As of version 4.2.3-2 from https://deb.debian.org/debian testing/main amd64 Packages bug is still present. (bring` up external drive in second tab, eject: nemo window disappears) scott@ASUS-PRIME-B350M-A-CSM:~$ uname -a Linux ASUS-PRIME-B350M-A-CSM 4.19.0-2-amd64 #1 SMP Debian 4.19.16-1 (2019-01-17) x86_64 GNU/Linux scott@ASUS-PRIME-B350M-A-CSM:~$ lsb_release -dsc Debian GNU/Linux bullseye/sid bullseye scott@ASUS-PRIME-B350M-A-CSM:~$ echo $DESKTOP_SESSION /usr/share/xsessions/lxqt --------------------------------------------------------------------------------------- gdb run follows (no package nemo-dbgsym seems to exist for debian (at least)) --------------------------------------------------------------------------------------- scott@ASUS-PRIME-B350M-A-CSM:~$ gdb nemo GNU gdb (Debian 8.3.1-1) 8.3.1 Copyright (C) 2019 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from nemo... (No debugging symbols found in nemo) (gdb) run Starting program: /usr/bin/nemo [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7ffff2b2d700 (LWP 2008)] [New Thread 0x7ffff232c700 (LWP 2009)] [New Thread 0x7ffff1a51700 (LWP 2010)] [New Thread 0x7ffff1250700 (LWP 2011)] ** (nemo:2004): WARNING **: 20:42:13.320: Current gtk theme is not known to have nemo support (Adwaita) - checking... ** (nemo:2004): WARNING **: 20:42:13.392: The theme appears to have no nemo support. Adding some... [New Thread 0x7fffe3fff700 (LWP 2013)] [New Thread 0x7fffe37fe700 (LWP 2015)] [New Thread 0x7fffe2ffd700 (LWP 2016)] [New Thread 0x7fffe27fc700 (LWP 2017)] [New Thread 0x7fffe1ffb700 (LWP 2018)] [New Thread 0x7fffe17fa700 (LWP 2019)] [Thread 0x7fffe37fe700 (LWP 2015) exited] [Thread 0x7fffe1ffb700 (LWP 2018) exited] [Thread 0x7fffe27fc700 (LWP 2017) exited] [Thread 0x7fffe3fff700 (LWP 2013) exited] [Thread 0x7fffe2ffd700 (LWP 2016) exited] [Thread 0x7ffff1250700 (LWP 2011) exited] [New Thread 0x7ffff1250700 (LWP 2020)] [New Thread 0x7fffe2ffd700 (LWP 2021)] [Thread 0x7ffff1250700 (LWP 2020) exited] [Thread 0x7fffe17fa700 (LWP 2019) exited] (nemo:2004): Gtk-CRITICAL **: 20:42:29.116: gtk_container_foreach: assertion 'GTK_IS_CONTAINER (container)' failed (nemo:2004): Gtk-CRITICAL **: 20:42:29.117: gtk_container_foreach: assertion 'GTK_IS_CONTAINER (container)' failed (nemo:2004): Gtk-CRITICAL **: 20:42:29.117: gtk_container_foreach: assertion 'GTK_IS_CONTAINER (container)' failed (nemo:2004): Gtk-CRITICAL **: 20:42:29.118: gtk_container_foreach: assertion 'GTK_IS_CONTAINER (container)' failed (nemo:2004): Gtk-CRITICAL **: 20:42:29.118: gtk_container_foreach: assertion 'GTK_IS_CONTAINER (container)' failed (nemo:2004): Gtk-CRITICAL **: 20:42:29.118: gtk_container_foreach: assertion 'GTK_IS_CONTAINER (container)' failed (nemo:2004): Gtk-CRITICAL **: 20:42:29.118: gtk_container_foreach: assertion 'GTK_IS_CONTAINER (container)' failed [Thread 0x7fffe2ffd700 (LWP 2021) exited] [New Thread 0x7fffe2ffd700 (LWP 2045)] [Thread 0x7ffff1a51700 (LWP 2010) exited] [Thread 0x7ffff232c700 (LWP 2009) exited] [Thread 0x7ffff2b2d700 (LWP 2008) exited] [Thread 0x7ffff2e16280 (LWP 2004) exited] [Inferior 1 (process 2004) exited normally] (gdb) bt No stack. (gdb) q