We need group audio (or similar) in setup to support accessible login. So gdm can become a member of this group and audio devices will be writable by this group. See also the dependent bug ang bug 204150.
This request was evaluated by Red Hat Product Management for inclusion, but this component is not scheduled to be updated in the current Red Hat Enterprise Linux release. This request will be reviewed for a future Red Hat Enterprise Linux release.
Actually group gdm could be used but it would have to be moved from gdm package to setup so pam_console and udev operation wouldn't break when gdm is not installed.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHEA-2008-0838.html