GNOME Bugzilla – Bug 649769
Lock Screen should not show the user's wallpaper as background
Last modified: 2014-08-19 21:21:50 UTC
As of some recent version of gnome-shell, the "Lock Screen"(where the user is prompted to type password to unlock) shows the user's wallpaper as background. This behavior is not proper since the user may not want the wallpaper to be shown to other people as it may contain privacy. When the screen is locked, no information about the user except for maybe the username should be displayed. Please use the default wallpaper or a specified image for locking purpose as the background.
Hi, Thanks for taking the time to report this bug. I have made a quick test under Fedora 15 (with GNOME 3.0.1). The lock-screen doesn't show my wallpaper as background, but uses as you'd like it to be the Fedora 15 default wallpaper. Test case: - Go to the User Menu > System Settings > Background and choose a new background, - Go to the User Menu > Lock Screen - Move the mouse : the default Fedora 15 background is displayed, not the new one I've chosen. No bug seen. - Unlock: the newly chosen wallpaper is still here. Could you please provide a more precise description of how you procede to see this bug? Also, could you please specify the Linux distribution you've experienced this bug with?
Ok. I've done some further testing and I've reproduced the issue. Note that the bug can't be seen with the following test case, as said in my previous comment: - Go to the User Menu > System Settings > Background and choose a new background, - Go to the User Menu > Lock Screen There must be at least a logout/login (or a complete system restart) in between. The bug can therefore be reproduced the following way: - Go to the User Menu > System Settings > Background and choose a new background, - Go to the User Menu > Log Out... - Log in again in the same user account - Go to the User Menu > Lock Screen Strange behaviour. I think this is a bug with sufficient info to be accepted as NEW.
(In reply to comment #2) > I think this is a bug with sufficient info to be accepted as NEW. We don't really use that flag, e.g. UNCONFIRMED/NEW are treated exactly the same.
So, I was about to file a bug on the fact that the wallpaper changes are not reflected on the lock screen until you logout/relogin, but stumbled upon this bug report. My question is: shouldn't this be a setting in gnome-control-center's eventual "Privacy" panel? If yes, I should create a new bug report about the wallpaper not being refreshed...
There is somewhat relevant discussion going on in bug 659702
*** Bug 659702 has been marked as a duplicate of this bug. ***
This issue currently occurs under default settings on Debian Wheezy (with GNOME running in fallback mode, if that makes a difference), so could it be marked as "confirmed"? I can't think of any reason why anyone would want to have their background displayed when they lock the screen. GNOME 2 just displayed blackness behind the unlock dialog (AFAIK). Moreover, since clicking "Switch User" takes you to the login screen - where you're also able to unlock a logged in user - is there even any point having an unlock screen? It seems to me that the Lock Screen option should just be removed entirely in favor of Switch User.
(In reply to comment #7) > so could it be marked as "confirmed"? Please read comment 3 again...
> So, I was about to file a bug on the fact that the wallpaper changes are not reflected on the lock screen until you logout/relogin, but stumbled upon this bug report. Yep, I was just about to report the same issue. Now, seeing this bug report, I think it's sensible to not display the wallpaper at all as suggested by the original reporter. Also, the wallpaper is actually only shown for one screen, even if an extended wallpaper is used. Looks quite inconsistent IMHO. The secondary screen actually shows a black screen plus the activities/status panel at the top. Might be sensible to hide the panel as well, it's shown on both screens even though the panel is normally only visible on the primary screen. Another minor issue is that the password prompt for the lockscreen always pops up on the screen where the mouse cursor was when the screen was locked, so it's jumping between the two screens. So, the multi-monitor lockscreen behavior has some room for improvement ;). > This issue currently occurs under default settings on Debian Wheezy (with GNOME running in fallback mode, if that makes a difference) Currently using GNOME3 on Debian Wheezy with compositing and 3D acceleration enabled and the lockscreen behavior is identical. So it's not an issue with the fall-back mode. Adrian
gnome-screensaver is obsolete, and this particular bug has been fixed in gnome-shell itself, with the lock screen wallpaper being a different one from the user's own wallpaper.