Bug#898191: sddm: Does not honor PAM's ambient supplemental groups (via e.g. pam_group.so)

[Salvatore Bonaccorso <carnil@debian.org>]

Package: sddm
Version: 0.14.0-4
Severity: normal
Tags: upstream
Forwarded: https://github.com/sddm/sddm/pull/834

Hi

In sddm setups where the sddm pam configuration is configured to use
pam_group to add additional groups on login depending on the
/etc/security/group.conf configuration does not work. This was as well
reported upstream as https://github.com/sddm/sddm/pull/834 .

Upstream fix
https://github.com/sddm/sddm/commit/1bc813d08b8130e458a6550ec47fb2bfbe6de080

Note, similar configuration worked with kdm under Jessie, so such
setups are suffering from a slight regression when updating from
Jessie to Stretch with kdm (respective later sddm) using pam_group
setup.

Could you consider to update it in unstable and possibly via point
release in stretch? I would be happy to test any backported fix.

Regards,
Salvatore