budgie-remix-bug-busters team mailing list archive

[Launchpad Bug Tracker <1824102@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package budgie-desktop -
10.4+git20171031.10.g9f71bb8-1.2ubuntu1.2

---------------
budgie-desktop (10.4+git20171031.10.g9f71bb8-1.2ubuntu1.2) bionic; urgency=medium

  * cherrypick upstream commits
     - 0009-Polkit-Correctly-handle-the-user-dismissing-the-auth.patch
       Hopefully resolve fix polkit crashes reported on errors.ubuntu.com due
       to Polkit dialogs still having an open process when dismissed
       (LP: #1729947)
     - cleanup-keygrab.patch
       Correcly manage custom keys and hence resolve custom keys not
       occasionally working on logon (LP: #1824229)
     - close-raven-on-workspace-switch.patch
       Usability patch to correctly dismiss raven if opened when a workspace
       is switched (LP: #1825050)
     - Ensure animations remain working with newer versions of mutter
       (LP: #1824102) animations.patch
  * Packaging Changes
    - control: Bump StandardsVersion; no changes required
    - copy budgie-core-dev.lintian-overrides from disco package to resolve
      lintian warnings
    - copy budgie-core.lintian-overrides from disco package to resolve
      lintian errors

 -- David Mohammed <fossfreedom@xxxxxxxxxx>  Wed, 10 Apr 2019 20:39:16
+0100

** Changed in: budgie-desktop (Ubuntu Bionic)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1824102

Title:
  Animations leave window artifacts when enabled

Status in budgie-desktop package in Ubuntu:
  Fix Released
Status in budgie-desktop source package in Bionic:
  Fix Released
Status in budgie-desktop source package in Cosmic:
  Fix Released
Status in budgie-desktop source package in Disco:
  Fix Released

Bug description:
  This SRU issue specifically resolves window animation issues caused by
  newer versions of mutter - later than the current version in 18.04LTS.

  This SRU is part of LP: #1824229 for 18.04 & 18.10 where additional
  disco fixes have been backported.

  For 19.04, only the animation fix has been applied (see the attached
  disco.debdiff)

  [Impact]

   * For Cosmic and Disco, animations when enabled leave visible window
  artifacts when various budgie window elements are opened and closed
  such as menu popovers and alt+tab window..

     This has been reported upstream https://github.com/solus-project
  /budgie-desktop/issues/1627

     The issue is due to changes made in mutter 3.30 and later.

   * The Ubuntu Desktop team for Bionic is also proposing to bring in
  changes in a proposed mutter release which similarly breaks Ubuntu
  Budgie LTS in this area.
  https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1811900

   * The fix made here is to force a repaint of the window area being
  animated.  Current testing have not shown any noticable user facing
  impacts such as slow/sluggish animation effects.

  [Test Case]
   18.04: Start from current 18.04 Ubuntu Budgie fully up-to-date.

   * Open budgie-desktop-settings - on the Style tab ensure animations is enabled.
     - Open the menu 3 or 4 times.  Note that the menu opens and closes correctly 
     - Open 3 or 4 apps.  Alt+Tab.  Repeat several times. No obvious window artifacts are displayed

   * To upgrade budgie-desktop on 18.04 - Enable the proposed channel.
  Install the following packages: budgie-core budgie-desktop
  gir1.2-budgie-1.0 libbudgie-plugin0 libbudgietheme0 libraven0

   * After a reboot and login repeat the menu opening and alt+tab
  actions above.  Note that animations are still displayed correctly
  without any obvious window artifacts being displayed.

  18.04 + mutter uplift: enable the proposed repository and install
  libmutter-2-0. Reboot.

     - Open the menu 3 or 4 times.  Note that the background edge of the menu remains visible on the desktop but disappears when you move your mouse over the area.
     - Open 3 or 4 apps.  Alt+Tab.  Repeat several times. Most times (not always) the alt+tab window does not fully disappear until the mouse is moved over it.
   * To upgrade budgie-desktop on 18.04 + mutter - with the proposed channel still enabled. Install the following packages: budgie-core budgie-desktop gir1.2-budgie-1.0 libbudgie-plugin0 libbudgietheme0 libraven0

   * After a reboot and login repeat the menu opening and alt+tab
  actions above.  Note that animations are displayed correctly without
  any obvious window artifacts being displayed.

  18.10 & 19.04:

     - Open the menu 3 or 4 times.  Note that the background edge of the menu remains visible on the desktop but disappears when you move your mouse over the area.
     - Open 3 or 4 apps.  Alt+Tab.  Repeat several times. Most times (not always) the alt+tab window does not fully disappear until the mouse is moved over it.
   * To upgrade budgie-desktop on 18.10 & 19.04 - Enable the proposed channel. Install the following packages: budgie-core budgie-desktop gir1.2-budgie-1.0 libbudgie-plugin0 libbudgietheme0 libraven0 libbudgie-private0

   * After a reboot and login repeat the menu opening and alt+tab
  actions above.  Note that animations are displayed correctly without
  any obvious window artifacts being displayed.

  [Regression Potential]

   * The regression potential is that not every budgie animation effect
  passes through the code that has been patched and potentially there
  could be certain budgie animations that may appear "broken".

     If this unlikely scenario occurs, a further SRU would be required
  to resolve edge cases.

     Alternatively, animations can be turned-off as was currently
  implemented in in 18.10 & 19.04

   * Testing by the team + independent testing (https://github.com/solus-project/budgie-desktop/issues/1627)
     have not uncovered any issues. Thus we believe the risks are small.

  [Other Info]

     Without out this SRU, either the migration of LP: #1811900 will
  break budgie animations in 18.04 LTS or it will hold up the mutter
  migration until more discovery work is made by upstream budgie
  developers.

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