[Bug 2113934] Re: A fatal error has been detected by the Java Runtime Environment

Vladimir Petko 2113934 at bugs.launchpad.net
Wed Apr 29 21:59:28 UTC 2026


Hi,

This looks like an upstream issue related to Wayland support in OpenJDK.
It can be worked around by setting GDK_BACKEND=x11 in your environment.

Best Regards, 
 Vladimir. 

** Changed in: openjdk-lts (Ubuntu)
       Status: New => Won't Fix

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https://bugs.launchpad.net/bugs/2113934

Title:
  A fatal error has been detected by the Java Runtime Environment

Status in openjdk-lts package in Ubuntu:
  Won't Fix

Bug description:
  (java:27246): Gdk-CRITICAL **: 14:05:04.146: gdk_x11_display_set_window_scale: assertion 'GDK_IS_X11_DISPLAY (display)' failed
  #
  # A fatal error has been detected by the Java Runtime Environment:
  #
  #  SIGSEGV (0xb) at pc=0x0000000000000003, pid=27246, tid=27288
  #
  # JRE version: OpenJDK Runtime Environment (11.0.27+6) (build 11.0.27+6-post-Ubuntu-0ubuntu124.04)
  # Java VM: OpenJDK 64-Bit Server VM (11.0.27+6-post-Ubuntu-0ubuntu124.04, mixed mode, sharing, tiered, compressed oops, g1 gc, linux-amd64)
  # Problematic frame:
  # C  0x0000000000000003
  #
  # No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
  #
  # An error report file with more information is saved as:
  # /home/halili/NetBeansProjects/mooc-java-programming-ii/part14-Part14_04.UnfairAdvertisement/hs_err_pid27246.log
  #
  # If you would like to submit a bug report, please visit:
  #   https://bugs.launchpad.net/ubuntu/+source/openjdk-lts
  # The crash happened outside the Java Virtual Machine in native code.
  # See problematic frame for where to report the bug.
  #

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