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FIX: Burpsuite not using full resolution

Sl4m | Last updated: Nov 29, 2020 11:41PM UTC

Hello,I am having issues with Burp suite only using 1024x768 of the screen instead of full 1080p. It opens in full screen but all the content is in the up left corner OS: BlackArch with dwm window manager on a KVM/QEMU virtual machine JRE: 14 Burpsuite version: 2020.11.1-1 I also tried to run code from java.awt dimension class to print my screen resolution and it prints 1920x1080.

Uthman, PortSwigger Agent | Last updated: Nov 30, 2020 11:23AM UTC

Could you try launching Burp from the command line with each of these (individually and all at the same time) settings in turn and let us know if there is an improvement, please? 1: -Dsun.java2d.noddraw=true 2: -Dsun.java2d.d3d=false 3: -Dswing.useflipBufferStrategy=True 4: -Dsun.java2d.ddforcevram=true 5: -Dsun.java2d.ddblit=false https://portswigger.net/burp/documentation/desktop/getting-started/launching/command-line

Sl4m | Last updated: Nov 30, 2020 05:29PM UTC

I tried your steps but unfortunately nothing changed This is a screenshot of how burp looks like : https://postimg.cc/9DX4rt4N And this is the output i get from the terminal: Your JRE appears to be version 14.0.2 from N/A Burp has not been fully tested on this platform and you may experience problems. WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by burp.ean (file:/usr/share/burpsuite/burpsuite.jar) to field javax.swing.JTree.expandedState WARNING: Please consider reporting this to the maintainers of burp.ean WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release

Uthman, PortSwigger Agent | Last updated: Dec 01, 2020 09:58AM UTC

Can you try -Dsun.java2d.opengl=true too? Have you tried a different java version?

Sl4m | Last updated: Dec 01, 2020 02:38PM UTC

Thank you for your help Uthman but i figured it out turns out my window manager DWM is the one causing the problem and i needed to have this environment variable set to 1 : _JAVA_AWT_WM_NONREPARENTING=1 https://wiki.archlinux.org/index.php/Java#Gray_window,_applications_not_resizing_with_WM,_menus_immediately_closing

Uthman, PortSwigger Agent | Last updated: Dec 01, 2020 02:46PM UTC

Thanks a lot for sharing your findings! This will surely help another user.

Abdelrahman | Last updated: Jul 15, 2024 09:03PM UTC

Thanks!

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