On 01/18/2011 12:28 PM, Rick Sewill wrote: > On Tuesday, January 18, 2011 09:00:22 am Robert Nichols wrote: >> On 01/18/2011 01:34 AM, Rick Sewill wrote: >>> On Monday, January 17, 2011 10:57:00 pm Robert Nichols wrote: >>>> On 01/17/2011 09:57 PM, Rick Sewill wrote: >>>>> Question please: >>>>> >>>>> Can you use >>>>> gnome-screensaver-command -q >>>>> >>>>> man gnome-screensaver-command >>>>> >>>>> I'm currently trying out KDE so I don't know >>>>> what is returned by the above command for the >>>>> various gnome-screensaver states. >>>> >>>> As I said in my original message, when run from a cron job that fails: >>>> ** Message: Failed to connect to the D-BUS daemon: >>>> /bin/dbus-launch terminated abnormally with the following error: >>>> Autolaunch error: X11 initialization failed. >>>> >>>> And yes, I did try it with "DISPLAY=:0.0" in the environment. >>> >>> You have a good puzzle! >>> >>> I read all the responses for the problem, >>> http://www.mail-archive.com/debian-kde@xxxxxxxxxxxxxxxx/msg30421.html >>> >>> I tried to condense their answer to the following...please give it a try: >>> >>> I created a file, ${HOME}/bin/testscreensaver >>> ===== Please begin contents of file testscreensaver with following line >>> #!/bin/bash >>> >>> # We must set the DISPLAY variable so dbus is happy. >>> >>> export DISPLAY=:0.0 >>> >>> # We must find the DBUS_SESSION_BUS_ADDRESS so dbus is happy. >>> >>> for pid in $(pgrep -u $USER) >>> do >>> >>> declare DBUS_SESSION_BUS_ADDRESS=$(cat /proc/${pid}/environ | \ >>> >>> tr '\0' '\n' | grep "DBUS_SESSION_BUS_ADDRESS=") >>> >>> # I looked for the first DBUS_SESSION_BUS_ADDRESS found. >>> >>> [ -z "${DBUS_SESSION_BUS_ADDRESS}" ] || break >>> >>> done >>> >>> >>> # Strip off the DBUS_SESSION_BUS_ADDRESS= string at the beginning. >>> DBUS_SESSION_BUS_ADDRESS="${DBUS_SESSION_BUS_ADDRESS:25}" >>> >>> # I echo it for debugging purposes...you probably don't want to echo it. >>> echo "Set bus address to<${DBUS_SESSION_BUS_ADDRESS}>" >>> >>> # If I have a string, I call the gnome-screensaver-command >>> [ -z "${DBUS_SESSION_BUS_ADDRESS}" ] || gnome-screensaver-command -q >>> >>> ===== Please end file testscreensaver with previous line >> >> Hmmm, in that script you're not doing anything with >> DBUS_SESSION_BUS_ADDRESS beyond testing for non-null (it's not exported), >> so "Set bus address to" is a misnomer. "Found bus address" might be more >> to the point. It does test whether this user currently has a session, >> which is useful. >> > > Please see "man dbus-daemon". > > I believe the variable, DBUS_SESSION_BUS_ADDRESS, must be set for desktop > applications to find the per-session daemon to have interprocess communication > amongst themselves. From "man dbus-daemon", I am referring to the per-session > daemon, not the systemwide daemon. Look again at the script you posted and explain where it does anything but set and test for non-null an internal shell variable that has no special meaning to the shell itself. Had you in some manner exported that variable so that gnome-screensaver-command could see it, then I would have more reason to believe you. -- Bob Nichols "NOSPAM" is really part of my email address. Do NOT delete it. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
