Feature changed by: QK ZHU (qkzhu) Feature #324570, revision 7 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 -- openSUSE Feature: https://features.opensuse.org/324570