wakefield, though. The terminology in this space can be misleading. DPI (dots-per-inch): specifies the output density of ink droplets when printing a paper. 针对现代显示标准优化 Swing 应用 在处理高 DPI 显示器时，经常被忽视的一个关键方面是 Java 虚拟机 (JVM) 与操作系统的显示缩放设置之间的交互。 Java 21 提供了一些内置功能，例如每个显示器的 DPI 感知，但开发人员需要显式配置这些设置。 Bug 252452 - HiDPI resolution of 3840x2160 NetBeans IDE scaling on Windows 8/10 Also, system graphics drivers and even the Java Run-Time Environment (JRE) could be part of the issue. Developers and users have some basic expectations for applications running on HiDPI displays: Icons and images should be smooth and preferably have details appropriate for the pixel density of the display. 75) to FullHD (scale 1. exe likely found in C:\Program Files\Java\jre (version#)\bin. Until this succeeds, you have to stick to the workarounds stated in their known issues: switch off fractional scaling I have a Java Swing program that uses the System Look And Feel: UIManager. Fixing Java 21 Swing Applications’ High-DPI Scaling Problems with Nimbus Understanding High-DPI Challenges in Modern Java Applications Developing visually appealing Java Swing applications can HiDPI (简体中文) Jump to navigation Jump to search Related articles Font configuration HiDPI (High Dots Per Inch) 显示器，指的是在较小尺寸下却拥有较高分辨率的显示器。Apple 将其称作“视网膜 我使用Java 8创建了一个程序，它在Eclipse中使用了Swing GUI。若要将图像和图标缩放到适当的大小，则获取和使用屏幕分辨率。在Eclipse中编译程序时，程序显示得非常好，一切似乎都正常运行。但是，当我将项目导出为"Runnable“并运行该程序时，图像缩放和程序外观都被关闭了。经过进一步研究，看来 I am running JMeter on HiDPI display (Macbook Pro Retina) on Linux and JMeter fonts and icons are really tiny! For rest of the system I could use font sizes and scaling factors to make it work but there is no setting for Java Swing. I'm using FlatLaf as the theme. This scales the resolution from 2/3rds of 4k to 4k. This issue arises because Swing was designed before HiDPI became mainstream, relying on pixel-based measurements that don’t scale automatically with modern display resolutions. A HiDPI resolution of 2560x1440 is backed up by a 5120x2880 (5K) framebuffer which is 4x as large as a LoDPI framebuffer would be. So these apps are really tiny on my high DPI screen with 3200x1800px. 我下载并安装了最新的Java 9 early access版本，很高兴地发现Windows上的Java Swing应用程序现在可以以正确的大小呈现组件。拥有HiDPI显示屏的客户不再需要以预期宽度和高度的一半来使用我的应用程序。然而，我注意到，在我的Swing应用程序中，我自己的图标只是被缩放到宽度和高度的两倍，使它们 However, Java Swing—despite its longevity and widespread use—often struggles with high-DPI (HiDPI) screens, resulting in tiny buttons, text, and icons. PPI (pixels-per-inch): specifies the input density of a digital image. Turn off AutoSpellcheck: in Tools > Options > Languages and Locales > Writing Aids uncheck Check spelling as you type and Check grammar as you type. 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