[Pkg-acpi-devel] Bug#534406: If xscreensaver has crashed, does not lock screen on suspend

[Enrico Zini]

Package: acpi-support
Version: 0.123-1
Severity: normal

Hello,

in order to detect what method to use to lock the screen,
/etc/acpi/sleep.sh and /usr/share/acpi-support/screenblank look for an
existing xscreensaver.

However, if xscreensaver has crashed for some reason, then the screen
does not get locked, which I see as rather problematic security issue.

In my case, if xscreensaver is not running, I would rather the suspend
not to happen, so that I know what is going on rather than falsely
assume that it is now safe to leave the laptop unattended.

Or even more ideally, the scripts could start xscreensaver for me if it
is not running.

Well, even more ideally it should not be a problem of acpi scripts but
X should have a way to say "make sure that the screen is locked in
whatever way the user prefers, but lock it", or the X lock machinery of
the ACPi script should be extracted and bundled in an x-lock-screen
script that could also be used by others, but this is digressing.

I understand that ensuring the screen is locked would mean requiring me
to explicitly specify what X lock method should be used in my machine,
but that would be exactly what I would like to be able to do.


Cheers,

Enrico

-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.29-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages acpi-support depends on:
ii  acpi-support-base             0.123-1    scripts for handling base ACPI eve
ii  acpid                         1.0.10-2   Utilities for using ACPI power man
ii  dmidecode                     2.9-1      Dump Desktop Management Interface 
ii  finger                        0.17-13    user information lookup program
ii  hdparm                        8.9-3      tune hard disk parameters for high
ii  laptop-detect                 0.13.7     attempt to detect a laptop
ii  libc6                         2.9-12     GNU C Library: Shared libraries
ii  lsb-base                      3.2-22     Linux Standard Base 3.2 init scrip
ii  pm-utils                      1.2.5-2    utilities and scripts for power ma
ii  powermgmt-base                1.30+nmu1  Common utils and configs for power
ii  x11-xserver-utils             7.4+2      X server utilities

Versions of packages acpi-support recommends:
ii  dbus         1.2.12-1                    simple interprocess messaging syst
ii  hal          0.5.12~git20090406.46dc48-2 Hardware Abstraction Layer
pn  nvclock      <none>                      (no description available)
ii  radeontool   1.5-5                       utility to control ATI Radeon back

Versions of packages acpi-support suggests:
pn  laptop-mode-tools             <none>     (no description available)

-- no debconf information