When I close the GUI window of either Xmgr or GMV, the Xvnc server immediately crashes, and I cannot reconnect to it unless I SSH into the machine, become root, and restart the Xvnc service using:
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service vncserver@:1.service restart
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ABRT has detected 1 problem(s). For more info run: abrt-cli list --since 1547765235
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# abrt-cli list --since 1547765235
id f0c3a4d4f83229b5aaa5120a5e03b9847a088ca6
reason: Xvnc killed by SIGABRT
time: Wed 12 Dec 2018 02:32:58 PM MST
cmdline: /usr/bin/Xvnc :1 -auth /home/lobo/.Xauthority -desktop 'kelvin:1 (lobo)' -fp catalogue:/etc/X11/fontpath.d -geometry 1920x1080 -pn -rfbauth /home/lobo/.vnc/passwd -rfbport 5901 -rfbwait 30000
package: tigervnc-server-minimal-1.8.0-13.el7
uid: 511 (lobo)
count: 7
Directory: /var/spool/abrt/ccpp-2018-12-12-14:32:58-6901
1. I tried rolling back the "yum update" that caused the problem. Unfortunately it did not work because it said the older versions of the packages were no longer available in the repos.
2. I searched Google but I wasn't able to find much. This thread on the RedHat forums looked like maybe a similar issue: https://bugzilla.redhat.com/show_bug.cgi?id=1660513 (However, I am not running my programs as root, and they are in Motif, not Tcl.)
3. I waited about a month and then ran "yum update" again in the hope that maybe some package would magically fix the issue. Sadly, only a few packages were updated and the problem is still present.
Has anyone else experienced this kind of crash with Xvnc recently after running "yum update"? If so, do you know of a solution? Thanks for any help you can provide, and please let me know if more information would be useful in diagnosing or troubleshooting the problem.