Re: ralentissement depuis 4 jours ?

J'ai fait un apt auto-remove, et pour df -h voici la sortie:

(base) :~$ df -h
Sys. de fichiers Taille Utilisé Dispo Uti% Monté sur
udev 7,8G 0 7,8G 0% /dev
tmpfs 1,6G 2,1M 1,6G 1% /run
/dev/sda2 453G 364G 66G 85% /
tmpfs 7,8G 198M 7,6G 3% /dev/shm
tmpfs 5,0M 4,0K 5,0M 1% /run/lock
tmpfs 7,8G 0 7,8G 0% /sys/fs/cgroup
/dev/loop0 163M 163M 0 100% /snap/chromium/1350
/dev/loop2 141M 141M 0 100% /snap/gnome-3-26-1604/100
/dev/loop4 63M 63M 0 100% /snap/gtk-common-themes/1506
/dev/loop1 105M 105M 0 100% /snap/brackets/138
/dev/loop3 2,3M 2,3M 0 100% /snap/gnome-system-monitor/148
/dev/loop5 56M 56M 0 100% /snap/core18/1885
/dev/loop7 163M 163M 0 100% /snap/gnome-3-28-1804/145
/dev/loop6 98M 98M 0 100% /snap/core/10126
/dev/loop8 261M 261M 0 100% /snap/kde-frameworks-5-core18/32
/dev/loop9 291M 291M 0 100% /snap/kde-frameworks-5-qt-5-14-core18/4
/dev/loop10 16M 16M 0 100% /snap/kolourpaint/56
/dev/loop11 51M 51M 0 100% /snap/snap-store/481
/dev/loop12 356M 356M 0 100% /snap/pycharm-community/214
/dev/loop13 457M 457M 0 100% /snap/wine-platform/128
/dev/loop14 218M 218M 0 100% /snap/gnome-3-34-1804/60
/dev/sda1 511M 7,8M 504M 2% /boot/efi
tmpfs 1,6G 64K 1,6G 1% /run/user/1000

Et non le ventilo ne tourne pas fort...