If I rerun the command I just have messages: corrado@corrado-n4-gg-0905:~$ totem /Videos/DSCF0010.AVI (totem:9671): GLib-CRITICAL **: 07:49:16.638: g_propagate_error: assertion 'src != NULL' failed (totem:9671): GLib-GIO-CRITICAL **: 07:49:16.638: g_task_return_error: assertion 'error != NULL' failed (totem:9671): GLib-GIO-CRITICAL **: 07:49:16.640: g_task_propagate_boolean: assertion 'task->result_set' failed Segmentation fault (core dumped) corrado@corrado-n4-gg-0905:~$ but not the error window as in attachment. if I click on the crash file I see it as text. I tried to create a retrace but was unable to do: corrado@corrado-n4-gg-0905:~$ cd /var/crash corrado@corrado-n4-gg-0905:/var/crash$ ls _usr_bin_totem.1000.crash _usr_bin_totem.1000.uploaded _usr_bin_totem.1000.upload _usr_libexec_tracker-extract.1000.crash corrado@corrado-n4-gg-0905:/var/crash$ apport-retrace --stdout _usr_bin_totem.1000.crash Command 'apport-retrace' not found, but can be installed with: sudo apt install apport-retrace corrado@corrado-n4-gg-0905:/var/crash$ sudo apt install apport-retrace [sudo] password for corrado: Reading package lists... Done Building dependency tree Reading state information... Done The following package was automatically installed and is no longer required: gvfs-bin Use 'sudo apt autoremove' to remove it. The following additional packages will be installed: binutils binutils-common binutils-x86-64-linux-gnu build-essential dpkg-dev fakeroot g++ g++-10 gcc gcc-10 libalgorithm-diff-perl libalgorithm-diff-xs-perl libalgorithm-merge-perl libasan6 libatomic1 libbinutils libc-dev-bin libc6-dev libcrypt-dev libctf-nobfd0 libctf0 libfakeroot libgcc-10-dev libitm1 liblsan0 libstdc++-10-dev libtsan0 libubsan1 linux-libc-dev make manpages-dev Suggested packages: gdb-multiarch binutils-doc debian-keyring g++-multilib g++-10-multilib gcc-10-doc gcc-multilib autoconf automake libtool flex bison gcc-doc gcc-10-multilib gcc-10-locales glibc-doc libstdc++-10-doc make-doc The following NEW packages will be installed: apport-retrace binutils binutils-common binutils-x86-64-linux-gnu build-essential dpkg-dev fakeroot g++ g++-10 gcc gcc-10 libalgorithm-diff-perl libalgorithm-diff-xs-perl libalgorithm-merge-perl libasan6 libatomic1 libbinutils libc-dev-bin libc6-dev libcrypt-dev libctf-nobfd0 libctf0 libfakeroot libgcc-10-dev libitm1 liblsan0 libstdc++-10-dev libtsan0 libubsan1 linux-libc-dev make manpages-dev 0 upgraded, 32 newly installed, 0 to remove and 24 not upgraded. Need to get 40,1 MB of archives. After this operation, 175 MB of additional disk space will be used. Do you want to continue? [Y/n] Get:1 http://archive.ubuntu.com/ubuntu groovy/main amd64 binutils-common amd64 2.35-3ubuntu1 [212 kB] Get:2 http://archive.ubuntu.com/ubuntu groovy/main amd64 libbinutils amd64 2.35-3ubuntu1 [481 kB] Get:3 http://archive.ubuntu.com/ubuntu groovy/main amd64 libctf-nobfd0 amd64 2.35-3ubuntu1 [48,0 kB] Get:4 http://archive.ubuntu.com/ubuntu groovy/main amd64 libctf0 amd64 2.35-3ubuntu1 [47,4 kB] Get:5 http://archive.ubuntu.com/ubuntu groovy/main amd64 binutils-x86-64-linux-gnu amd64 2.35-3ubuntu1 [1.644 kB] Get:6 http://archive.ubuntu.com/ubuntu groovy/main amd64 binutils amd64 2.35-3ubuntu1 [3.376 B] Get:7 http://archive.ubuntu.com/ubuntu groovy/main amd64 make amd64 4.3-4ubuntu1 [167 kB] Get:8 http://archive.ubuntu.com/ubuntu groovy/main amd64 dpkg-dev all 1.20.5ubuntu2 [758 kB] Get:9 http://archive.ubuntu.com/ubuntu groovy/main amd64 apport-retrace all 2.20.11-0ubuntu45 [13,1 kB] Get:10 http://archive.ubuntu.com/ubuntu groovy/main amd64 libc-dev-bin amd64 2.31-0ubuntu11 [71,6 kB] Get:11 http://archive.ubuntu.com/ubuntu groovy/main amd64 linux-libc-dev amd64 5.8.0-18.19 [1.139 kB] Get:12 http://archive.ubuntu.com/ubuntu groovy/main amd64 libcrypt-dev amd64 1:4.4.16-1ubuntu1 [104 kB] Get:13 http://archive.ubuntu.com/ubuntu groovy/main amd64 libc6-dev amd64 2.31-0ubuntu11 [2.518 kB] Get:14 http://archive.ubuntu.com/ubuntu groovy/main amd64 libitm1 amd64 10.2.0-6ubuntu1 [26,3 kB] Get:15 http://archive.ubuntu.com/ubuntu groovy/main amd64 libatomic1 amd64 10.2.0-6ubuntu1 [9.300 B] Get:16 http://archive.ubuntu.com/ubuntu groovy/main amd64 libasan6 amd64 10.2.0-6ubuntu1 [344 kB] Get:17 http://archive.ubuntu.com/ubuntu groovy/main amd64 liblsan0 amd64 10.2.0-6ubuntu1 [144 kB] Get:18 http://archive.ubuntu.com/ubuntu groovy/main amd64 libtsan0 amd64 10.2.0-6ubuntu1 [320 kB] Get:19 http://archive.ubuntu.com/ubuntu groovy/main amd64 libubsan1 amd64 10.2.0-6ubuntu1 [136 kB] Get:20 http://archive.ubuntu.com/ubuntu groovy/main amd64 libgcc-10-dev amd64 10.2.0-6ubuntu1 [2.342 kB] Get:21 http://archive.ubuntu.com/ubuntu groovy/main amd64 gcc-10 amd64 10.2.0-6ubuntu1 [16,3 MB] Get:22 http://archive.ubuntu.com/ubuntu groovy/main amd64 gcc amd64 4:10.1.0-1ubuntu1 [5.220 B] Get:23 http://archive.ubuntu.com/ubuntu groovy/main amd64 libstdc++-10-dev amd64 10.2.0-6ubuntu1 [1.749 kB] Get:24 http://archive.ubuntu.com/ubuntu groovy/main amd64 g++-10 amd64 10.2.0-6ubuntu1 [9.056 kB] Get:25 http://archive.ubuntu.com/ubuntu groovy/main amd64 g++ amd64 4:10.1.0-1ubuntu1 [1.608 B] Get:26 http://archive.ubuntu.com/ubuntu groovy/main amd64 build-essential amd64 12.8ubuntu3 [4.640 B] Get:27 http://archive.ubuntu.com/ubuntu groovy/main amd64 libfakeroot amd64 1.24-1 [25,7 kB] Get:28 http://archive.ubuntu.com/ubuntu groovy/main amd64 fakeroot amd64 1.24-1 [62,6 kB] Get:29 http://archive.ubuntu.com/ubuntu groovy/main amd64 libalgorithm-diff-perl all 1.19.03-2 [46,6 kB] Get:30 http://archive.ubuntu.com/ubuntu groovy/main amd64 libalgorithm-diff-xs-perl amd64 0.04-6 [11,3 kB] Get:31 http://archive.ubuntu.com/ubuntu groovy/main amd64 libalgorithm-merge-perl all 0.08-3 [12,0 kB] Get:32 http://archive.ubuntu.com/ubuntu groovy/main amd64 manpages-dev all 5.08-1 [2.290 kB] Fetched 40,1 MB in 15s (2.649 kB/s) Extracting templates from packages: 100% Selecting previously unselected package binutils-common:amd64. (Reading database ... 170632 files and directories currently installed.) Preparing to unpack .../00-binutils-common_2.35-3ubuntu1_amd64.deb ... Unpacking binutils-common:amd64 (2.35-3ubuntu1) ... Selecting previously unselected package libbinutils:amd64. Preparing to unpack .../01-libbinutils_2.35-3ubuntu1_amd64.deb ... Unpacking libbinutils:amd64 (2.35-3ubuntu1) ... Selecting previously unselected package libctf-nobfd0:amd64. Preparing to unpack .../02-libctf-nobfd0_2.35-3ubuntu1_amd64.deb ... Unpacking libctf-nobfd0:amd64 (2.35-3ubuntu1) ... Selecting previously unselected package libctf0:amd64. Preparing to unpack .../03-libctf0_2.35-3ubuntu1_amd64.deb ... Unpacking libctf0:amd64 (2.35-3ubuntu1) ... Selecting previously unselected package binutils-x86-64-linux-gnu. Preparing to unpack .../04-binutils-x86-64-linux-gnu_2.35-3ubuntu1_amd64.deb ... Unpacking binutils-x86-64-linux-gnu (2.35-3ubuntu1) ... Selecting previously unselected package binutils. 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Setting up fakeroot (1.24-1) ... update-alternatives: using /usr/bin/fakeroot-sysv to provide /usr/bin/fakeroot (fakeroot) in auto mode Setting up make (4.3-4ubuntu1) ... Setting up libatomic1:amd64 (10.2.0-6ubuntu1) ... Setting up libubsan1:amd64 (10.2.0-6ubuntu1) ... Setting up libcrypt-dev:amd64 (1:4.4.16-1ubuntu1) ... Setting up libbinutils:amd64 (2.35-3ubuntu1) ... Setting up libc-dev-bin (2.31-0ubuntu11) ... Setting up libalgorithm-diff-xs-perl (0.04-6) ... Setting up liblsan0:amd64 (10.2.0-6ubuntu1) ... Setting up libitm1:amd64 (10.2.0-6ubuntu1) ... Setting up libalgorithm-merge-perl (0.08-3) ... Setting up libtsan0:amd64 (10.2.0-6ubuntu1) ... Setting up libctf0:amd64 (2.35-3ubuntu1) ... Setting up libgcc-10-dev:amd64 (10.2.0-6ubuntu1) ... Setting up libc6-dev:amd64 (2.31-0ubuntu11) ... Setting up binutils-x86-64-linux-gnu (2.35-3ubuntu1) ... Setting up libstdc++-10-dev:amd64 (10.2.0-6ubuntu1) ... Setting up binutils (2.35-3ubuntu1) ... Setting up dpkg-dev (1.20.5ubuntu2) ... Setting up gcc-10 (10.2.0-6ubuntu1) ... Setting up g++-10 (10.2.0-6ubuntu1) ... Setting up apport-retrace (2.20.11-0ubuntu45) ... Setting up gcc (4:10.1.0-1ubuntu1) ... Setting up g++ (4:10.1.0-1ubuntu1) ... update-alternatives: using /usr/bin/g++ to provide /usr/bin/c++ (c++) in auto mode Setting up build-essential (12.8ubuntu3) ... Processing triggers for man-db (2.9.3-2) ... Processing triggers for libc-bin (2.31-0ubuntu11) ... corrado@corrado-n4-gg-0905:/var/crash$ apport-retrace --stdout _usr_bin_totem.1000.crash ERROR: report file does not contain one of the required fields: Package corrado@corrado-n4-gg-0905:/var/crash$