Thanks for hint. Indeed clamav + few its graphical packages are installed yet in use. clamtk-gnome package was removed then Ubuntu restarted.
Subsequently all these below apply: Problem still reproducible. user45@node13a:~$ sudo ls -alh /usr/share/nautilus-python/extensions/ [sudo] password for biri: total 8.0K drwxr-xr-x 2 root root 4.0K Jan 29 23:54 . drwxr-xr-x 3 root root 4.0K Aug 2 01:40 .. user45@node13a:~$ Jan 29 23:57:27 nautilus: Called "net usershare info" but it failed: 'net usershare' returned error 255: net usershare: cannot open usershare directory /var/lib/samba/usershares. Error No such file or directory Please ask your system administrator to enable user sharing. Jan 29 23:57:27 dbus-daemon: [session uid=1000 pid=1808] Successfully activated service 'org.gnome.Nautilus' Jan 29 23:57:27 dbus-daemon: [session uid=1000 pid=1808] Successfully activated service 'org.gnome.Nautilus' Jan 29 23:57:27 dbus-daemon: [session uid=1000 pid=1808] Activating service name='org.gnome.Nautilus' requested by ':1.29' (uid=1000 pid=1942 comm="/usr/bin/gnome-shell " label="unconfined") Jan 29 23:57:24 nautilus: Error reading events from display: Invalid argument Jan 29 23:57:24 nautilus: Error reading events from display: Invalid argument Jan 29 23:57:22 nautilus: ../../../../../gdk/x11/gdkwindow-x11.c:5633 drawable is not a native X11 window Jan 29 23:57:22 nautilus: ../../../../../gdk/x11/gdkwindow-x11.c:5633 drawable is not a native X11 window Jan 29 23:57:22 nautilus: gdk_window_get_window_type: assertion 'GDK_IS_WINDOW (window)' failed Jan 29 23:57:19 nautilus: ../../../../../gdk/x11/gdkwindow-x11.c:5633 drawable is not a native X11 window Jan 29 23:57:19 nautilus: ../../../../../gdk/x11/gdkwindow-x11.c:5633 drawable is not a native X11 window Jan 29 23:57:19 nautilus: ../../../../../gdk/x11/gdkwindow-x11.c:5633 drawable is not a native X11 window Jan 29 23:57:18 nautilus: ../../../../../gdk/x11/gdkwindow-x11.c:5633 drawable is not a native X11 window Jan 29 23:57:08 nautilus: Called "net usershare info" but it failed: 'net usershare' returned error 255: net usershare: cannot open usershare directory /var/lib/samba/usershares. Error No such file or directory Please ask your system administrator to enable user sharing. Jan 29 23:57:08 dbus-daemon: [session uid=1000 pid=1808] Activating via systemd: service name='org.gtk.vfs.Metadata' unit='gvfs-metadata.service' requested by ':1.41' (uid=1000 pid=2028 comm="/usr/bin/nautilus --gapplication-service " label="unconfined") Jan 29 23:57:08 nautilus: ../../../../../gdk/x11/gdkwindow-x11.c:5633 drawable is not a native X11 window Jan 29 23:57:08 nautilus: ../../../../../gdk/x11/gdkwindow-x11.c:5633 drawable is not a native X11 window Jan 29 23:57:05 nautilus: Failed to load module "unity-gtk-module" Jan 29 23:57:01 gnome-session-b: WARNING: Could not parse desktop file nautilus-autostart.desktop or it references a not found TryExec binary Jan 29 23:57:01 gnome-session-b: WARNING: Could not parse desktop file nautilus-autostart.desktop or it references a not found TryExec binary Jan 29 23:57:01 gnome-session-b: gnome-session-binary[1926]: WARNING: Could not parse desktop file nautilus-autostart.desktop or it references a not found TryExec binary -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/1913644 Title: Closing by itself upon moving file to bookmarked folder Status in nautilus package in Ubuntu: Incomplete Bug description: Problem encountered not before Ubuntu update 18.04.latest to 20.04.2. Prerequisites: Few folders are bookmarked to side bar. Move a file from folder in Nautilus window to one of bookmarked folders, do it by drag and drop. When dragging over bookmark of move destination directory hit Alt-key to get context menu. Mouse cursor gets small question mark pictogram. Select "Move Here" from menu. Problem: Open Nautilus window closes immediately. If to reopen and check destination directory the move operation completed as desired. Others: Plain drag and drop without using context menu : window doesn't close - as expected. Userspace log: 21:51:06 nautilus: Error reading events from display: Invalid argument 21:51:04 nautilus: gdk_window_get_window_type: assertion 'GDK_IS_WINDOW (window)' failed 21:51:01 nautilus: TypeError: %b requires a bytes-like object, or an object that implements __bytes__, not 'str' 21:51:01 nautilus: tip=_('Scan %s for threats...') % file.get_name(), 21:51:01 nautilus: File "/usr/share/nautilus-python/extensions/clamtk-gnome.py", line 64, in get_file_items 21:51:01 nautilus: Traceback (most recent call last): 21:51:01 nautilus: TypeError: %b requires a bytes-like object, or an object that implements __bytes__, not 'str' 21:51:01 nautilus: tip=_('Scan %s for threats...') % file.get_name(), 21:51:01 nautilus: File "/usr/share/nautilus-python/extensions/clamtk-gnome.py", line 64, in get_file_items 21:51:01 nautilus: Traceback (most recent call last): 21:50:47 nautilus: Called "net usershare info" but it failed: 'net usershare' returned error 255: net usershare: cannot open usershare directory /var/lib/samba/usershares. Error No such file or directory Please ask your system administrator to enable user sharing. 21:50:46 dbus-daemon: [system] Activating via systemd: service name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service' requested by ':1.143' (uid=1000 pid=14160 comm="/usr/bin/nautilus --gapplication-service " label="unconfined") 21:50:46 dbus-daemon: [session uid=1000 pid=2151] Successfully activated service 'org.gnome.Nautilus' 21:50:46 dbus-daemon: [session uid=1000 pid=2151] Activating service name='org.gnome.Nautilus' requested by ':1.22' (uid=1000 pid=2285 comm="/usr/bin/gnome-shell " label="unconfined") user45@node13a:~$ sudo ls /var/lib/samba/ private user45@node13a:~$ sudo apt-cache policy nautilus nautilus: Installed: 1:3.36.3-0ubuntu1 Candidate: 1:3.36.3-0ubuntu1 Version table: *** 1:3.36.3-0ubuntu1 500 500 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages 100 /var/lib/dpkg/status 1:3.36.1.1-1ubuntu2 500 500 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1913644/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

