Thanks. Your system log is full of error messages about 'extensions' that I have never seen before. Like:
févr. 20 11:55:15 hostname nautilus[2460]: Unexpected plugin response. This probably indicates a bug in a Nautilus extension: handle=0x55d6331da690 févr. 20 11:55:15 hostname nautilus[2460]: Unexpected plugin response. This probably indicates a bug in a Nautilus extension: handle=0x55d6334b7770 févr. 20 11:55:15 hostname nautilus[2460]: Unexpected plugin response. This probably indicates a bug in a Nautilus extension: handle=0x55d63425e160 and févr. 20 12:43:51 hostname gnome-shell[2029]: JS ERROR: ReferenceError: NM80211ApFlags is not defined WirelessList<._getApSecurityType@/home/username/.local/share/gnome-shell/extensions/extend-panel-menu@julio641742/indicators/network.js:448:1 wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22 WirelessList<._accessPointAdded@/home/username/.local/share/gnome-shell/extensions/extend-panel-menu@julio641742/indicators/network.js:567:27 Please try disabling/uninstalling all gnome-shell extensions other than the Ubuntu default ones (gnome-shell-extension-appindicator, gnome- shell-extension-ubuntu-dock), and tell us if the bug persists. If that fixes it then please try to figure out which extension was causing the bug, by reintroducing them one-by-one. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1750352 Title: gnome-shell freeze on key press while high CPU load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1750352/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs