Mailinglist Archive: opensuse-features (10 mails)

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[openFATE 324570] make GDM background image configurable
Feature changed by: Ludwig Nussel (lnussel)
Feature #324570, revision 8
Title: make GDM background image configurable

Requested by: Ludwig Nussel (lnussel)
Partner organization: openSUSE.org

Description:
GDM only has very limited theming posibilites. To change the actual
wallpaper one has to modify a binary file a rather nasty and not
upgradable way:
https://wiki.archlinux.org/index.php/GDM#Log-in_screen_background_image
Please implement some more convenient way to allow custom deployments
to override the wallpaper in GDM.

Use Case:
Customers and partners might want to customize SLES, SLED, and SLE
POS.

Discussion:
#1: QK ZHU (qkzhu) (2018-09-10 03:28:09)
Upstream status: - This feature was rejected by upstream
https://bugzilla.gnome.org/show_bug.cgi?id=787454 - A new design for
login & lock screen has been proposed during 2017 GNOME Shell UX Design
Hackfest, it seems a blurred background is in their paln but I am not
sure when this will be implemented:
https://wiki.gnome.org/Design/OS/LockUnlockLogin#Tentative_Design My
questions: There are two aspects for GDM background, login screen and
lock screen - Should both of them be configurable? Login screen
background is a system-wide behavior while lock screen background is a
user-wide behavior, should lock screen align with login screen?
Tentative solutions: 1. Let GDM uses a custom CSS file and use update-
alternatives to switch between different themes. Ubuntu uses this way
to redefine their login theme:
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1715722 But
their patch doesn't change the lock screen background:
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1732450 2.
According to GResource doc: 'it is possible to use the
G_RESOURCE_OVERLAYS environment variable to selectively overlay
resources with replacements from the filesystem.' but is's only for
debugging or quick hacking and testing purposes. I will make some
investigation to check if it's a practical solution
Potential regressions: - multi-monitor behaviors - SUSE logo on the
lock screen was added as a background, it may be affected by this
feature

+ #2: Ludwig Nussel (lnussel) (2018-09-10 14:56:33Z) (reply to #1)
+ For a start the gdm background alone would be good already even without
+ lock screen :)




--
openSUSE Feature:
https://features.opensuse.org/324570

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