In my case the crash happens randomly, when I'm working with NetBeans 21. I didn't any system updates. Perhaps the NetBeans made auto update.
My log lile: [ 356.402] (EE) [ 356.402] (EE) Backtrace: [ 356.403] (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x13c) [0x5594ee295fdc] [ 356.404] (EE) 1: /lib/x86_64-linux-gnu/libpthread.so.0 (funlockfile+0x60) [0x7f37ec080420] [ 356.405] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (__libc_malloc+0x11e) [0x7f37ebf121fe] [ 356.405] (EE) 3: /usr/lib/xorg/Xorg (SetGlyphPicture+0x15d) [0x5594ee201ced] [ 356.405] (EE) 4: /usr/lib/xorg/Xorg (AddTraps+0x4b5a) [0x5594ee20bb5a] [ 356.405] (EE) 5: /usr/lib/xorg/Xorg (SendErrorToClient+0x354) [0x5594ee134144] [ 356.405] (EE) 6: /usr/lib/xorg/Xorg (InitFonts+0x3b4) [0x5594ee1381f4] [ 356.406] (EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf3) [0x7f37ebe9c083] [ 356.406] (EE) 8: /usr/lib/xorg/Xorg (_start+0x2e) [0x5594ee121ace] [ 356.406] (EE) [ 356.406] (EE) Segmentation fault at address 0x0 [ 356.406] (EE) Fatal server error: [ 356.406] (EE) Caught signal 11 (Segmentation fault). Server aborting [ 356.406] (EE) [ 356.406] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 356.406] (EE) Please also check the log file at "/home/user-name/.local/share/xorg/Xorg.0.log" for additional information. [ 356.406] (EE) [ 356.406] (II) AIGLX: Suspending AIGLX clients for VT switch [ 356.425] (EE) Server terminated with error (1). Closing log file. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2060354 Title: Segfault in 2:21.1.4-2ubuntu1.7-22.04.9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/2060354/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs