ok c'est nettoyé et voici la réponse à la commande:
tih@tih-nuage-magique:~$ ls -l /var/crash
total 12276
-rw-r----- 1 root whoopsie 1775053 oct. 4 18:50 chromium-browser.0.crash
-rw-r--r-- 1 root whoopsie 0 oct. 4 18:51 chromium-browser.0.upload
-rw------- 1 whoopsie whoopsie 37 oct. 5 22:25 chromium-browser.0.uploaded
-rw-r----- 1 tih whoopsie 6592052 oct. 4 18:54 _usr_bin_gnome-control-center.1000.crash
-rw-r----- 1 tih whoopsie 14326 oct. 4 16:47 _usr_bin_pulseaudio.1000.crash
-rw-r----- 1 tih whoopsie 103126 oct. 4 19:17 _usr_bin_software-properties-gtk.1000.crash
-rw-r----- 1 tih whoopsie 443361 oct. 5 14:00 _usr_bin_update-manager.1000.crash
-rw-rw-r-- 1 tih whoopsie 0 oct. 5 14:00 _usr_bin_update-manager.1000.upload
-rw------- 1 whoopsie whoopsie 37 oct. 5 22:25 _usr_bin_update-manager.1000.uploaded
-rw-r----- 1 tih whoopsie 812244 oct. 4 16:46 _usr_libexec_gsd-keyboard.1000.crash
-rw-r----- 1 tih whoopsie 1105682 oct. 4 18:50 _usr_libexec_gsd-media-keys.1000.crash
-rw-rw-r-- 1 tih whoopsie 0 oct. 4 18:50 _usr_libexec_gsd-media-keys.1000.upload
-rw------- 1 whoopsie whoopsie 37 oct. 5 22:25 _usr_libexec_gsd-media-keys.1000.uploaded
-rw-r----- 1 tih whoopsie 543167 oct. 4 18:56 _usr_libexec_gsd-usb-protection.1000.crash
-rw-rw-r-- 1 tih whoopsie 0 oct. 4 18:56 _usr_libexec_gsd-usb-protection.1000.upload
-rw------- 1 whoopsie whoopsie 37 oct. 5 22:25 _usr_libexec_gsd-usb-protection.1000.uploaded
-rw-r----- 1 tih whoopsie 318123 oct. 4 16:47 _usr_libexec_gsd-wwan.1000.crash
-rw-r----- 1 tih whoopsie 826635 oct. 4 16:46 _usr_libexec_gsd-xsettings.1000.crash