Package: nx-libs Version: 3.5.99.26-3 When I connected to the X2go server, the session was killed abruptly. I found the X2go server log. It showed that x2goagent hit SEGFAULT. I got the coredump: Core was generated by `x2goagent -nolisten tcp -nolisten tcp -dpi 96 -D > -auth /home/Ricky/.Xauthority'. > Program terminated with signal SIGSEGV, Segmentation fault. > #0 0x0000555ac58c043f in __glXDeassociateContext (glxc=0x555ac7fa0710) at > GL/glx/glxutil.c:89 > Downloading 0.00 MB source file > /usr/src/debug/nx-libs-3.5.99.26-3.fc35.x86_64/nx-X11/programs/Xserver/GL/glx/glxutil.c > 89 for ( curr = glxc->drawPriv->drawGlxc > (gdb) bt > #0 0x0000555ac58c043f in __glXDeassociateContext (glxc=0x555ac7fa0710) at > GL/glx/glxutil.c:89 > #1 0x0000555ac57eaec9 in ClientGone (clientIndex=1, id=) > at hw/nxagent/../../GL/glx/glxext.c:120 > #2 0x0000555ac57ef433 in FreeClientResources (client=0x555ac7fa0070) at > hw/nxagent/../../dix/resource.c:765 > #3 0x0000555ac57dfdd1 in FreeClientResources (client=0x555ac7fa0070) at > hw/nxagent/../../dix/resource.c:740 > #4 xorg_CloseDownClient (client=client@entry=0x555ac7fa0070) at > hw/nxagent/../../dix/dispatch.c:3554 > #5 0x0000555ac57e1260 in CloseDownClient (client=0x555ac7fa0070) at > hw/nxagent/NXdispatch.c:1006 > #6 Dispatch () at hw/nxagent/NXdispatch.c:522 > #7 0x0000555ac57bebd1 in main (argc=, argv= out>, envp=) at dix/main.c:350 > (gdb) --- Server: [Ricky@t20:~]$ rpm -qa | grep x2go x2goserver-common-4.1.0.3-13.fc35.noarch x2goagent-4.1.0.3-13.fc35.x86_64 x2goserver-xsession-4.1.0.3-13.fc35.noarch x2goserver-4.1.0.3-13.fc35.x86_64 [Ricky@t20:~]$ rpm -qa | grep nx-libs nx-libs-3.5.99.26-3.fc35.x86_64 [Ricky@t20:~]$ uname -nr t20 5.15.12-200.fc35.x86_64 Client: [Ricky@xps:~]$ rpm -qa | grep x2go x2goclient-4.1.2.2-5.fc35.x86_64 [Ricky@xps:~]$ uname -nr xps 5.15.12-200.fc35.x86_64