Description of problem: Playing any video with gthumb or vlc causes the gnome session to return to the gdm login screen. The problem doesn't occur with totem(videos) How reproducible: Steps to Reproduce: 1. Open any video with either gthumb or vlc Actual results: gnome shell appears to terminate and the gdm login prompt appears Expected results: video plays normally Additional info: Problem started after updates yesterday. abrt shows nothing. journalctl shows this: Nov 24 02:09:36 dell-lt /usr/libexec/gdm-x-session[14957]: (EE) Segmentation fault at address 0x0 Nov 24 02:09:36 dell-lt /usr/libexec/gdm-x-session[14957]: (EE) Nov 24 02:09:36 dell-lt /usr/libexec/gdm-x-session[14957]: Fatal server error: Nov 24 02:09:36 dell-lt /usr/libexec/gdm-x-session[14957]: (EE) Caught signal 11 (Segmentation fault). Server aborting Nov 24 02:09:36 dell-lt /usr/libexec/gdm-x-session[14957]: (EE) Nov 24 02:09:36 dell-lt /usr/libexec/gdm-x-session[14957]: (EE) Nov 24 02:09:36 dell-lt /usr/libexec/gdm-x-session[14957]: Please consult the Fedora Project support
I just noticed that if I log in using gnome on wayland session then gthumb and vlc work fine. So problem is only happening with gnome on X session.
I Have temporarily got rid of the problem by disabling updates-testing and running dnf distro-sync. I will re-enable updates-testing and update all the things that are unlikely to be a problem to try and then determine the problem package.
I have all the updates-testing packages re-installed and the problem hasn't come back. However I notice that one package update that was in updates-testing yesterday, seems to have disappeared, namely xorg-x11-drv-intel. My suspicion is that this was causing the problem.