Some investigation and notes (and apologies for the noise; I need somewhere to take notes):
I have the following extensions in /usr/share/gnome-shell/extensions: alternate-...@gnome-shell-extensions.gcampax.github.com/ apps-m...@gnome-shell-extensions.gcampax.github.com/ auto-move-wind...@gnome-shell-extensions.gcampax.github.com/ dash-to-d...@micxgx.gmail.com/ dash-to-pa...@jderose9.github.com/ drive-m...@gnome-shell-extensions.gcampax.github.com/ hidetop...@mathieu.bidon.ca/ launch-new-insta...@gnome-shell-extensions.gcampax.github.com/ mediapla...@patapon.info/ move_cl...@jonathan.bluemosh.com/ multi-monitors-add-on@spin83/ native-window-placem...@gnome-shell-extensions.gcampax.github.com/ pixel-sa...@deadalnix.me/ places-m...@gnome-shell-extensions.gcampax.github.com/ screenshot-window-si...@gnome-shell-extensions.gcampax.github.com/ TaskBar@zpydr/ ubuntu-appindicat...@ubuntu.com/ ubuntu-d...@ubuntu.com/ user-th...@gnome-shell-extensions.gcampax.github.com/ window-l...@gnome-shell-extensions.gcampax.github.com/ windowsnaviga...@gnome-shell-extensions.gcampax.github.com/ workspace-indica...@gnome-shell-extensions.gcampax.github.com/ I have the following extensions installed via apt (reason, where known): gnome-shell-extension-appindicator (ubuntu-desktop) gnome-shell-extension-autohidetopbar (explicit) gnome-shell-extension-dashtodock (explicit) gnome-shell-extension-dash-to-panel (explicit) gnome-shell-extension-mediaplayer (explicit) gnome-shell-extension-move-clock (explicit) gnome-shell-extension-multi-monitors (explicit) gnome-shell-extension-pixelsaver (explicit) gnome-shell-extensions (explicit) gnome-shell-extension-taskbar (explicit) gnome-shell-extension-ubuntu-dock (ubuntu-desktop) ubuntu-session (ubuntu-desktop) I'm trying to figure out which directory maps to which .deb package, and then I'll remove the extensions that I'm not using. If that solves the problem: job done. I also have the following extensions installed in ~/.local/share/gnome- shell/extensions: alternate-...@gnome-shell-extensions.gcampax.github.com/ dash-to-pa...@jderose9.github.com/ multi-monitors-add-on@spin83/ audio-output-switcher@anduchs/ hidetop...@mathieu.bidon.ca/ I'm not sure what it means that I have an extension listed in both locations. I've removed the dashtodock and pixelsaver extensions; I wasn't using them. I'll remove some more unused extensions if that doesn't solve the problem. Concurrently, I'll leave my other PC nearly stock and I'll lock/unlock it a bunch of times over the next week or so and see if it gets slower. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1869568 Title: Unlock takes a long time Status in gnome-shell package in Ubuntu: Incomplete Bug description: I searched and found related bugs #1774188 and #1847566, but one of those is against 19.04, which is end-of-support, and the other was abandoned with no feedback from the OP. So, let's try again. When unlocking my screen, it takes progressively longer to unlock. After a fresh restart, it's pretty quick. After about a day, it takes about a second. After a longer period, it takes up to 5 seconds. When I press Enter at the lock screen to get to the password entry, the "wipe" effect commonly stalls as it gets near the top of the screen; not sure if this is related. After correctly entering my password, it takes several seconds before my desktop is visible. It's _there_, because moving the mouse around changes the mouse pointer according to what's under it (e.g. it turns into an I-bar on the Firefox search/address box and a finger icon on a link). It just takes several seconds to actually draw the screen. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gnome-shell 3.28.4-0ubuntu18.04.3 ProcVersionSignature: Ubuntu 5.3.0-42.34~18.04.1-generic 5.3.18 Uname: Linux 5.3.0-42-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu7.12 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sun Mar 29 11:10:07 2020 DisplayManager: gdm3 EcryptfsInUse: Yes InstallationDate: Installed on 2020-01-10 (78 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1869568/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp