*** This bug is a security vulnerability ***
Public security bug reported:
I have set my "Brightness and Lock" settings such that it will lock the
screen after "Screen turns off". Then in my "power" settings, I have the
"lid closed" action to "Do Nothing", which turns the screen off when the
lid is closed.
In previous versions of Ubuntu (such as 11.04, not sure about 11.10),
there was an option to "Blank screen" instead of "Do Nothing", but
despite the wording change, they appear to do the same thing (turn the
screen off), but with one crucial difference - 12.04 doesn't lock the
screen when the lid is closed. It seems to wait for that 30 minute time
out I specified in "Brightness and Lock", despite the wording in the
"Lock" section claiming that it will lock when the screen turns off.
As I've ticked a box to lock my encrypted-home laptop when the screen
turns off, and as the screen turns off when I close the lid, I expect
the lock to engage. Since it doesn't, I believe this is a security
risk.
1) Release : 12.04, clean insall
2) gnome-control-center : 1:3.3.91-0ubuntu4
3) As the screen turns off when the lid is closed, I expect the lock to engage
so that I'm prompted for my password when opening the lid again.
4) No lock engages and when I open the lid, instead I'm returned to my unlocked
desktop.
I've confirmed this bug on two laptops - a Toshiba Portege (R700-185)
and a Samsung Chronos 7 (NP700Z5A-S01UK). If it's at all relevant, both
laptops were built with encrypted home directories.
** Affects: gnome-control-center (Ubuntu)
Importance: Undecided
Status: New
** Visibility changed to: Public
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https://bugs.launchpad.net/bugs/959184
Title:
Option to "Lock screen afer screen turns off" is ignored
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