On Fri, Dec 2, 2011 at 7:38 PM, Damjan <gdamjan@gmail.com> wrote:

Hi all, I know systemd and lightdm are not exactly kosher on ArchLinux, but any help would be welcome.

So, I just noticed that OpenGL is using llvmpipe on my laptop, and then I found out that the /dev/dri/card0 node doesn't have the proper ACL set to allow access to my user. Also my user is not in the video group - since I've learned that's not necesseary in "modern" Linux configurations.

Considering that I'm running systemd and using lightdm as a login manager - my question is, what subsystem is responsible for settings the ACL: - ConsoleKit - PolicyKit - systemd - lightdm ?

Is the proper setup to have pam_loginuid.so, pam_ck_connector.so and pam_systemd.so in the PAM configuration for lightdm?

the output of ck-list-session is: Session2:        unix-user = '1000'        realname = ''        seat = 'Seat1'        session-type = ''        active = TRUE        x11-display = ':0'        x11-display-device = '/dev/tty7'        display-device = ''        remote-host-name = ''        is-local = TRUE        on-since = '2011-12-02T18:23:04.193636Z'        login-session-id = ''

-- дамјан

With systemd running, it's responsible for setting the ACLs on the devices. Try "systemd-loginctl list-sessions" and "systemd-loginctl show-session X" (with X=session number). Your X11 session should be active.