when remooving or adding a user to a group with: gpasswd -a username plugdev gtkam doesn't work after that but after restarting it work same with gpasswd -d: after gpasswd -d it still work i need to restart the computer i restarted the aplication for the testing and i don't have prelinking
*** Bug 160293 has been marked as a duplicate of this bug. ***
just logout and login again (after making sure that nscd isn't caching the old info for too long). that's how NSS data sources work.