services: gdm: Add gdm user to 'video' supplementary group.

This makes it possible to use gdm with the 'uvesafb' kernel module.
See <https://lists.gnu.org/archive/html/guix-devel/2020-03/msg00389.html>.

* gnu/services/xorg.scm (%gdm-accounts): Set supplementary groups.
This commit is contained in:
Florian Pelz 2020-03-26 15:19:21 +01:00
parent 77ca6fb316
commit acb41a4024
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@ -798,6 +798,7 @@ (define %gdm-accounts
(user-account
(name "gdm")
(group "gdm")
(supplementary-groups '("video"))
(system? #t)
(comment "GNOME Display Manager user")
(home-directory "/var/lib/gdm")