Public bug reported:
Bad design of logout in Ubuntu (gnome, kde, etc) leads to at least 2 use
cases with possible data corruption from having to hardly shutdown the
computer (i.e. power off).
Use case 1 - confirmation on power button
Power goes out, PC is on UPS, monitor is not (common), lights go out.
You press the power key to turn it off.
It does NOT turn off. It displays a nice logout confirmation box, especially if
you had another session opened (VT1, or say VT8 another X session etc).
You can either hope to login as root, go to console, and type shutdown -h now
in darkness, or data corruption in 3 minutes when UPS dies.
Solution:
In KDE:
- when user presses power button 2nd time in 30 seconds (or, when confirmation
box is already visible) then just force logout
- when logout (closing all applications etc) takes more then 10 seconds (i.e.
some applications showed a box to confirm closing it etc), or when button is
pressed again, just kill it
In Ubuntu (scripts?)
- when power button is pressed 4 times in 30 seconds then shutdown -h now -t 10
- when power button is pressed 5 times in 30 seconds then just kill -9 most
applications, and sync
Use case 2:
Thunderstorm closes in but you left PC running.
Family member / coworker / etc wants to turn it off, but ooops - need a
password to unlock X...
you wait for thunderstorm or hard-power-off again.
Solutions:
GNOME:
as there is Leave-A-Note (in GNOME password), add also an Turn Off button.
Leave config option to disable it.
KDE: as in GNOME
also, the power-button-click described above (several times) would as
well solve this case,
** Affects: ubuntu
Importance: Undecided
Status: New
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logout box + no way to kill computer = data corruption
https://bugs.launchpad.net/bugs/285141
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