Hi James, Sorry for later reply due to my busy work. I checked Suse RPM: I am using SuSe 9.1 (kernel 2.6.4-52-smp), pam RPM version is 0.77-221. I use "rpm -ql pam" command, there is no /etc/security/console.perm file exist in the computer which exist in Fedora Core 2/3 and Mandrake. The command "rpm -ql pam" output is as followed: "/etc/pam.d /etc/pam.d/other /etc/securetty /etc/security /etc/security/access.conf /etc/security/group.conf /etc/security/limits.conf /etc/security/pam_env.conf /etc/security/time.conf /lib/* /lib/security/* /usr/share/doc/* /usr/share/man/*" I tested normal user login, login session (KDE) always change the audio (/etc/snd/*) permission to 600, and owner to current user. Is there ways I can work around it? Thanks. Rocky Rocky Zhang wrote: > Hi, > > I have a computer running with SuSe 9.1, KDE desktop. And I connected 2 > USB audio headsets to my computer. I found that before user log in, the > audio devices (such as /dev/dsp*, /dev/snd/*) owner is root:audio, > permission is 660; After one user log in, all the audio device files > change owner to $USER:audio, permission change to 600, so another users > can't have permission to use the USB headset. How can I prevent it > ( keep audio device owner always root, and permission is 660)? > I know in Gnome, it's a configuration file ( /etc/security/console.perm) > that you can edit to prevent normal session login change audio device > owner. Is there a similar file in KDE? Where is it? This isn't GNOME or KDE, it is PAM (a system level configuration). You make the same change for either one: 0660 0660 root.audio Users that are allowed to use audio must be members of the group: "audio". -- JRT ___________________________________________________ This message is from the kde-linux mailing list. Account management: https://mail.kde.org/mailman/listinfo/kde-linux. Archives: http://lists.kde.org/. More info: http://www.kde.org/faq.html.