Well, it seems that the knowledge I gained over the last few days about polkit and how to configure it isn't quite good enough yet.
As I stated in the other thread there were two applications which need authorization to run and which I want to run from a menu selection in xfce4: gparted and Catalyst Control Center. The latter configures my Radeon chip. Gparted works fine--thanks, Armin. But when selecting "Catalyst Control Center-Administrative" from the menu, nothing happens. The application is called "amdcccle," but invoking that gets only the "non-privileged" version to adjust brightness, contrast and color. The privileged version is called "amdccclesu" which is actually an alias for <amdxdg-su -c amdcccle>. The amdxdg-su is a "wrapper" GUI that requires "superuser" privileges. Each is called from the menu by its own .desktop file. When I run <pkexec amdxdg-su -c amdcccle> from a terminal I get the dialogue that requires my password. But when I enter my password and <Enter> nothing happens and I get the message in the terminal: > Failed to open connection to "session" message bus: Using X11 for > dbus-daemon autolaunch was disabled at compile time, set your > DBUS_SESSION_BUS_ADDRESS instead > xprop: unable to open display '' > amdxdg-su: no graphical method available for invoking 'amdcccle' as 'root' This is reminiscent of the situation the other day, which I solved, with gparted and polkit, gnome-polkit and consolekit. In addtion, when I open the "Details" drop down in the authentification window I see: > Action: org.freedesktop.policykit.exec as opposed to what I see when I run <pkexec gparted> in a terminal: > Action: org.freedesktop.policykit.pkexec.run-gparted I would have expected the "Action" statement in the details for authenticating amdxdg-su to be "org.freedeskto.policykit.pkexec.run-amdxdg-su". Since I didn't get that, I think that there is something wrong in the pkexec policy file. Here is /usr/share/polkit-1/actions/org.freedesktop.policykit.pkexec.policy: > <?xml version="1.0" encoding="UTF-8"?> > <!DOCTYPE policyconfig PUBLIC > "-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN" > "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd";> > <policyconfig> > > <action id="org.freedesktop.policykit.pkexec.run-gparted"> > <description>Run GParted</description> > <message>Authentication is required to run GParted</message> > <defaults> > <allow_any>no</allow_any> > <allow_inactive>no</allow_inactive> > <allow_active>auth_admin_keep</allow_active> > </defaults> > <annotate > key="org.freedesktop.policykit.exec.path">/usr/sbin/gparted</annotate> > <annotate > key="org.freedesktop.policykit.exec.allow_gui">TRUE</annotate> > </action> > > > <action id="org.freedesktop.policykit.pkexec.run-amdxdg-su"> > <description>Run Catalyst Control Center</description> > <message>Authentication is required to run Catalyst Control > Center</message> > <defaults> > <allow_any>no</allow_any> > <allow_inactive>no</allow_inactive> > <allow_active>auth_admin_keep</allow_active> > </defaults> > <annotate > key="org.freedesktop.policykit.exec.path">/usr/bin/amdxdg-su -c > amdccle</annotate> > <annotate > key="org.freedesktop.policykit.exec.allow_gui">TRUE</annotate> > </action> > > </policyconfig> This is the same file I created the other day to get gparted to run from menu. I "copied and pasted" the gparted <action>.....</action> and made the changes that I thought I needed for "amdxdg-su -c amdcccle". The only difference I can see is the space-separted words in the "exec.path" line. Should the spaces be "escaped" somhow? (I would try that but I don't know the syntax for an XML file.) Also, I don't know if the whole command should be in the "run-amdxdg-su" line. I just thought this particular item was a name of sorts. And here is the "Exec" line from the .desktop file. > Exec=pkexec amdxdg-su -c amdcccle Any pointers, suggestions or directions? Thanks, Dan -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
