Well, I guess it is a little more complicated than that, but I was
helping troubleshoot KMS dpms hangs from intel bug reports with some
people on IRC and felt it should probably be brought up here because
removing it did in fact fix their problem. I noticed debian carries a
patch in acpi-support that would probably be much more correct than
completely removing the dcop screen locking from it entirely. I'm
surprised this script gets used though, perhaps its related them being
on jaunty.


http://git.debian.org/?p=pkg-acpi/acpi-support.git;a=blob;f=debian/patches/screenblank.diff;h=883efd569f5d56a32c1b5bfd45fd051635c892c2;hb=HEAD

    6  elif [ `pidof dcopserver` ]; then
    7 -       dcop kdesktop KScreensaverIface lock
    8 +       if [ x$LOCK_SCREEN = xtrue ]; then
    9 +               avail_sessions=`dcop --all-users --list-sessions | grep 
'.DCOP.*__0'`
  10 +               # send the lock command to all sessions
  11 +               for session in $avail_sessions; do
  12 +                       # /dev/null because dcop warns if it can't connect 
to X (this is normal!)
  13 +                       dcop --session "$session" --all-users kdesktop 
KScreensaverIface lock > /dev/null 2>&1
  14 +               done
  15 +       fi
  16  fi
  17  
  18  xset dpms force off

-- 
screenblank script unconditionally forces screen lock in KDE which causes 
crashing upon lid close under KMS.
https://bugs.launchpad.net/bugs/390917
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