Locking screen does not work in case of fullscreen gnome-terminal

Bug #1292209 reported by LGB [Gábor Lénárt] on 2014-03-13
This bug affects 1 person
Affects Status Importance Assigned to Milestone
gnome-screensaver (Ubuntu)

Bug Description

Somewhat odd situation. If I use CTRL-ALT-L to lock my session, it normally works as expected. However if there is a fullscreen gnome-terminal (F11) was on the screen, CTRL-ALT-L does something interesting: it begins fade the screen but it's left in a middle state, no way to unlock but also it's not locked visually though I can't type anymore.

More interestingly: it seems the screen IS locked, since if I type my password "blindly" (I still see the half faded session ...) I get back my desktop in a usable state! Interesting.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gnome-screensaver 3.6.1-0ubuntu11
ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
Uname: Linux 3.13.0-17-generic i686
ApportVersion: 2.13.3-0ubuntu1
Architecture: i386
CurrentDesktop: Unity
Date: Thu Mar 13 21:25:10 2014
GnomeSessionIdleInhibited: No
GnomeSessionInhibitors: None
 org.gnome.desktop.session session-name 'gnome'
 org.gnome.desktop.session idle-delay uint32 3600
InstallationDate: Installed on 2012-03-03 (740 days ago)
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
SourcePackage: gnome-screensaver
UpgradeStatus: Upgraded to trusty on 2013-10-18 (146 days ago)

LGB [Gábor Lénárt] (lgb) wrote :
LGB [Gábor Lénárt] (lgb) wrote :

Btw, the other even more odd workaround: switch to text console, kill gnome-terminal and switch back to the VT used by X, and you can unlock then.

LGB [Gábor Lénárt] (lgb) wrote :

It happened again now (up-to-date 14.04 LTS now): screen started to fade out after pressing CTRL-ALT-L, then it stuck in the middle of process, I can move the mouse, but I can't do anything neither with mouse or keyboard. What helped: switching to text console (CTRL-ALT-F1) login, then killing gnome-terminal. After that, I can switch back to X.org (ALT-F7) and I see the unlock screen now. However of course this is not an ideal solution, and I lost all of my (tons of ...) gnome-terminal windows. Again: it seems it happens sometimes, if I press CTRL-ALT-L when I have a fullscreen (not maximized, but full screen) gnome-terminal on the current workspace.

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