FFe: gnome-shell 3.26

[Jeremy Bícha]

The Ubuntu Desktop Team wants to ship gnome-shell/mutter 3.26 with Ubuntu 17.10. The new version appears to improve responsiveness and has quite a few other improvements and tweaks.

https://git.gnome.org/browse/gnome-shell/tree/NEWS
https://git.gnome.org/browse/mutter/tree/NEWS

armhf issue
===========
The major blocker now is that gjs 1.49/mozjs52 is not working on armhf. See https://bugzilla.gnome.org/786578

If we can't find a fix to this problem, we may need to remove gjs (and rdpends) binaries from armhf. We didn't want to rush into doing this but discuss this more as a team first.

One other option is to temporarily remove gjs 1.49 (and gnome-shell, gnome-sushi, polari) from artful-proposed. But since we do want to target mozjs52 for Ubuntu 17.10 for security support reasons, that's only a partial help.

Mutter transition
=================
mutter 3.26 has a soname bump but the only other rdepend, Budgie, is already confirmed as working with the new version.

Packaging is available in the GNOME3 Staging PPA or
https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/2916/+packages

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

Performance using the PPA seems better indeed. Only some wrong-colours bugs:
  bug 1712986
  bug 1712992
Although neither of those seem to be the fault of gnome-shell.

[amano (jyaku)]

At least the first one should already be fixed with https://github.com/GNOME/mutter/commit/06d09890147b48bfa23f122ff86cf7fc43ff84f2 which made it to the master branch two days after 3.25.91.

[Iain Lane (laney)]

I think we're far enough down this road already - please go for it sooner rather than later. Approved.

[Launchpad Janitor (janitor)]

This bug was fixed in the package gnome-shell - 3.25.91-0ubuntu1

---------------
gnome-shell (3.25.91-0ubuntu1) artful; urgency=medium

  [ Jeremy Bicha ]
  * New upstream release (LP: #1712800)
  * Build with meson
  * debian/control.in:
    - Build-depend on libasound2-dev
    - Bump minimum libglib2.0-dev to 2.53.0
    - Update dependencies for mutter 3.25.90
  * debian/rules:
    - Drop disable-new-dtags flag, no longer needed
    - Drop dh_girepository override, doesn't work with meson
      and apparently not needed
  * Refresh patches
  * Drop git patches applied in new release
  * Add run-unit-tests.patch: Run unit tests with meson

  [ Tim Lunn ]
  * New upstream release
  * debian/control.in
    - Update dependencies for mutter 3.25.91
  * debian/patches:
    - ubuntu_lock_on_suspend.patch: Rebased on changes introduced
      in commit 9c3b3320f
    - optional-libgdm.patch: disabled, this should not be required
      since Ubuntu is using gdm

 -- Jeremy Bicha <email address hidden> Wed, 30 Aug 2017 14:46:42 -0400

[Daniel van Vugt (vanvugt)]

Nice work, thanks.

Unfortunately there seems to be one regression -> bug 1714330

[Daniel van Vugt (vanvugt)]

And another -> bug 1714295