[Bug 1892245] [NEW] Extension breaks when accessing Overview or applications list (Focal)

[Launchpad Bug Tracker]

You have been subscribed to a public bug by fcole90 (fcole90):

[Impact]

This bug is quite disruptive, in fact, if this extension is installed
and active, it renders gnome-shell almost unusable. Anytime you open
gnome-shell's overview (using the super/win-key) or you just press on
the "Show Applications" button on the panel, instead of opening the
overlay correctly something weird happens and you cannot close it back
in any way. The only workaround I found is to press Alt+F2 and press R
to restart the shell (using Xorg).

This package used to work until a recent gnome-shell update to 3.36.5 as
part of 20.04.1, which changed some API related to setting geometries
(https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1119).
Probably nobody tested gnome-shell with this extension, I'm not sure
about the QA procedure.

This package is clearly broken in its current status, so I suggest
backporting the latest version from groovy (38-2), which has an update
that fixes the issue. I'm using it for three days now and it works
perfectly like it used to do before this bug arose.

The fix is likely this one-liner https://github.com/home-sweet-gnome
/dash-to-panel/commit/ed00ae61ba5c81ceec6e5bb9f04afa8272fac13a which
checks for the available API instead of checking the package version.


[Test Case]

What happens?

1. Install this package, and enable it (e.g. from the Extensions app) if it's not already enabled upon install. 
2. With this extension enabled, try to open the overview (e.g. by pressing the super button).
3. The overview appears corrupted, from now on it's no longer possible to close it and the windows are stuck in their position.

A screencast of the bug is available in comment #2
https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-dash-to-
panel/+bug/1892245/comments/2

What should happen instead?
At step 3 the overview to work normally and be able to switch applications as usual

[Regression Potential]

As the bug the current version is very disruptive, there is little risk
of regression. It may introduce instabilities to gnome-shell which have
not been discovered yet. I'm personally using the groovy 38-2 version
for 3 days on my main device and I didn't detect any problematic
behaviour.

[Other Info]
 
An alternative could be to cherry-pick the single fixing commit, but I did not test it, nor have been tested by upstream, hence I suggest to directly backport version 38-2 from groovy.


--- Original Description ---

Since the last boot, few minutes ago, anytime I open the gnome-shell's
overview (using the super/win-key) or I just press on the "Show
Applications" button on the panel, instead of opening the overlay
correctly something weird happens and I cannot close it back in any way.
The only workaround I found is to press Alt+F2 and press R to restart
the shell (using Xorg).

If I disable the extension, everything works correctly, so I think it to
be culprit.

What happens when I try to get the overlay and it gets stuck? You can
see the attached screenshot. Note the name of the window on the top
right, it appears as soon as I trigger the overview, like if the overlay
was open but the window was not getting resized. If I try to drag the
window, an animation shows like if the overview was correctly working,
but nothing works.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-shell-extension-dash-to-panel 31-1
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.6
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: GNOME
Date: Wed Aug 19 23:01:35 2020
InstallationDate: Installed on 2020-04-03 (137 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200401)
PackageArchitecture: all
SourcePackage: gnome-shell-extension-dash-to-panel
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.apport.crashdb.conf: 2020-05-04T10:26:46.106768

** Affects: gnome-shell-extension-dash-to-panel
     Importance: Unknown
         Status: Fix Released

** Affects: gnome-shell-extension-dash-to-panel (Ubuntu)
     Importance: Undecided
         Status: Fix Released

** Affects: gnome-shell-extension-dash-to-panel (Ubuntu Focal)
     Importance: Undecided
     Assignee: fcole90 (fcole90)
         Status: Confirmed


** Tags: amd64 apport-bug focal regression-release
-- 
Extension breaks when accessing Overview or applications list (Focal)
https://bugs.launchpad.net/bugs/1892245
You received this bug notification because you are a member of Ubuntu Sponsors Team, which is subscribed to the bug report.