In overview, windows from all workspaces are shown for the second display (when using "Workspaces span displays")

[Mitar]

I have disabled workspaces on primary display only, and I have enabled workspaces to span displays, in tweak tool.

Now things mostly work how I expect. Windows are isolated to the workspace they are and I can move them between displays (monitors). The issue is if I go into an overview mode. Then, for the primary display, I see only windows from my current workspace. But for the secondary display, I see windows from all workspaces being shown in the overview mode.

I would expect that only the windows from the current workspace are shown also on the secondary display in the overview mode.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-shell 3.26.2-0ubuntu0.1
ProcVersionSignature: Ubuntu 4.13.0-25.29-generic 4.13.13
Uname: Linux 4.13.0-25-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Jan 17 02:19:13 2018
DisplayManager: gdm3
InstallationDate: Installed on 2017-11-20 (57 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

This bug also affects the new LTS release:

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.28.1-0ubuntu2
ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
Uname: Linux 4.15.0-22-generic x86_64
NonfreeKernelModules: talpa_vfshook talpa_pedconnector talpa_pedevice talpa_vcdevice talpa_core talpa_linux talpa_syscallhook nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed May 23 15:25:07 2018
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
InstallationDate: Installed on 2018-05-18 (5 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel van Vugt (vanvugt)]

Thanks for the bug report. I've not seen this problem reported before so please look at the upstream bug list to see if you can find it there:

  https://bugzilla.gnome.org/

If not then please also report the bug there and let us know the link to that new bug.

[Mitar (mitar)]

It seems this one is reporting the issue: https://bugzilla.gnome.org/show_bug.cgi?id=652580

There are few patches, but it does not like fixed.

So I do not care so much about switcher than the behavior described:

Observed behavior: Actvities overview (got by pressing the logo key), however, handles the two monitors differently: for the primary monitor, it exposes only windows on the current workspace, but for the external monitor, it always shows all windows on all workspaces.

Expected behavior: when /desktop/gnome/shell/windows/workspaces_only_on_primary is false, both monitors should behave the same, and both should show only windows on the current workspace.

[david23 (david-3791)]

I can confirm the bug. However, the bug reported on gnome's bugzilla is very old. I've been using ubuntu gnome 16.04 for the last two years and everything worked fine. I've seen this bug for the first time trying out ubuntu 17.10, so I would conclude it's either related to ubuntu's customization of gnome, or to gnome versions >3.18

[Alexander (eetfuk1988)]

I can confirm it as well. Occurred after upgrade to 18.04 (X and Wayland), worked fine with 16.04 (on Gnome). Unfortunately this is a core feature to my workflow, is there a workaround?

[david23 (david-3791)]

@Alexander: as a first step, you may click on "this bug affects me" so that it gains visibility.

As a workaround you can use the extension listed in the gnome bugzilla discussion: https://extensions.gnome.org/extension/921/multi-monitors-add-on/

[Alexander (eetfuk1988)]

@David: thanks for the link to the extension you saved my life :) works like a charm! sry, for noobing around, found the "affect me" button now. thanks & best regards!

[Dark Dragon (darkdragon-001)]

This bug still exists! Using the plugin circumvents the issue though.
I am on Ubuntu 18.10 btw.

[fessmage (fessmage)]

Confirm, it also affects me in my two display desktop environment. Will it be fixed ?

[Gilson Cavalcanti (gilsoncav)]

Same problem here.
Ubuntu 18.04
Nvidia proprietary drivers v415
LightDM (because gdm3 failing to handle multiple monitors in my laptop)

[Michal Mikolas (nanuqcz)]

I have the same problem. Fresh install Ubuntu 18.04.

My previous system was Linux Mint with added GNOME shell and it worked fine there :-(

[Miloš Stojanović (stojke37)]

The same for me: this worked before in Ubuntu GNOME 16.04, and for me bug appeared in Ubuntu 18.04. The extension mentioned by @david23 works for me as a workaround.