Which desktop environment are you using? Could you get a picture of the issue? Thanks!
** Changed in: gnome-screensaver (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-screensaver in Ubuntu. https://bugs.launchpad.net/bugs/1768494 Title: Screen lock doesn't cover the whole screen Status in gnome-screensaver package in Ubuntu: Incomplete Bug description: I noticed a rather alarming bug today. Got a Lenovo T470P with dock and two 1440p screens. The laptop is 1440p but I chose 1080p as scaling didn't want to play along. To reproduce: 1. Have the laptop unlocked without the dock. 2. Lock and/or hibernate, close the lid. 3. Connect to the dock. 4. Power on the laptop trough dock. 5. The connected screens to the dock should light up with the login screen, however.. The secondary screen is only covered about 1/4, guessing the same scale as 1080p. I could open files, browse the web and cause damage trough this method. It also works if I lock my laptop on the dock, and someone undocks it and opens the lid, then does step 2-5 again. I saw a "confirmed" bug from 2014, but felt that this needed to be brought up, again. Running 18.04 LTS gnome-screensaver on 3.6.1-ubuntu3 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gnome-screensaver 3.6.1-8ubuntu3 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Wed May 2 12:39:19 2018 InstallationDate: Installed on 2018-03-19 (44 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1) SourcePackage: gnome-screensaver Symptom: security Title: Screen locking issue UpgradeStatus: Upgraded to bionic on 2018-05-02 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1768494/+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