Klaus

You have a very non-standard installation. Where are all the -dmoN versions of
packages from?

2023-03-01 17:53:07 upgrade imagemagick-7-common:all 8:7.1.0.62-dmo1 8:7.1.0.62-dmo4
2023-03-01 17:53:09 upgrade libass9:amd64 2:0.17.0-dmo5 2:0.17.1-dmo1
2023-03-01 17:53:13 upgrade libmagickwand-7-10:amd64 8:7.1.0.62-dmo1 8:7.1.0.62-dmo4
2023-03-01 17:53:13 upgrade libmagickcore-7-10:amd64 8:7.1.0.62-dmo1 8:7.1.0.62-dmo4
2023-03-02 22:55:19 upgrade audacious-plugins:amd64 1:4.2-dmo2 1:4.2-dmo3
2023-03-02 22:55:19 upgrade audacious-plugins-data:all 1:4.2-dmo2 1:4.2-dmo3
2023-03-02 22:55:20 upgrade libswresample4:amd64 10:5.1.2-dmo3 10:6.0-dmo2
2023-03-02 22:55:21 upgrade libchromaprint1:amd64 1:1.5.1-dmo4 1:1.5.1-dmo5
2023-03-02 22:55:21 upgrade audacity:amd64 1:3.2.4-dmo1 1:3.2.5-dmo1
2023-03-02 22:55:22 upgrade audacity-data:all 1:3.2.4-dmo1 1:3.2.5-dmo1
2023-03-02 22:55:25 upgrade ffmpeg:amd64 10:5.1.2-dmo3 10:6.0-dmo2
2023-03-02 22:55:29 upgrade k3b-extrathemes:all 1:22.12.2-dmo2 1:22.12.3-dmo1
2023-03-02 22:55:29 upgrade libasound2-plugins:amd64 1:1.2.7.1-dmo2 1:1.2.7.1-dmo3
2023-03-02 22:55:30 upgrade libffmpegthumbnailer-dev:amd64 1:2.2.2+git20220218-dmo1 1:2.2.2+git20220218-dmo2
2023-03-02 22:55:30 upgrade libffmpegthumbnailer4v5:amd64 1:2.2.2+git20220218-dmo1 1:2.2.2+git20220218-dmo2
2023-03-02 22:55:30 upgrade vapoursynth-ffms2:amd64 1:2.40+20211209.git90975ec-dmo3 1:2.40+20211209.git90975ec-dmo4
2023-03-02 22:55:31 upgrade libffms2-5:amd64 1:2.40+20211209.git90975ec-dmo3 1:2.40+20211209.git90975ec-dmo4
2023-03-02 22:55:31 upgrade libopenshot23:amd64 2:0.3.0-dmo4 2:0.3.0-dmo5
2023-03-02 22:55:32 upgrade libvlccore9:amd64 1:3.0.18-dmo5 1:3.0.18-dmo6
2023-03-02 22:55:32 upgrade vlc:amd64 1:3.0.18-dmo5 1:3.0.18-dmo6
2023-03-02 22:55:33 upgrade vlc-plugin-video-output:amd64 1:3.0.18-dmo5 1:3.0.18-dmo6
2023-03-02 22:55:33 upgrade vlc-plugin-base:amd64 1:3.0.18-dmo5 1:3.0.18-dmo6
2023-03-02 22:55:33 upgrade vlc-data:all 1:3.0.18-dmo5 1:3.0.18-dmo6
2023-03-02 22:55:34 upgrade vlc-plugin-qt:amd64 1:3.0.18-dmo5 1:3.0.18-dmo6
2023-03-02 22:55:34 upgrade vlc-l10n:all 1:3.0.18-dmo5 1:3.0.18-dmo6
2023-03-02 22:55:34 upgrade libvlc5:amd64 1:3.0.18-dmo5 1:3.0.18-dmo6
2023-03-02 22:55:35 upgrade vlc-bin:amd64 1:3.0.18-dmo5 1:3.0.18-dmo6
2023-03-02 22:55:35 upgrade libvlc-bin:amd64 1:3.0.18-dmo5 1:3.0.18-dmo6
2023-03-02 22:55:35 upgrade libxine2-ffmpeg:amd64 1:1.2.13-dmo1 1:1.2.13-dmo2
2023-03-02 22:55:35 upgrade libxine2-x:amd64 1:1.2.13-dmo1 1:1.2.13-dmo2
2023-03-02 22:55:35 upgrade libxine2-misc-plugins:amd64 1:1.2.13-dmo1 1:1.2.13-dmo2
2023-03-02 22:55:36 upgrade libxine2-bin:amd64 1:1.2.13-dmo1 1:1.2.13-dmo2
2023-03-02 22:55:37 upgrade python3-openshot:amd64 2:0.3.0-dmo4 2:0.3.0-dmo5
2023-03-02 22:55:37 upgrade mpv:amd64 1:0.35.1-dmo1 1:0.35.1-dmo3
2023-03-03 18:43:48 upgrade libmp4v2-2:amd64 2:2.0.0-dmo6 2:2.1.2-dmo1
2023-03-03 18:43:48 upgrade mencoder:amd64 4:1.5.0~20221010.svn38405-dmo1 4:1.5.0~20230303.svn38412-dmo1
2023-03-04 11:54:31 upgrade yt-dlp:all 1:2023.02.17-dmo1 1:2023.03.03-dmo2
2023-03-04 22:47:47 upgrade libgstreamer-plugins-base1.0-0:amd64 1.22.0-dmo1 1.22.1-dmo1
2023-03-04 22:47:47 upgrade libgstreamer-gl1.0-0:amd64 1.22.0-dmo1 1.22.1-dmo1
2023-03-04 22:47:48 upgrade gir1.2-gst-plugins-base-1.0:amd64 1.22.0-dmo1 1.22.1-dmo1
2023-03-04 22:47:48 upgrade gstreamer1.0-plugins-base:amd64 1.22.0-dmo1 1.22.1-dmo1
2023-03-04 22:47:48 upgrade gstreamer1.0-plugins-good:amd64 1.22.0-dmo2 1.22.1-dmo1
2023-03-04 22:47:48 upgrade gstreamer1.0-plugins-ugly:amd64 1:1.22.0-dmo1 1:1.22.1-dmo1
2023-03-04 22:47:49 upgrade gstreamer1.0-x:amd64 1.22.0-dmo1 1.22.1-dmo1
2023-03-05 13:21:12 upgrade yt-dlp:all 1:2023.03.03-dmo2 1:2023.03.04-dmo1
2023-03-06 18:18:30 upgrade audacious-plugins:amd64 1:4.2-dmo3 1:4.3-dmo1
2023-03-06 18:18:30 upgrade audacious-plugins-data:all 1:4.2-dmo3 1:4.3-dmo1
2023-03-06 18:18:31 upgrade audacious:amd64 1:4.2-dmo1 1:4.3-dmo1
2023-03-06 18:18:31 upgrade libaudcore5:amd64 1:4.2-dmo1 1:4.3-dmo1
2023-03-06 18:18:31 upgrade libaudgui5:amd64 1:4.2-dmo1 1:4.3-dmo1
2023-03-06 18:18:31 upgrade libaudqt2:amd64 1:4.2-dmo1 1:4.3-dmo1
2023-03-06 18:18:32 upgrade libaudtag3:amd64 1:4.2-dmo1 1:4.3-dmo1

None of those are standard Devuan or Debian packages

Can you reproduce this on a vanilla Devuan installation?

Also, I don't even see an xorg crash in the logs you sent -- it ends with
successful exit. However, bb|hcb suggested on irc:

<bb|hcb> I am just guessing - if the first X client exits - maybe the problem
is that there is no initial always on app started?

<bb|hcb> Something to try to rule what I said out is to add
e.g. "/usr/bin/xeyes -geometry 1x1+2000 &" to the session, so it gets started
and stays...

Mark