Oracle JDeveloper 4K Display (3840×2160) Resolution Problem on Windows 10

When I moved to Dell XPS laptop … YES! It’s absolutely better than Mac-Pro 🙂 

I had a serious problem about JDeveloper user interface on Windows 10 which was a UI scale problem.

Problems:

• Oracle JDeveloper (jdev) buttons,icons,menu is too small
• Fonts are too small.
• It’s impossible to develop even “Hello World” 🙂

Environment:

• Windows 10 (x64)
• Java 1.7.080
• JDeveloper 12c (12.1.3) –> Works for other 12c JDeveloper Versions: (12.2.x, 12.1.x)
• Screen Resoultion: 3840×2160 ( 4K )

---

First Solution (Up to Date – 2021)

The simple way; Create a shortcut for JDeveloper on desktop then right click on it; Select “Properties” and go to “Compability” tab, find “Change high DPI settings” button at bottom and click on it. Check the option “Override high DPI scaling behavior. Scaling performed by: System”. Finally click OK, click Apply! (Check below screencapture for your reference)
That is it; you are now able to use JDeveloper for your 4K or 2K display. If it is not worked for you try below manual solution. Both worked for me!

---

Here is the second solution for JDeveloper: (Works for every executable JAVA apps) (Netbeans, Eclipse, JDeveloper, SOAPUI)

Follow below steps to get BEST practice for JDeveloper Screen Quality …Till Oracle Support 4K High Resolution Laptops for JDeveloper 😉

1. Add new registry key to REGEDIT as below:

PATH --> HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SideBySide

Select New (Left Click) –> QWORD (64-bit) Value

• Value Name: PreferExternalManifest
• Value Data: 1

2. Go to JDeveloper installation path and find “jdev64W.exe” file under $MW_HOME\jdeveloper\jdev\bin folder. (My folder path: D:\oracle\MiddlewareSOA12130qs\jdeveloper\jdev\bin\)

3. Create new text file in this folder and name it exactly as “jdev64W.exe.manifest” by changing its extension. (Reference below picture)

4. Edit “jdev64W.exe.manifest” file content as below and save it.

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
<description>eclipse</description>
<trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
<security>
<requestedPrivileges>
<requestedExecutionLevel xmlns:ms_asmv3="urn:schemas-microsoft-com:asm.v3"
level="asInvoker"
ms_asmv3:uiAccess="false">
</requestedExecutionLevel>
</requestedPrivileges>
</security>
</trustInfo>
<asmv3:application>
<asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">
<ms_windowsSettings:dpiAware xmlns:ms_windowsSettings="http://schemas.microsoft.com/SMI/2005/WindowsSettings">false</ms_windowsSettings:dpiAware>
</asmv3:windowsSettings>
</asmv3:application>
</assembly>

5. Edit font sizes:

Go to your $JDEV_USER_DIR\system12.1.3.XXX\o.jdeveloper path and find ide.properties file. (My path: D:\Oracle\MY_JDEV_USER_DIR\system12.1.3.0.41.140521.1008\o.jdeveloper)

Change below font setting parameters from 10 to 14pt. (It’s up to you, but I’ve tested all and I think 14pt is the best ergonomic choice)

Ide.FontSize=14
Ide.FontSize.Aqua=14

6. That’s all. Run JDev by executing “jdev64W.exe” file. (You can create a shortcut on your Desktop)

If you like the solution, please share your thoughts and share the solution with others. Thanks in advance. Keep coding 🙂

BEFORE:

AFTER:

Solution documented for Oracle JDeveloper 12c (by myself).

Contributor and Extender: M.Fevzi Korkutata