The proposed version of gnome-shell only makes this bug a little worse, to the extent that I expect other people will start reporting the bug and not just me. I don't mind if the gnome-shell fix goes into cosmic first and we live with that briefly - it would be no worse than disco is right now. However if the mutter fix was to be released first then we would avoid a perceived secondary (more visible) regression.
That all said, I agree with Didier that if other bug fixes are getting delayed by this then just release it. The proposed gnome-shell version does not need fixing in itself. It only needs an additional mutter fix later to correct the login animation appearance. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1789356 Title: The wrong background flashes up briefly during the login animation since Yaru was introduced Status in gnome-shell package in Ubuntu: Fix Released Status in mutter package in Ubuntu: In Progress Status in gnome-shell source package in Cosmic: Incomplete Status in mutter source package in Cosmic: Triaged Bug description: [Impact] The wrong background flashes up briefly (for a split second) during the login animation. The login screen and gnome-shell's system background are meant to be the same image so that the login procedure can VT switch without the user noticing. Then the final desktop expands over the system background. However it appears the login background and system background are not the same image any more, causing a visible glitch during login. [Test Case] 1. Install new version, logout 2. Log in into GDM -> Check that at login startup, the background matches GDM ones (same color, same gradient) 3. Logout, install gnome-session 4. Reboot so that GDM takes gnome-session into account 5. Select GNOME session and login -> At login startup, the background will matche the GNOME default one (from the lockscreen: grey noise), which matches GDM one if reset to default GNOME via update-alternatives. [Regression Potential] This code is loaded at session startup, if there is a syntax error, the session wouldn't start at all. This has been of course tested before committed (both on ubuntu and GNOME sessions) ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: yaru-theme-gnome-shell 18.10.2 ProcVersionSignature: Ubuntu 4.17.0-7.8-generic 4.17.12 Uname: Linux 4.17.0-7-generic x86_64 ApportVersion: 2.20.10-0ubuntu9 Architecture: amd64 Date: Tue Aug 28 14:19:48 2018 Dependencies: InstallationDate: Installed on 2018-05-26 (93 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Alpha amd64 (20180525) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_AU.UTF-8 SHELL=/bin/bash SourcePackage: yaru-theme UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1789356/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

