Buggish interface @ workstation panels previews when using dual portrait

Please run `apport-collect 1947420` and add details about your system - which window manager do you use (Marco, Compton, Compiz), which graphics card, which screen resolutions do you have.

Confirmed, check https://ubuntu-mate.community/t/workspace-switcher/24686 for solution.

Before UG each workspace was about 12mm wide, after UG they are about 6mm wide.
They appear to have changed, comparatively, from landscape to portrait view.

Furthermore, space 1 and space 2 do not behave the same in terms of size and UI

17 Oct 2021, 21:45 by <email address hidden>:

> Before UG each workspace was about 12mm wide, after UG they are about 6mm wide.
> They appear to have changed, comparatively, from landscape to portrait view.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1947420
>
> Title:
> Buggish interface @ workstation panels previews when using dual
> portrait
>
> Status in MATE Desktop:
> New
> Status in Ubuntu MATE:
> Confirmed
> Status in libwnck3 package in Ubuntu:
> Confirmed
> Status in mate-panel package in Ubuntu:
> Confirmed
>
> Bug description:
> ...Freshly upgraded to 21.10 using the same OS that I used to open
> most of my previous video glitches ever...
>
> Using 2x monitor in portrait mode, the preview panel/widget(?) located
> at the bottom right side shows 2 things wrong:
>
> 1. The "Workspace 1" preview is very elongated when compared to not only all of it's previous incarnations (from 14.04 to 21.10) but also has an inconsistent size when compared to it's neighbouring "Workspace 2". Expectation: both 1 and 2 should be sized identically.
> 2. When hovering the mouse cursor on "Workspace 2" only it's left portion will highlight.
> Expectation: both monitors of "2" should highlight
>
> See enclosed picture.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/mate-desktop/+bug/1947420/+subscriptions
>

Friends, you can read and check a temporary solution from https://ubuntu-mate.community/t/workspace-switcher-scaling-issue-on-ubuntu-mate-21-10-diagnosis-and-temporary-fix/24686/5 .

Adding myself to this as this also affects me. At first I thought it was just the way things were from now on, as an experiment in how the workplace switcher worked. I did not realize it was a bug until I saw a post about it in the Ubuntu-Mate forums.

I wonder how many others just shrugged and assumed this was working as intended?

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1947420

Still happens on Jammy. Should be fixed before final release.

Still a problem for Ubuntu MATE 22.04 LTS. Please fix it on distro level.

This is not libwnck problem!

libwnck3 40.1 reverts "pager: do not change workspace size from size_allocate" that fixes this issue.

 - https://gitlab.gnome.org/GNOME/libwnck/-/commit/8191f080c0c0b2471f329d4bee329487a2b37729
 - https://gitlab.gnome.org/GNOME/libwnck/-/commit/7fab141ba787cecb576b732c9182b006453d82f4

Options are:

 - Upload libwnck3 40.1 to Jammy
 - Include commit 8191f080c0c0b2471f329d4bee329487a2b37729 as a patch in libwnck 40.0 package.

This bug was fixed in the package libwnck3 - 40.1-1

---------------
libwnck3 (40.1-1) unstable; urgency=medium

  * New upstream release (LP: #1947420)
  * Build-Depend on dh-sequence-gir & dh-sequence-gnome

 -- Jeremy Bicha <email address hidden> Thu, 24 Mar 2022 10:13:23 -0400

Martin, this *IS* bug in mate-panel, next release libwnck release will have same problem...

Revert in libwnck was added only because libwnck was released as 40.0 while it really should have been 41.alpha!